Vane Type Hydraulic Pump Identification Guidelines {5055} Caterpillar


Vane Type Hydraulic Pump Identification Guidelines {5055}

Usage:

769C 01X
Articulated Truck
All
Earthmoving Compactor
All
Integrated Toolcarrier
All
Landfill Compactor
All
Off-Highway Truck/Tractor
All
Pipelayer
All
Soil Compactor
All
Track-Type Loader
All
Track-Type Skidder
All
Track-Type Tractor
All
Wheel Dozer
All
Wheel Loader
All
Wheel Skidder
All
Wheel Tractor-Scraper
All

Introduction

Table 1
Revision  Summary of Changes in SEHS9353 
11  Added new serial number prefixes 
10  Added new serial number prefixes 
09  Added new serial number prefixes. 
08  Added new serial number prefixes. 

© 2019 Caterpillar All Rights Reserved. This guideline is for the use of Cat dealers only. Unauthorized use of this document or the proprietary processes therein without permission may be violation of intellectual property law. Information contained in this document is considered Caterpillar: Confidential Yellow.

This Reuse and Salvage Guideline contains the necessary information to allow a dealer to establish a parts reusability program. Reuse and salvage information enables Caterpillar dealers and customers to benefit from cost reductions. Every effort has been made to provide the most current information that is known to Caterpillar. Continuing improvement and advancement of product design might have caused changes to your product which are not included in this publication. This Reuse and Salvage Guideline must be used with the latest technical information that is available from Caterpillar.

For questions or additional information concerning this guideline, submit a form for feedback in the Service Information System. To address an urgent issue, use the following resources to communicate your request to Caterpillar Repair Process Engineering:

  • Caterpillar Dealer Technical Communicator

  • Dealer Solution Network

  • Caterpillar Technical Representative

  • Knowledge Network

Canceled Part Numbers and Replaced Part Numbers

This document may include canceled part numbers and replaced part numbers. Use NPR on SIS for information about canceled part numbers and replaced part numbers. NPR will provide the current part numbers for replaced parts.

Summary

This guideline shows visual examples of worn hydraulic pump parts used on Caterpillar machines. Specifically, the guideline shows illustrations of vane pump parts, which can or cannot be used again with or without salvage (reconditioning) operations. This practical information is a list of items to remember when working with hydraulic vane pump parts. The list includes some basic reuse rules.

  • Never install a part again if this guideline shows that the part cannot be used again.

  • Never use a part again if the part has wear or damage that is not shown in this guideline.

  • As you look to see if a given part is reusable, be sure to remember the parts "cause and effect" in relation to other parts. Generally, failure, wear, or damage to one part can affect the performance of connected parts.

  • The following is an example of the source of a larger, future problem. There is light wear on the bearing diameter of the gear shaft. The wear is caused by contaminants (foreign material) that are embedded in the bearing bores. The condition of the bearing is not easily seen at this early stage. If a new bearing is not installed, the wear will gradually increase and cause a failure.

Important Safety Information



Illustration 1g02139237

Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools to perform these functions properly.

Improper operation, lubrication, maintenance, or repair of this product is dangerous. Improper methods could result in injury or death.

Do not operate or perform any lubrication, maintenance, or repair of this product, until you understand the operation, lubrication, maintenance, and repair information. Safety precautions and warnings are provided in this manual and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons.

Hazards are identified by a safety alert symbol. Safety alert symbols are followed by a signal word such as "Warning" that is shown below.



Illustration 2g01032906

The following is the meaning of this safety alert symbol:

  • Pay attention!

  • Become Alert!

  • Your safety is involved

The message that appears under the warning explains the hazard. The message will be written or pictorially shown.

Operations that may cause product damage are identified by "NOTICE" labels on the product and in this publication.

Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. Therefore, the warnings in this publication and on the product are not all inclusive. If a tool, a procedure, a work method, or an operating technique that is not recommended by Caterpillar is used, ensure that all personnel around the machine are safe. Ensure that the product will not be damaged or that the product will not be made unsafe by the operation, lubrication, maintenance, or repair procedures.

All of the information, specifications, and illustrations that are in this publication are based on information that was available at the time of publication. The following specifications could change at any time: specifications, torque, pressures, measurement, adjustments, illustrations and other items. These changes can affect the service that is given to the product. Obtain the most current and complete information before you start any job. Caterpillar dealers have the most current information that is available.

Safety

------ WARNING! ------

Sudden movement of the machine or release of oil under pressure can cause injury to persons on or near the machine.

To prevent possible injury, perform the procedure that follows before testing and adjusting the steering system.


------ WARNING! ------

Personal injury can result from hydraulic oil pressure and hot oil.

Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.

Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.


------ WARNING! ------

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.

Dispose of all fluids according to local regulations and mandates.


References

Table 2
Media Number  Title 
NENG2500  Dealer Service Tool Catalog 

Pump Identification

Identifying the Vane Type Pump

Identify a vane type pump prior to disassembly by looking into the inlet port.



Illustration 3g03347550
(1) Cam Ring
(2) Flex Plate

If Cam Ring (1) and Flex Plate (2) can be seen, then the pump is a vane type pump.

Identification by Model Code



Illustration 4g03343409
Model Code number location.

A model code identification number is found on the pump group. Refer to the model code breakdown diagram to assist in identifying the pump series. A model breakdown code is included for each pump series along with a parts identification page.



Illustration 5g02533117

Note: Standard right-hand shaft rotation cartridges shown. Reverse for left-hand rotation.

To reverse cartridge kit rotation, remove the two screws, and reverse the location of the inlet support plate and outlet support plate. Reinstall the two screws hand tight. Use the pump cover to align all sections of the cartridge. Remove the cover carefully and tighten screws to the recommended torque.

MODEL CODE BREAKDOWN



Illustration 6g02533120

For satisfactory service life of these components, use full flow filtration to provide fluid which meets ISO cleanliness code 18/15 or cleaner. Selections from pressure, return, and in-line filter series are recommended.

Determining the Pump Series

If the model identification number cannot be found, or is not legible, measure the overall pump length. Refer to the conversion in Table 3.



Illustration 7g02533121
Vane type pump without attached flow control valve.

The proper overall pump length is measured from the mounting flange to the rear cover for vane type pumps without attached flow control valves.



Illustration 8g02533122
Vane type pump with attached flow control valve.

Some double vane pumps have a flow control valve attached to the rear cover. The proper length is measured from the mounting flange to the rear of the flow control cover.

Table 3
Vane Type Pump Series Identification By Length 
Pump Length Series inches (mm)  Series 
162.0 mm (6.38 inch)  Series 25VQ
Series 26VQ 
185.0 mm (7.28 inch)  Series 30VQ
Series 31VQ
Series 35VQ
Series 36VQ 
216.0 mm (8.50 inch)  Series 45VQ 
250.0 mm (9.84 inch)  Series 2520VQ
Series 2521VQ
Series 2620VQ
Series 2621VQ 
275.0 mm (10.83 inch)  Series 3520VQ
Series 3521VQ
Series 3621VQ 
288.0 mm (11.34 inch)  Series 3525VQ
Series 3625VQ 
304.0 mm (11.97 inch)  Series 4520VQ 
325.0 mm (12.80 inch)  Series 4525VQ 
353.0 mm (13.90 inch)  Series 4535VQ 

Determining the Cartridge



Illustration 9g03347541
Outlet support plate shown.
(1) Cartridge direction of rotation
(2) Flow rate

Each pump series may use various cartridges. When determining the proper cartridge, locate the cartridge direction of rotation (1). Next locate the flow rate in gallons per minute (GPM) at 1200 rpm (2) stamped on the bevel edge of the cam ring.

If there is a bronze bushing present on the inlet (flat end) plate, the direction of rotation is viewed from the opposite (outlet plate) side of the cartridge.

If no bushing is present in the inlet (flat end) plate, the direction of rotation is viewed from that side of the cartridge.

Shaft Reference Data



Illustration 10g03390176
(1) Shaft length
(2) Number of front cartridge external spline teeth
(3) Number of external spline teeth
(4) Number of external spline teeth

Note: Some shafts may have an additional internal spline (rear cartridge - if double) or three cartridge pumps.



