- Engine:
- 3512B (S/N: 4AW1-UP; CTB1-UP)
- Petroleum Engine:
- 3512C PETROLEUM (S/N: LLA1-UP)
Introduction
This Special Instruction is intended to provide information on the Engine Overhaul Kit Consist and detailed information on specific parts that should be used based on engine arrangements.
This Engine Overhaul Kit may contain extra parts and extra quantities due to the variety of engine arrangements assigned to a given kit. Refer to the corresponding Parts Manual or Disassembly and Assembly manual in Table 1.
Note: This Kit may contain upgraded parts. These upgraded part numbers may be different than what you have in the parts manual or engine, but these parts have been technically reviewed for compatibility with your application.
Note: This kit contains gasket kits and includes additional parts needed to perform an engine overhaul.
Note: This kit does not contain main bearings, rod bearings, and thrust plates.
Note: For assistance with technical questions, contact your local Cat dealer.
Reference Material
Engine Model     | Engine Arrangement     | Engine Serial Number Prefix     | Parts Book Media     | Disassembly and Assembly Media     |
3512B     | 174-4950     | S/N:4AW     | SEBP2735     | SENR6564     |
203-3130 | S/N:CTB     | SEBP3451     | ||
3512C     | 250-7623     | S/N:LLA     | SEBP4364     | RENR9365     |
Note: For ordering reference material contact your local Cat dealer.
3512B and 3512C 440-0216 Major Overhaul Kit Consist
440-0216 Major Overhaul Kit Consist     | ||
Gasket Kits     | ||
Part Number     | Part Name     | Qty     |
355-0776     | Single Cylinder Head Gasket Kit     | 12     |
175-6618     | After Cooler and Lines Gasket Kit     | 1     |
426-0447     | Oil Cooler and Lines Gasket Kit     | 1     |
437-8540     | Turbocharger Installation Kit     | 2     |
423-9461     | Rear Structure     | 1     |
434-6514     | Front Structure     | 1     |
435-3163     | Central and Lower Structure     | 1     |
Additional Parts Included in This Kit     | ||
Part Number     | Part Name     | Qty     |
1J-9671     | O-Ring Seal     | 1     |
1R-0726     | Engine Oil Filter Element As     | 3     |
1R-0756     | Fuel Filter     | 5     |
2W-1635     | Spring     | 2     |
2W-1969     | Bypass Valve     | 2     |
3K-0360     | O-Ring Seal     | 2     |
3S-9643     | Lip Type Seal     | 6     |
4W-0530     | Retaining Ring     | 3     |
4W-3027     | Breather As     | 3     |
4W-3100     | Gasket     | 1     |
5D-5957     | O-Ring Seal     | 2     |
5M-2894     | Hard Washer     | 1     |
5N-1940     | Gasket     | 1     |
6B-9202     | Spring     | 2     |
6V-1454     | O-Ring Seal     | 4     |
6V-4589     | O-Ring Seal     | 6     |
6V-5048     | O-Ring Seal     | 4     |
6V-5054     | O-Ring Seal     | 2     |
6V-5064     | O-Ring Seal     | 2     |
6V-9027     | O-Ring Seal     | 2     |
7E-6016     | Gasket     | 4     |
7N-4782     | Lifter Guide Spring     | 24     |
7N-4927     | Housing Cover Gasket     | 1     |
7N-6806     | Rectangular Seal     | 4     |
8C-3445     | Dust Cap     | 1     |
8L-2786     | O-Ring Seal     | 1     |
8T-5452     | O-Ring Seal     | 1     |
9F-7707     | Retaining Ring     | 36     |
9L-7373     | High Temperature Bolt     | 48     |
9X-7523     | Seal     | 2     |
9Y-8389     | Gasket     | 1     |
033-6031     | O-Ring Seal     | 3     |
101-1198     | Camshaft Bearing     | 14     |
109-7411     | O-Ring Seal     | 2     |
111-4374     | Vent Line As     | 1     |
114-5477     | Valve Plunger     | 1     |
116-1365     | Bushing     | 2     |
122-8856     | Gasket     | 2     |
127-5400     | Bushing     | 3     |
149-5462     | O-Ring Seal     | 1     |
153-9963     | Ring     | 1     |
154-6389     | Button     | 36     |
214-7568     | O-Ring Seal     | 1     |
219-3240     | Temperature Regulator     | 2     |
235-3546     | O-Ring Seal     | 1     |
238-5080     | O-Ring Seal     | 1     |
238-5081     | O-Ring Seal     | 9     |
248-5513     | Temperature Regulator     | 4     |
Note: For assistance or technical questions contact your local Cat dealer.
Note: Refer to Illustration 1 for location of gasket kits.
3512B and 3512C Engine