Illustration 11g02533138
(5) External spline major diameter

The following information is needed for shaft reference:

  • Shaft length (1).

  • Number of front cartridge external spline teeth (2).

  • Number of external spline teeth (3).

  • Number of external spline teeth (4).

  • External spline major diameter (5).

Compile this information for the shaft. Refer to the "Caterpillar Vane Pump Shaft Reference Guide" pages and locate the part number with equivalent specifications.

If equivalent shaft specifications cannot be found, the shaft is proprietary and will have to be sourced locally.

25 VQ Pumps

MODEL CODE BREAKDOWN



Illustration 12g02533160

Table 4
MODEL  INLET COVER POSITIONS (VIEWED FROM COVER END) 
** VQ * * A - * * *A- 20 (L)  Opposite outlet port 
** VQ * * A - * * *B- 20 (L)  90° clockwise from outlet 
** VQ * * A - * * *C- 20 (L)  In-line with outlet 
** VQ * * A - * * *D- 20 (L)  90° counterclockwise from outlet 


Illustration 13g02533176
Cartridge kit.

Parts are the same for both right and left-hand rotation. When ordering spare cartridge parts, the recommendation is to obtain cartridge kits. Kits are assembled and tested for either right or left-hand rotation. If left-hand rotation is required, the rotation should be specified on parts order by adding suffix "L" to kit number. For example, 416439-L.

For satisfactory service life of these components, use full flow filtration to provide fluid which meets ISO cleanliness code 18/15 or cleaner. Selections from pressure, return, and in-line filter series are recommended.



Illustration 14g03344361
25VQ exploded view.

Table 5
25VQ VANE TYPE PUMPS 
Item  Qty.  Part No.  Description 
(1)  2B-2006  Screw
- 2*VQ*A/C-(*)***-20(*)
- 2*VQ*B/D-(*)***-20(*) 
65-8569 - 3*VQ*A/C-(*)***-20(*)
- 3*VQ*B/D-(*)***-20(*) 
(2)  4J-0975  Cover
- 2*VQ*A/C-(*)***-20(*) 
1U-4792 - 2*VQ*B/D-(*)***-20(*)
4J-2395 - 3*VQ*A/C-(*)***-20(*)
6E-3205 - 3*VQ*B/D-(*)***-20(*)
(3)  9T-51101  Screw
- 2*VQ12A-(*)***-20(*)
- 2*VQ14A-(*)***-20(*)
- 2*VQ17A-(*)***-20(*)
- 2*VQ19A-(*)***-20(*)
- 2*VQ21A-(*)***-20(*) 
9T-51111 - 2*VQ24A-(*)***-20(*)
- 2*VQ28A-(*)***-20(*) 
(4)  9T-50411  Pin 
(5)  9T-50471  Inlet Support Plate (includes bushing) 
(6)  8C-30781  Seal Pack 
3G-21921
(7)  1U-03791  Flex·Side Plate Kit 
(8)  64-73101  Rotor
- 2*VQ12A-(*)***-20(*)
- 2*VQ14A-(*)***-20(*)
- 2*VQ17A-(*)***-20(*)
- 2*VQ19A-(*)***-20(*)
- 2*VQ21A-(*)***-20(*) 
4J-75081 - 2*VQ24A-(*)***-20(*)
- 2*VQ28A-(*)***-20(*) 
(9)  64-73111  Vane Kit (ten vanes and ten inserts)
- 2*VQ12A-(*)***-20(*)
- 2*VQ14A-(*)***-20(*)
- 2*VQ17A-(*)***-20(*)
- 2*VQ19A-(*)***-20(*) 
4J-23981 - 2*VQ21A-(*)***-20(*)
- 2*VQ24A-(*)***-20(*)
- 2*VQ28A-(*)***-20(*) 
(10)  9T-50651  Ring
- 2*VQ12A-(*)***-20(*) 
9T-50671 - 2*VQ14A-(*)***-20(*)
9T-50691 - 2*VQ17A-(*)***-20(*)
9T-50711 - 2*VQ19A-(*)***-20(*)
9T-50721 - 2*VQ21A-(*)***-20(*)
9T-50731 - 2*VQ24A-(*)***-20(*)
9T-50751 - 2*VQ28A-(*)***-20(*)
(11)  9T-50901  Outlet Support Plate 
(12)  6V-1197  O-ring 
(13)  3G-2193  Sealing ring 
(14)  8J-4351  O-ring 
(15)  9T-5086  Back-up ring 
(16)  4M-7652  Snap ring 
(17)  1L-8497  Snap ring 
(18)  6B-1124  25VQ Standard Duty Bearing 
4J-0985 26VQ Heavy Duty Bearing 
6B-1124 30VQ Standard Bearing 
4J-0985 31VQ Heavy Duty Bearing 
(19)  6E-3206  Single Seal Shaft No. 1 
65-8973 Single Seal Shaft No. 3 
4J-0974 Single Seal Shaft No. 5 
6E-3207 Single Seal Shaft No. 6 
1U-4788 Single Seal Shaft No. 11 
8J-8624 Single/Double Seal Shaft No. 105 
(20)  66-9598  Key - Straight, Keyed (with shaft 6E-3206
1B-8714 Key - Keyed with nut (with shaft 65-8973
1B-8714 Key - Keyed Shaft (with shaft 6E-3207
(21)  4M-7648  Washer 
(22)  5P-0903  Shaft Seal 
(23)  3G-9193  Shaft Seal (use on "S" flange mounted models only) 
(24)  6E-3202  Body-Model 2*VQ A/D-**-20 
54-0431 Model 2*VQ B/C-**-20 
6E-3203 Model 3*VQ A/D-**-20 
54-0431 Model 3*VQ B/C-**-20 
(25)  66-9598  Key - Straight, Keyed (with shaft 6E-3206
1B-8714 Key - Keyed with nut (with shaft 6S-8973
1B-8714 Key - Keyed Shaft (with shaft 6E-3207

1These parts are included in cartridge kit.

Left Cart. Kit/Right Cart. Kit [Remanufactured Cartridge L/R]

3G2717/1U3519 2*VQ12A-(*)***-20(*) [0R1457/0R1503]

3G7653/3G2200 2*VQ14A-(*)***-20(*) [0R1473/0R1453]

3G7654/3G2195 2*VQ17A-(*)***-20(*) [0R1474/0R1451]

3G2718/3G2196 2*VQ19A-(*)***-20(*) [0R1458/0R1452]

3G7655/1U2668 2*VQ21A-(*)***-20(*) [0R1475/0R1499]

3G2807/3G2806 3*VQ24A-(*)***-20(*) [0R1467/0R1466]

6E4265/6E3209 3*VQ28A-(*)***-20(*)

35 VQ Pumps

MODEL CODE BREAKDOWN



Illustration 15g02533196
Model 35VQ code breakdown.

Table 6
MODEL  INLET COVER POSITIONS (VIEWED FROM COVER END) 
35 VQ * * A - * * *A- 20 (L)  Opposite outlet port 
35 VQ * * A - * * *B- 20 (L)  90° clockwise from outlet 
35 VQ * * A - * * *C- 20 (L)  In-line with outlet 
35 VQ * * A - * * *D- 20 (L)  90° counterclockwise from outlet 


Illustration 16g03116690
Cartridge kit.

Caterpillar recommends ordering cartridge kits. Kits are assembled and tested by Vickers for either right or left-hand rotation. If left-hand rotation is required, left hand should be specified on parts order by adding suffix "L" to cartridge kit number: For example, 413420-L.

For satisfactory service life of these components, use full flow filtration to provide fluid which meets ISO cleanliness code 18/15 or cleaner. Selections from Vickers Series OFP, Series OFR, and Series OFRS series are recommended.



Illustration 17g02533218
35VQ exploded view.

Table 7
35VQ VANE TYPE PUMPS 
Item  Qty.  Part No.  Description 
(1)  1A-5405  Bolt 
(2)  3D-6156  Inlet Cover 
(3)  9T-51121  Screw 
(4)  9T-50421  Pin 
(5)  9T-50501  Inlet Support Plate ( 6E-3212 Bushing) 
(6)  8C-30791  Seal Pack 
3G-12641
(7)  lU-03801  Flex-Side Plate Kit 
(8)  9T-51071  Rotor 
(9)  9T-50571  Vane Kit (ten vanes and ten inserts) 
(10)  6E-32141  Ring
- 3*VQ21A-(*)***-20(*) 
9T-50741 - 3*VQ25A-(*)***-20(*)
9T-50751 - 3*VQ30A-(*)***-20(*)
9T-50761 - 3*VQ35A-(*)***-20(*)
9T-50771 - 3*VQ38A-(*)***-20(*)
(11)  9T-50921  Outlet Support Plate 
(12)  5D-5958  O-ring 
(13)  3G-1820  Sealing ring (install in body before installation of cart. kit) 
(14)  61-9457  O-ring 
(15)  9T-5087  Back-up ring 
(16)  2J-8172  Snap ring 
(17)  98-2858  Retaining ring 
(18)  2L-5271  35VQ Bearing (direct drive) 
5J-0441 36VQ Bearing (indirect drive)
1B-4116 36VQ Bearing (indirect drive)
(19)  6E-3257  Single Seal Shaft No. 1 
9J-5090 Single Seal Shaft No. 4
7J-6229 Single Seal Shaft No. 11
6E-3211 Single Seal Shaft No. 86
9J-509O Single/Double Seal Shaft No. 110
(20)  6E-3251  Key - Straight, Std (with shaft 6E-3257
6E-3252 Key - Straight, Heavy Duty (with shaft 6E-3211)
(21)  2J-8168  Retainer 
(22)  9J-7814  Shaft Seal 
(23)  3G-9194  Shaft Seal (use on "S" flange mounted models only) 
(24)  6E-3259  Outlet Body 

1These parts are included in cartridge kit.

Left Cart. Kit/Right Cart. Kit [Remanufactured Cartridge L/R]

6E4266/6E3210 3*VQ21A-(*)***-20(*)

4T6869/3G1267 3*VQ25A-(*)***-20(*) [0R1462/0R1448]

9T2200/3G1266 3*VQ30A-(*)***-20(*) [0R1450/0R1447]

4T1893//3G7651 3*VQ35A-(*)***-20(*) [0R1491/0R1471]

1U3953/1U2669 3*VQ38A-(*)***-20(*) [0R1505/0R1500]

45 VQ Pumps

MODEL CODE BREAKDOWN



Illustration 18g02533338
Model 45VQ code breakdown.

Table 8
MODEL  INLET COVER POSITIONS (VIEWED FROM COVER END) 
45 VQ * * A - * * *A- 20 (L)  Opposite outlet port 
45 VQ * * A - * * *B- 20 (L)  90° clockwise from outlet 
45 VQ * * A - * * *C- 20 (L)  In-line with outlet 
45 VQ * * A - * * *D- 20 (L)  90° counterclockwise from outlet 


Illustration 19g03116692
Cartridge kit

Parts are the same for both right and left-hand rotation. When ordering spare cartridge parts, the recommendation for ordering spare cartridge parts is to obtain cartridge kits. Kits are assembled and tested for either right or left-hand rotation. If left-hand rotation is required, left- hand should be specified on parts order by adding suffix "L" to cartridge kit number: For example, 416435-L.

For satisfactory service life of these components, use full flow filtration to provide fluid which meets ISO cleanliness code 18/15 or cleaner. Selections from pressure, return, and in-line filter series are recommended.



Illustration 20g02533361
45VQ exploded view.

Table 9
45VQ VANE TYPE PUMPS 
Item  Qty.  Part No.  Description 
(1)  1D-4617  Screw 
(2)  4J-1395  Inlet Cover 
(3)  9T-51131  Screw 
(4)  9T-50431  Pin 
(5)  9T-50511  Inlet Support Plate (includes bushing) 
(6)  09-20621  Seal Pack 
3G-22411
(7)  1U-03811  Flex-Side Plate Kit 
(8)  9T-51081  Rotor 
(9)  6E-32611  Vane Kit (ten vanes and ten inserts) 
(10)  9T-50781  Ring
- 45VQ42A-(*)***-20(*) 
9T-50811 - 45VQ47A-(*)***-20(*)
9T-50791 - 45VQ50A-(*)***-20(*)
9T-50821 - 45VQ57A-(*)***-20(*)
9T-50841 - 45VQ60A-(*)***-20(*)
(11)  9T-50951  Outlet Support Plate 
(12)  6V-1195  O-ring 
(13)  3G-2242  Sealing ring (install in body before installation of cart. kit) 
(14)  6V-1179  O-ring 
(15)  9T-5088  Back-up ring 
(16)  3J-7719  Snap ring 
(17)  1J-6474  Retaining ring 
(18)  3L-1425  Bearing 
(19)  9M-9964  Single Seal Shaft No. 4 
6E-3218 Single Seal Shaft No. 11
6E-3216 Single Seal Shaft No. 86
6E-3217 Single Seal Shaft No. 130
(20)  1K-2550  Key - Straight, Std (with shaft 6E-3216
(21)  2J-7763  Washer 
(22)  5P-0904  Shaft Seal 
(23)  6V-2318  Shaft Seal (use on "S" flange mounted models only) 
(24)  54-0428  Outlet Body 

1These parts are included in cartridge kit.

Left Cart. Kit/Right Cart. Kit [Remanufactured Cartridge L/R]

3G2236/3G2238 45VQ42A-(*)***-20(*) [0R1455/0R1456]

3G7661/1U2670 45VQ47A-(*)***-20(*) [0R1481/0R1501]

3G7660/3G7656 45VQ50A-(*)***-20(*) [0R1480/0R1476]

3G7667/3G7657 45VQ57A-(*)***-20(*) [0R1487/0R1477]

3G2234/1U2671 45VQ60A-(*)***-20(*) [0R1454/0R1502]

2520 VQ Pumps



Illustration 21g02533364

Note: Standard right-hand shaft rotation cartridges shown. Reverse for left-hand rotation.

To reverse cartridge kit rotation, remove the two screws, and reverse the location of the inlet support plate and outlet support plate. Reinstall the two screws hand tight. Use pump cover to align all sections of the cartridge. Remove cover carefully and tighten screws to recommended torque.

MODEL CODE BREAKDOWN



Illustration 22g03117016
Model 2520 code breakdown

The fluid medium must have initial and continuous filtration of 25 microns absolute or less. Proper filtration will provide maximum equipment life. (For information pertaining to Sperry Vickers economical 3 micron or 10 micron filters, see installation drawing 522140.)



Illustration 23g02533378
2520 exploded view

Table 10
2520VQ VANE TYPE PUMPS 
Item  Qty.  Part No.  Description 
(1)  OT-0319  Screw 
(2)  3J-6008  Snap ring 
(3)  3J-6019  Plug 
(4)  4J-1657  - 252*VQ*A/F·*-****20 
54-0429 Straight Thread - 4-bolt
- 252*VQ*C/E·*-****20
6E-3222 Flow Control - 4-bolt
- 252*VQ*C/E·*-**2*20
6E-3223 Flow Control - 4-bolt
- 252*VQ*C/E·*-**4*20
6E-3224 Flow Control - 4-bolt
- 252*VQ*C/E·*-**6*20
6E-3225 Flow Control - 4-bolt
- 252*VQ*C/E·*-**7*20
6E-3226 Flow Control - 4-bolt
- 252*VQ*C/E·*-**8*20
6E-3227 Flow Control - 4-bolt
- 252*VQ*C/E·*-**10*20
6E-3228 Flow Control - 4-bolt
- 252*VQ*C/E·*-**12*20
(5)  66-9603  Relief Valve - (750 PSI)
- 252 *VQ***-***D20 
61-4237 (1000 PSI)
- 252 *VQ***-***D20
64-9828 (1250 PSI)
- 252 *VQ***-***E20
64-2435 (1500 PSI)
- 252 *VQ***-***F20
64-2436 (1750 PSI)
- 252 *VQ***-***G20
64-0298 (2000 PSI)
- 252 *VQ***-***H20
65-3219 (2250 PSI)
- 252 *VQ***-***J20
54-1728 (2500 PSI)
- 252 *VQ***-***K20
(6)  65-3550  Spring 
(7)  3J-6019  Plug 
(8)  9T-50851  Back-up ring
- 2*20*** 5**-***20
- 2*20*** 8**-***20
- 2*20*** 9**-***20
- 2*20*** 11*-***20
- 2*20*** 12*-***20
- 2*20*** 14*-***20
- 2*21*** 5**-***20
- 2*21*** 8**-***20
- 2*21*** 9**-***20
- 2*21*** 11**-***20
- 2*21*** 12**-***20
- 2*21*** 14*-***20 
(9)  4F-79521  O-ring 
(10)  3G-27161  Seal ring 
(11)  2H-39311  O-ring 
(12)  9T-50891  Outlet Support Plate 
(13)  54-46751  Seal Pack 
(14)  1U-03781  Flex Side Plate Kit 
(15)  9T-51031  Rotor
- 2*20*** 5**-***20
- 2*20*** 8**-***20
- 2*20*** 9**-***20 
9T-51041 - 2*20*** 11*-***20
- 2*20*** 12*-***20
- 2*20*** 14*-***20
6E-32191 - 2*21*** 5**-***20
- 2*21*** 8**-***20
- 2*21*** 9**-***20
6E-32201 - 2*21*** 11**-***20
- 2*21*** 12**-***20
- 2*21*** 14*-***20
(16)  9T-50531  Vane Kit - (includes ten vanes and inserts)
- 2*20*** 5**-***20
- 2*20*** 8**-***20
- 2*20*** 9**-***20 
4J-16621 - 2*20*** 11*-***20
- 2*20*** 12*-***20
- 2*20*** 14*-***20
9T-50531 - 2*21*** 5**-***20
- 2*21*** 8**-***20
- 2*21*** 9**-***20
9T-50541 - 2*21*** 11**-***20
- 2*21*** 12**-***20
- 2*21*** 14*-***20
(17)  9T-50591  Ring
- 2*20*** 5**-***20 
9T-50601 - 2*20*** 8**-***20
9T-50611 - 2*20*** 9**-***20
9T-50621 - 2*20*** 11*-***20
9T-50631 - 2*20*** 12*-***20
9T-50641 - 2*20*** 14*-***20
9T-50591 - 2*21*** 5**-***20
9T-50601 - 2*21*** 8**-***20
9T-50611 - 2*21*** 9**-***20
9T-50621 - 2*21*** 11**-***20
9T-50631 - 2*21*** 12**-***20
9T-50641 - 2*21*** 14*-***20
(18)  9T-50451  Inlet Support Plate
- 2*20*** 5**-***20
- 2*20*** 8**-***20
- 2*20*** 9**-***20 
9T-50461 - 2*20*** 11**-***20
- 2*20*** 12*-***20
- 2*20*** 14*-***20
9T-50451 - 2*21*** 5**-***20
- 2*21*** 8**-***20
- 2*21*** 9**-***20
9T-50461 - 2*21*** 11**-***20
- 2*21*** 12**-***20
- 2*21*** 14*-***20
(19)  54-46721  Pin 
(20)  54-46731  Screw 
(21)  1D-4574  Bolt 
(22)  4J-2457  Inlet Housing 
(23)  9T-51102  Screw 
(24)  9T-50412  Pin 
(25)  9T-50482  Inlet Support Plate 
(26)  8C-30782  Seal Pack 
3G-21922
(27)  1U-03792  Flex Side Plate Kit 
(28)  64-73102  Rotor 
(29)  9T-50692  Vane Kit (includes ten vanes and inserts) 
(30)  9T-50652  Ring
- 2*2*VQ12****-***20 
9T-50672 - 2*2*VQ14****-***20
9T-50692 - 2*2*VQ17****-***20
9T-50712 - 2*2*VQ19****-***20
9T-50722 - 2*2*VQ21****-***20
(31)  9T-50902  Outlet Support Plate 
(32)  6V-11972  O-ring 
(33)  3G-21932  Seal ring 
(34)  8J-43512  O-ring 
(35)  9T-50862  Ring 
(36)  4M-7652  Lock ring
- 252*VQ******-***20
- 262*VQ******-***20 
(37)  1L-8497  Retaining ring
- 252*VQ******-***20
- 262*VQ******-***20 
(38)  6B-1124  Bearing
- 262*VQ******-***20 
4J-0985 - 262*VQ******-***20
(39)  54-0430  Shaft
- 2*20/2*21 (Shaft No. 1) 
7J-6228 2*20/2*21 (Shaft No. 11)
9J-5093 2*20 (Shaft No. 123)
(40)  66-9598  Key - Str., Keyed (with shaft 54-0430
(41)  4M-7648  Washer 
(42)  5P-0903  Primary Shaft Seal 
(43)  6E-3202  Body - 4-bolt (2*2VQ*A/E*-**20 
54-0431 - Str. Thread (2*2VQ*C/F*-**20
(44)  3G-9193  Secondary shaft seal (with shaft 9J-5093

1These parts are included in cartridge kit.

Left Cart. Kit/Right Cart. Kit [Remanufactured Cartridge L/R]

3G2722/6E3229 2*20*** 5**-***20 [0R1461]

3G2749/1U2664 2*20*** 8**-***20 [0R1463/0R1495]

3G2719/6E3221 2*20*** 9**-***20 [0R1459]

3G2720/3G2751 2*20*** 11**-***20 [0R1460/0R1464]

3G7659/4T3196 2*20*** 12*-***20 [0R1479/0R1493]

3G7658/1U2665 2*20*** 14*-***20 [0R1478/0R1496]

6E4267/6E3235 2*21*** 5**-***20

6E4261/6E3231 2*21*** 8**-***20

6E4260/6E3230 2*21*** 9**-***20

6E4262/6E3232 2*21*** 11**-***20

6E4263/6E3233 2*21*** 12**-***20

6E4264/6E3234 2*21*** 14*-***20

2These parts are included in cartridge kit.

Left Cart. Kit/Right Cart. Kit [Remanufactured Cartridge L/R]

3G2717/1U3519 2*2*VQ12****-***20 [0R1457/0R1503]

3G7653/3G2200 2*2*VQ14****-***20 [0R1473/0R1453]

3G7654/3G2195 2*2*VQ17****-***20 [0R1474/0R1451]

3G2718/3G2196 2*2*VQ19****-***20 [0R1458/0R1452]

3G7655/1U2668 2*2*VQ21****-***20 [0R1475/0R1499]

3525 VQ Pumps



Illustration 24g02533558

Note: Standard right-hand shaft rotation cartridges shown. Reverse for left-hand rotation.

To reverse cartridge kit rotation, remove the two screws, and reverse the location of the inlet support plate and outlet support plate. Reinstall the two screws hand tight. Use pump cover to align all sections of the cartridge. Remove cover carefully and tighten screws to recommended torque.

MODEL CODE BREAKDOWN



Illustration 25g02533559
Model 3525 code breakdown.

For satisfactory service life of these components, use full flow filtration to provide fluid which meets ISO cleanliness code 18/15 or cleaner. Selections from pressure, return, and in-line filter series are recommended.



Illustration 26g02533598
3525 exploded view.

Table 11
3525VQ VANE TYPE PUMPS 
Item  Qty.  Part No.  Description 
(1)  1D-4599  Screw 
(2)  4K-0415  Cover - 4·bolt flange
3*25VQ*A*-***20(L)
- Straight thd
3*25VQ*E*-***20(L) 
6E-3243
(3)  9T-50861  Back·up ring 
(4)  8J-43511  O-ring 
(5)  3G-21931  Seal ring 
(6)  6V-11971  O-ring 
(7)  9T-50901  Outlet Support Plate 
(8)  8C-30781  Seal Pack 
3G-21921
(9)  1U-03791  Flex Side Plate Kit 
(10)  64-73101  Rotor 
(11)  6E-32611  Vane Kit - (includes ten vanes and inserts) 
(12)  9T-50651  Ring
- 3*25***12**-***20 
9T-50671 - 3*25***14**-***20
9T-50691 - 3*25***17**-***20
9T-50711 - 3*25***19**-***20
9T-50721 - 3*25***21**-***20
(13)  9T-50481  Inlet Support Plate 
(14)  9T-50411  Pin 
(15)  12  9T-51101  Screw 
(16)  2B-0947  Screw 
(17)  4K-0413  Inlet Body 
(18)  9T-51122  Screw 
(19)  9T-50422  Pin 
(20)  9T-50502  Inlet Support Plate (includes bushing) 
6E-32122
(21)  8C-30792  Seal Pack 
3G-12642
(22)  1U-03802  Flex Side Plate Kit 
(23)  9T-51072  Rotor 
(24)  9T-50572  Vane Kit (includes ten vanes and inserts) 
(25)  6E-32142  Ring
- 3*25VQ21A*-****-****20(*) 
9T-50742 3*25VQ25A*-****-****20(*)
9T-50752 3*25VQ30A*-****-****20(*)
9T-50762 3*25VQ35A*-****-****20(*)
9T-50772 3*25VQ38A*-****-****20(*)
(26)  9T-50922  Outlet Support Plate 
(27)  5D-59582  O-ring 
(28)  3G-18202  Sealing ring (install in body before installation of cart. kit) 
(29)  61-94572  O-ring 
(30)  9T-50872  Back-up ring 
(31)  2J-8172  Snap ring 
(32)  4M-5285  Snap ring 
(33)  2L-5241  Bearing - direct - 3525VQ 
5J-0441 - indirect - 3625VQ
(34)  6E-3227  Shaft - Str., Keyed std (Shaft No. 1) 
6E-3266 - Spline (Shaft No. 11)
1U-3883 - Spline (Shaft No. 19)
9J-5101 - Spline (Shaft No. 33)
6E-3238 - Str., Keyed Heavy Duty (Shaft No. 86)
(35)  6E-3251  Key - with shaft 6E-3237
- with shaft 6E-3238 
6E-3252
(36)  2J-8168  Washer 
(37)  9J-7814  Seal 
(38)  6E-3259  Body 
(39)  3G-9194  Secondary Shaft Seal
(use on "S" flange mounted models only) 

1These parts are included in cartridge kit.

Left Cart. Kit/Right Cart. Kit [Remanufactured Cartridge L/R]

6E4268/6E3239 3*25***12**-***20

1U3952/9J7891 3*25***14**-***20 [0R1504/0R1488]

3G7663/1U4666 3*25***17**-***20 [0R1483/0R1497]

1U2652/3G7652 3*25***19**-***20 [0R1494/0R1472]

3G2752/3G7662 3*25***21**-***20 [0R1465/0R1482]

2These parts are included in cartridge kit.

Left Cart. Kit/Right Cart. Kit [Remanufactured Cartridge L/R]

6E4266/6E3210 3*25VQ21A***-****20(*)

4T6869/3G1267 3*25VQ25A***-****20(*) [0R1462/0R1448]

9T2200/3G1266 3*25VQ30A***-****20(*) [0R1450/0R1447]

4T1893/3G7651 3*25VQ35A***-****20(*) [0R1491/0R1471]

1 U3953/1U2669 3*25VQ38A***-****20(*) [0R1505/0R1500]

4525 VQ Pumps



Illustration 27g02533622

Note: Standard right-hand shaft rotation cartridges shown. Reverse for left-hand rotation.

To reverse cartridge kit rotation, remove the two screws, and reverse the location of the inlet support plate and outlet support plate. Reinstall the two screws hand tight. Use pump cover to align all sections of the cartridge. Remove cover carefully and tighten screws to recommended torque.

MODEL CODE BREAKDOWN



Illustration 28g03115040
Model 4525 code breakdown.

For satisfactory service life of these components, use full flow filtration to provide fluid which meets ISO cleanliness code 18/15 or cleaner. Selections from pressure, return, and in-line filter series are recommended.



Illustration 29g03117164
4525 exploded view.

Table 12
4525VQ VANE TYPE PUMPS 
Item  Qty.  Part No.  Description 
(1)  1D-4599  Screw 
(2)  4K-0415  Cover - 4·bolt flange
4525VQ*A*-**10
- Straight thd
4525VQ*E*-**10 
6E-3243
(3)  9T-50861  Back·up ring 
(4)  8J-43511  O-ring 
(5)  3G-21931  Seal ring 
(6)  6V-11971  O-ring 
(7)  9T-50901  Outlet Support Plate 
(8)  8C-30781  Seal Pack 
3G-21921
(9)  1U-03791  Flex Side Plate Kit 
(10)  64-73101  Rotor 
(11)  9T-50691  Vane Kit - (includes ten vanes and inserts) 
(12)  9T-50651  Ring
- 4525***12*(*)-****20(*) 
9T-50671 - 4525***14*(*)-****20(*)
9T-50691 - 4525***17*(*)-****20(*)
9T-50711 - 4525***19*(*)-****20(*)
9T-50721 - 4525***21*(*)-****20(*)
(13)  9T-50481  Inlet Support Plate 
(14)  9T-50411  Pin 
(15)  9T-51101  Screw 
(16)  4J-3427  Screw 
(17)  7J-8081  Inlet Housing 
(18)  9T-51132  Screw 
(19)  54-46722  Pin 
(20)  9T-50512  Inlet Support Plate (includes bushing) 
(21)  09-20622  Seal Pack 
3G-22412
(22)  1U-03802  Flex Side Plate Kit 
(23)  9T-51082  Rotor 
(24)  9T-50592  Vane Kit (includes ten vanes and inserts) 
(25)  9T-50782  Ring
- 4525VQ421A-****-****20(*) 
9T-50872 - 4525VQ47A-****-****20(*)
9T-50792 - 4525VQ50A-****-****20(*)
9T-50742 - 4525VQ57A-****-****20(*)
9T-50842 - 4525VQ60A-****-****20(*)
(26)  9T-50952  Outlet Support Plate 
(27)  6V-1195  O-ring 
(28)  3G-2242  Seal ring 
(29)  6V-1179  O-ring 
(30)  9T-5088  Back-up ring 
(31)  3J-7719  Snap ring 
(32)  1J-6474  Retaining ring 
(33)  3L-1425  Bearing 
(34)  6E-3244  Shaft - Str., Keyed std (Shaft No. 1) 
6E-3245 Shaft - Spline (Shaft No. 11)
9J-5102 Shaft - Spline (Shaft No. 19)
6E-3246 Shaft - Str., Keyed, Heavy Duty (Shaft No. 86)
(35)  6E-3253  Key - with shaft 6E-3244 
1K-2550 Key - with shaft 6E-3246
(36)  2J-1763  Washer 
(37)  5P-0904  Primary Shaft Seal (wipe O.D. with oil before installation) 
(38)  54-0428  Body 
(39)  6V-2318  Secondary Shaft Seal
(use on "S" flange mounted models only) 

1These parts are included in cartridge kit.

Left Cart. Kit/Right Cart. Kit [Remanufactured Cartridge L/R]

6E4268/6E3239 4525***12*(*)-****20(*)

1U3952/9J7891 4525***14*(*)-****20(*) [0R1504/0R1488]

3G7663/1U4666 4525***17*(*)-****20(*) [0R1483/0R1497]

1U2652/3G7652 4525***19*(*)-****20(*) [0R1494/0R1472]

3G2752/3G7662 4525***21*(*)-****20(*) [0R1I465/0R1I482]

2These parts are included in cartridge kit.

Left Cart. Kit/Right Cart. Kit [Remanufactured Cartridge L/R]

3G2236/3G2238 4525VQ42A-****-****20(*) [0R1455/0R1456]

3G7661/1U2670 4525VQ47A-****-****20(*) [0R1481/0R1501]

3G7660/3G7656 4525VQ50A-****-****20(*) [0R1480/0R1476]

3G7667/3G7657 4525VQ57A-****-****20(*) [0R1487/0R1477]

3G2234/1U2671 4525VQ60A-****-****20(*) [0R1454/0R1502]

4535 VQ Pumps



Illustration 30g02533662

Note: Standard right-hand shaft rotation cartridges shown. Reverse for left-hand rotation.

To reverse cartridge kit rotation, remove the two screws, and reverse the location of the inlet support plate and outlet support plate. Reinstall the two screws hand tight. Use pump cover to align all sections of the cartridge. Remove cover carefully and tighten screws to recommended torque.

MODEL CODE BREAKDOWN



Illustration 31g03115956
Model 4535 code breakdown

For satisfactory service life of these components, use full flow filtration to provide fluid which meets ISO cleanliness code 18/15 or cleaner. Selections from pressure, return, and in-line filter series are recommended.



Illustration 32g02533677
4535 exploded view.

Table 13
4535VQ VANE TYPE PUMPS 
Item  Qty.  Part No.  Description 
(1)  4J-7945  Screw 
(2)  4J-7781  Cover - (4·bolt flange) 
(3)  9T-5087  Back·up ring 
(4)  61-94571  O-ring 
(5)  3G-182O1  Seal ring 
(6)  5D-59581  O-ring 
(7)  9T-50921  Outlet Support Plate 
(8)  8C-30791  Seal Pack 
3G-12641
(9)  1U-03801  Flex Side Plate Kit
(includes two flex side plates) 
(10)  9T-51071  Rotor 
(11)  9T-50571  Vane Kit - (includes ten vanes and inserts) 
(12)  6E-32141  Ring
- 4525***12*(*)-****20(*) 
9T-50741 - 4535***25**-***20
9T-50751 - 4535***30**-***20
9T-50761 - 4535***35**-***20
9T-50771 - 4535***38**-***20
(13)  9T-5049  Inlet Support Plate 
(14)  9T-50421  Pin 
(15)  9T-5112  Screw 
(16)  8J-1578  Inlet Housing 
(17)  9T-51132  Screw 
(18)  9T-50432  Pin 
(19)  9T-50512  Inlet Support Plate (includes bushing) 
(20)  09-20622  Seal Pack 
3G-22412
(21)  1U-03812  Flex Side Plate Kit
(includes two flex side plates) 
(22)  9T-51082  Rotor 
(23)  9T-50582  Vane Kit (includes ten vanes and inserts) 
(24)  9T-50782  Ring
- 4535VQ42A**(*)-****20(*) 
9T-50812 - 4535VQ47A**(*)-****20(*)
9T-50792 - 4535VQ50A**(*)-****20(*)
9T-50822 - 4535VQ57A**(*)-****20(*)
9T-50842 - 4535VQ60A**(*)-****20(*)
(25)  9T-50952  Outlet Support Plate 
(26)  6V-11952  O-ring 
(27)  3G-22422  Seal ring 
(28)  6V-11792  O-ring 
(29)  9T-50882  Back-up ring 
(30)  3J-7719  Snap ring 
(31)  1J-6474  Retaining ring 
(32)  3L-1425  Bearing 
(33)  6E-3247  Shaft - Shaft No. 1 
6E-3248 Shaft No. 11
6E-3249 Shaft No. 86
(34)  6E-3253  Key - Str., Keyed, Standard (with shaft 6E-3247
1K-2550 Str., Keyed, Heavy Duty (with shaft 6E-3249)
(35)  2J-7763  Washer 
(36)  5P-0904  Primary Shaft Seal (wipe O.D. with oil before installation) 
(37)  54-0428  Body 
(38)  6V-2318  Secondary Shaft Seal
(use on "S" flange mounted models only) 

1These parts are included in cartridge kit.

Left Cart. Kit/Right Cart. Kit [Remanufactured Cartridge L/R]

6E4269/6E3250 4535***21**-****20(*)

6E4258/3G2834 4535***25**-****20(*) [ /0R1468]

6E4259/3G2835 4535***30**-****20(*) [/0R1469]

3G7665/3G2837 4535***35**-****20(*) [0R1485/0R1470]

3G7666/3G7664 4535***38**-****20(*) [0R1486/OR1484]

2These parts are included in cartridge kit.

Left Cart. Kit/Right Cart. Kit [Remanufactured Cartridge L/R]

3G2236/3G2238 4535VQ42A**(*)-****20(*) [0R1455/0R1456]

3G7661/1U2670 4535VQ47A**(*)-****20(*) [0R1481/0R1501]

3G7660/3G7656 4535VQ50A**(*)-****20(*) [0R1480/0R1476]

3G7667/3G7657 4535VQ57A**(*)-****20(*) [0R1454/0R1502]

3G2234/1U2671 4535VQ60A**(*)-****20(*) [0R1487/0R1477]

Caterpillar Vane Pump Shaft Reference Guide

Table 14
SHAFT REFERENCE GUIDE FOR CATERPILLAR VANE PUMPS 
Caterpillar Part No.  Shaft Length  Spline Major Diameter  External Information  Spline two Information  Spline three Information 
4D-0991  135.74 mm (5.344 inch)  25.32 mm (0.997 inch)  7 Teeth  15 Teeth 
6J-9296  136.14 mm (5.360 inch)  19.03 mm (0.749 inch)  Use Key 1B-8708  30 Teeth 
4T-9370  136.27 mm (5.365 inch)  19.03 mm (0.749 inch)  11 Teeth  30 Teeth 
1H-7057  139.70 mm (5.500 inch)  19.03 mm (0.749 inch)  11 Teeth  12 Teeth 
8F-6543  153.19 mm (6.031 inch)  19.03 mm (0.749 inch)  11 Teeth  12 Teeth 
3J-7995  160.33 mm (6.312 inch)  31.39 mm (1.236 inch)  14 Teeth  12 Teeth 
2D-0597  160.35 mm (6.313 inch)  19.05 mm (0.750 inch)  11 Teeth  12 Teeth 
4D-1509  160.35 mm (6.313 inch)  24.44 mm (0.962 inch)  11 Teeth  12 Teeth 
66-4139  171.83 mm (6.765 inch)  22.17 mm (0.873 inch)  Use Key 61-9151  30 Teeth 
8M-3961  173.03 mm (6.812 inch)  22.23 mm (0.875 inch)  Taper W/Nut  15 Teeth 
1U-4788  177.80 mm (7.000 inch)  24.03 mm (0.946 inch)  13 Teeth  40 Teeth 
6E-3207  177.80 mm (7.000 inch)  31.67 mm (1.247 inch)  Use Key 1B-8714  40 Teeth 
8J-8624  184.61 mm (7.268 inch)  25.12 mm (0.989 inch)  22 Teeth  40 Teeth 
7J-6229  185.75 mm (7.313 inch)  22.25 mm (0.876 inch)  14 Teeth  37 Teeth 
6J-5921  187.33 mm (7.375 inch)  25.12 mm (0.989 inch)  11 Teeth  40 Teeth 
6E-3206  191.67 mm mm (7.546 inch)  22.25 mm (0.876 inch)  Use Key 66-9598  40 Teeth 
9J-0442  193.32 mm (7.611 inch)  35.56 mm (1.400 inch)  22 Teeth  21 Teeth 
8J-8623  194.01 mm (7.638 inch)  24.03 mm (0.946 inch)  22 Teeth  40 Teeth 
65-8973  195.25 mm (7.687 inch)  15.88 mm (0.625 inch)  Taper W/Nut  40 Teeth 
1U-3842  199.62 mm (7.859 inch)  19.56 mm (0.770 inch)  Taper W/Nut  40 Teeth 
9J-5096  206.15 mm (8.116 inch)  31.22 mm (1.229 inch)  14 Teeth  40 Teeth 
9T-1340  207.72 mm (8.178 inch)  31.22 mm (1.229 inch)  14 Teeth  37 Teeth 
1U-3474  210.74 mm (8.297 inch)  31.22 mm (1.229 inch)  14 Teeth  40 Teeth 
4J-0974  210.82 mm (8.300 inch)  19.05 mm (0.750 inch)  Taper W/Nut  40 Teeth 
5J-3976  211.15 mm (8.313 inch)  31.14 mm (1.226 inch)  14 Teeth  15 Teeth 
6J-1714  214.33 mm (8.438 inch)  29.03 mm (1.143 inch)  13 Teeth  37 Teeth 
2D-1520  214.71 mm (8.453 inch)  19.03 mm (0.749 inch)  11 Teeth  14 Teeth  12 Teeth 
4D-6837  214.71 mm (8.453 inch)  19.03 mm (0.749 inch)  11 Teeth  12 Teeth 
8J-2098  217.53 mm (8.564 inch)  31.22 mm (1.229 inch)  14 Teeth  30 Teeth 
1U-3501  221.84 mm (8.734 inch)  19.56 mm (0.770 inch)  Taper W/Nut  40 Teeth 
3J-1443  223.85 mm (8.813 inch)  21.74 mm (0.856 inch)  Taper W/Nut  15 Teeth 
4J-2088  225.43 mm (8.875 inch)  30.48 mm (1.200 inch)  14 Teeth  37 Teeth 
9J-5090  225.43 mm (8.875 inch)  31.39 mm (1.236 inch)  14 Teeth  37 Teeth 
3D-6157  229.39 mm (9.031 inch)  31.62 mm (1.245 inch)  14 Teeth  37 Teeth 
9J-8205  232.61 mm (9.158 inch)  21.82 mm (0.859 inch)  Taper W/Nut  37 Teeth 
6E-3248  234.59 mm (9.236 inch)  31.70 mm (1.248 inch)  14 Teeth  37 Teeth 
6E-3218  234.59 mm (9.236 inch)  31.70 mm (1.248 inch)  14 Teeth  14 Teeth 
5H-3181  235.74 mm (9.281 inch)  29.26 mm (1.152 inch)  13 Teeth  13 Teeth  12 Teeth 
4J-4833  236.22 mm (9.300 inch)  29.21 mm (1.150 inch)  13 Teeth  40 Teeth 
2J-7765  237.24 mm (9.340 inch)  31.39 mm (1.236 inch)  14 Teeth  14 Teeth 
6E-3211  238.13 mm (9.375 inch)  24.13 mm (0.950 inch)  37 Teeth  14 Teeth 
9J-5093  240.49 mm (9.468 inch)  22.17 mm (0.873 inch)  13 Teeth  40 Teeth  30 Teeth 
7J-6228  240.49 mm (9.468 inch)  22.17 mm (0.873 inch)  13 Teeth  40 Teeth  30 Teeth 
4J-1399  242.34 mm (9.541 inch)  29.03 mm (1.143 inch)  13 Teeth  40 Teeth 
6J-2422  242.42 mm (9.544 inch)  31.70 mm (1.248 inch)  14 Teeth  44 Teeth 
9J-5100  245.64 mm (9.671 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth 
9M-9964  245.64 mm (9.671 inch)  31.39 mm (1.236 inch)  14 Teeth  14 Teeth 
6J-7458  249.50 mm (9.823 inch)  18.92 mm (0.745 inch)  Taper W/Nut  36 Teeth  30 Teeth 
5J-1540  253.49 mm (9.980 inch)  31.75 mm (1.250 inch)  14 Teeth  40 Teeth 
54-0430  254.38 mm (10.015 inch)  22.23 mm (0.875 inch)  Use Key 669598  40 Teeth  30 Teeth 
1U-3881  254.51 mm (10.020 inch)  31.22 mm (1.229 inch)  14 Teeth  40 Teeth  30 Teeth 
5J-1883  256.29 mm (10.090 inch)  24.87 mm (0.979 inch)  11 Teeth  40 Teeth  30 Teeth 
9J-5089  259.49 mm (10.216 inch)  18.92 mm (0.745 inch)  11 Teeth  40 Teeth  30 Teeth 
6E-3216  259.99 mm (10.236 inch)  39.80 mm (1.567 inch)  Use Key 1K2550  14 Teeth 
7J-1779  261.39 mm (10.291 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth 
9J-1277  270.64 mm (10.655 inch)  40.82 mm (1.607 inch)  16 Teeth  27 Teeth 
3K-6780  272.39 mm (10.724 inch)  31.62 mm (1.245 inch)  14 Teeth  15 Teeth  12 Teeth 
9T-7766  273.56 mm (10.770 inch)  19.05 mm (0.750 inch)  Taper W/Nut  40 Teeth  30 Teeth 
9J-5087  273.56 mm (10.770 inch)  31.70 mm (1.248 inch)  14 Teeth  40 Teeth  30 Teeth 
9J-5104  273.56 mm (10.770 inch)  31.22 mm (1.229 inch)  14 Teeth  40 Teeth  30 Teeth 
5J-2346  273.56 mm (10.770 inch)  19.05 mm (0.750 inch)  Taper W/Nut  40 Teeth  12 Teeth 
1U-3973  276.25 mm (10.876 inch)  31.22 mm (1.229 inch)  14 Teeth  37 Teeth  30 Teeth 
9J-5091  278.28 mm (10.956 inch)  31.22 mm (1.229 inch)  14 Teeth  37 Teeth  30 Teeth 
54-0427  279.35 mm (10.998 inch)  31.70 mm (1.248 inch)  14 Teeth  37 Teeth  30 Teeth 
8J-6886  280.42 mm (11.040 inch)  31.22 mm (1.229 inch)  14 Teeth  37 Teeth  40 Teeth 
9J-5086  280.44 mm (11.041 inch)  31.14 mm (1.226 inch)  14 Teeth  14 Teeth 
6E-3266  284.18 mm (11.188 inch)  31.70 mm (1.248 inch)  14 Teeth  37 Teeth  40 Teeth 
4T-5704  284.18 mm (11.188 inch)  27.48 mm (1.082 inch)  14 Teeth  37 Teeth  40 Teeth 
4K-0411  287.07 mm (11.302 inch)  31.22 mm (1.229 inch)  14 Teeth  37 Teeth  12 Teeth 
3G-4097  287.07 mm (11.302 inch)  31.22 mm (1.229 inch)  14 Teeth  37 Teeth  12 Teeth 
6J-1014  292.89 mm (11.531 inch)  43.71 mm (1.721 inch)  13 Teeth  43 Teeth 
4J-3449  293.14 mm (11.541 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth 
65-8094  293.62 mm (11.560 inch)  31.75 mm (1.250 inch)  Use Key 6E-3251  37 Teeth  12 Teeth 
5J-1571  297.69 mm (11.720 inch)  31.22 mm (1.229 inch)  14 Teeth  37 Teeth  40 Teeth 
9J-5101  297.69 mm (11.720 inch)  31.22 mm (1.229 inch)  14 Teeth  37 Teeth  40 Teeth 
9J-5095  297.99 mm (11.732 inch)  31.22 mm (1.229 inch)  14 Teeth  37 Teeth  30 Teeth 
6E-3237  298.45 mm (11.750 inch)  19.05 mm (0.750 inch)  Use Key 6E-3251  37 Teeth  40 Teeth 
3J-9003  300.58 mm (11.834 inch)  43.64 mm (1.718 inch)  13 Teeth  14 Teeth 
6E-3236  308.86 mm (12.160 inch)  30.61 mm (1.205 inch)  Use Key 6E-3252  37 Teeth  30 Teeth 
9J-5085  308.86 mm (12.160 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth  30 Teeth 
1U-3883  310.90 mm (12.240 inch)  31.22 mm (1.229 inch)  14 Teeth  37 Teeth  40 Teeth 
6E-3238  311.15 mm (12.250 inch)  34.90 mm (1.374 inch)  Use Key 6E-3252  37 Teeth  40 Teeth 
6E-3242  312.50 mm (12.303 inch)  31.70 mm (1.248 inch)  14 Teeth  14 Teeth  30 Teeth 
6E-3240  312.50 mm (12.303 inch)  31.75 mm (1.250 inch)  Use Key 6E-3253  14 Teeth  30 Teeth 
3G-1855  319.53 mm (12.580 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth  40 Teeth 
9J-5092  319.53 mm (12.580 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth  40 Teeth 
3K-8250  319.79 mm (12.590 inch)  31.62 mm (1.245 inch)  14 Teeth  14 Teeth  12 Teeth 
3G-4092  319.79 mm (12.590 inch)  31.62 mm (1.245 inch)  14 Teeth  14 Teeth  12 Teeth 
6E-3245  323.09 mm (12.720 inch)  31.70 mm (1.248 inch)  14 Teeth  14 Teeth  40 Teeth 
6E-3244  323.09 mm (12.720 inch)  31.75 mm (1.250 inch)  Use Key 6E-3253  14 Teeth  40 Teeth 
9J-5094  328.17 mm (12.920 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth  30 Teeth 
8J-6887  329.44 mm (12.970 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth  37 Teeth 
9J-5097  329.69 mm (12.980 inch)  31.22 mm (1.229 inch)  14 Teeth  37 Teeth  40 Teeth 
4J-3428  330.71 mm (13.020 inch)  29.11 mm (1.146 inch)  13 Teeth  14 Teeth  40 Teeth 
9J-5099  330.96 mm (13.030 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth  37 Teeth 
6E-3217  335.79 mm (13.220 inch)  31.57 mm (1.243 inch)  14 Teeth  14 Teeth  37 Teeth 
6E-3247  335.79 mm (13.220 inch)  31.75 mm (1.250 inch)  Use Key 6E-3253  14 Teeth  37 Teeth 
6E-3241  337.90 mm (13.303 inch)  38.08 mm (1.499 inch)  Use Key 1K-2550  14 Teeth  30 Teeth 
5J-1219  338.58 mm (13.330 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth  40 Teeth 
9J-5102  338.84 mm (13.340 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth  40 Teeth 
6E-3246  348.49 mm (13.720 inch)  37.82 mm (1.489 inch)  Use Key 1K-2550  14 Teeth  40 Teeth 
9J-5088  351.54 mm (13.840 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth  37 Teeth 
9J-5098  351.54 mm (13.840 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth  37 Teeth 
3J-9288  352.55 mm (13.880 inch)  44.32 mm (1.745 inch)  13 Teeth  16 Teeth 
6E-3249  361.19 mm (14.220 inch)  32.84 mm (1.293 inch)  Use Key 1K-2550  14 Teeth  37 Teeth 
3J-8916  362.71 mm (14.280 inch)  44.32 mm (1.745 inch)  13 Teeth  13 Teeth 
3J-0637  377.83 mm (14.875 inch)  60.33 mm (2.375 inch)  16 Teeth  18 Teeth 
4J-6789  381.61 mm (15.024 inch)  31.14 mm (1.226 inch)  14 Teeth  14 Teeth  40 Teeth 
9T-3067  382.25 mm (15.049 inch)  31.22 mm (1.229 inch)  14 Teeth  40 Teeth  30 Teeth 
4T-9367  411.02 mm (16.182 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth  40 Teeth & 11 Teeth 
4T-2111  414.15 mm (16.305 inch)  31.22 mm (1.229 inch)  14 Teeth  37 Teeth  40 Teeth & 23 Teeth 
1U-3516  475.74 mm (18.730 inch)  31.22 mm (1.229 inch)  14 Teeth  14 Teeth  37 Teeth & 23 Teeth 

VQ Vane Pump Cartridge Reference Guide

Table 15
VQ Vane Pump Cartridge Reference Guide 
New Cartridge Part No.  Rotation  GPM  Bushing  Reman Cartridge Part No. 
20VQ PUMP SERIES 
3G-2722  Left  Series 5  No  OR-1461 
6E-3229  Right  Series 5  No 
3G-2749  Left  Series 8  No  OR-1463 
1U-2664  Right  Series 8  No  OR-1495 
3G-2719  Left  Series 9  No  OR-1459 
6E-3221  Right  Series 9  No 
3G-2720  Left  Series 11  No  OR-1460 
3G-2751  Right  Series 11  No  OR-1464 
3G-7659  Left  Series 12  No  OR-1479 
4T-3196  Right  Series 12  No  OR-1493 
3G-7658  Left  Series 14  No  OR-1478 
1U-2665  Right  Series 14  No  OR-1496 
25VQ PUMP SERIES 
3G-2717  Left  Series 12  Yes  OR-1457 
1U-3519  Right  Series 12  Yes  OR-1503 
3G-7653  Left  Series 14  Yes  OR-1473 
3G-2200  Right  Series 14  Yes  OR-1453 
3G-7654  Left  Series 17  Yes  OR-1474 
3G-2195  Right  Series 17  Yes  OR-1451 
3G-2718  Left  Series 19  Yes  OR-1458 
3G-2196  Right  Series 19  Yes  OR-1452 
3G-7655  Left  Series 21  Yes  OR-1475 
1U-2668  Right  Series 21  No  OR-1499 
6E-4268  Left  Series 12  No 
6E-3239  Right  Series 12  No 
1U-3952  Left  Series 14  No  OR-1504 
9J-7891  Right  Series 14  No  OR-1488 
3G-7663  Left  Series 17  No  OR-1483 
1U-2666  Right  Series 17  No  OR-1497 
1U-2652  Left  Series 19  No  OR-1494 
3G-7652  Right  Series 19  No  OR-1472 
3G-2752  Left  Series 21  No  OR-1465 
3G-7662  Right  Series 21  No  OR-1482 
30VQ PUMP SERIES 
3G-2807  Left  Series 24  Yes  OR-1467 
3G-2806  Right  Series 24  Yes  OR-1466 
6E-4265  Left  Series 28  Yes 
6E-3209  Right  Series 28  Yes 
6E-4266  Left  Series 21  Yes 
6E-3210  Right  Series 21  Yes 
4T-6869  Left  Series 25  Yes  OR-1462 
3G-1267  Right  Series 25  Yes  OR-1448 
9T-2200  Left  Series 30  Yes  OR-1450 
3G-1266  Right  Series 30  Yes  OR-1447 
4T-1893  Left  Series 35  Yes  OR-1491 
3G-7651  Right  Series 35  Yes  OR-1471 
1U-3953  Left  Series 38  Yes  OR-1505 
1U-2669  Right  Series 38  Yes  OR-1500 
6E-4269  Left  Series 21  No 
6E-3250  Right  Series 21  No 
6E-4258  Left  Series 25  No 
3G-2834  Right  Series 25  No  OR-1468 
6E-4259  Left  Series 30  No 
3G-2835  Right  Series 30  No  OR-1469 
3G-7665  Left  Series 35  No  OR-1485 
3G-2837  Right  Series 35  No  OR-1470 
3G-7666  Left  Series 38  No  OR-1486 
3G-7664  Right  Series 38  No  OR-1484 
45VQ PUMP SERIES 
3G-2236  Left  Series 42  Yes  OR-1455 
3G-2238  Right  Series 42  Yes  OR-1456 
3G-7661  Left  Series 47  Yes  OR-1481 
1U-2670  Right  Series 47  Yes  OR-1501 
3G-7660  Left  Series 50  Yes  OR-1480 
3G-7656  Right  Series 50  Yes  OR-1476 
3G-7667  Left  Series 57  Yes  OR-1487 
3G-7657  Right  Series 57  Yes  OR-1477 
3G-2234  Left  Series 60  Yes  OR-1454 
1U-2671  Right  Series 60  Yes  OR-1502 
21VQ1 PUMP SERIES 
6E-4267  Left  Series 5  No 
6E-3235  Right  Series 5  No 
6E-4261  Left  Series 8  No 
6E-3231  Right  Series 8  No 
6E-4260  Left  Series 9  No 
6E-3230  Right  Series 9  No 
6E-4262  Left  Series 11  No 
6E-3232  Right  Series 11  No 
6E-4263  Left  Series 12  No 
6E-3233  Right  Series 12  No 
6E-4264  Left  Series 14  No 
6E-3234  Right  Series 14  No 

121VQ Cartridges are replacement cartridges for 2521 and 3521 Vane Pump Groups.

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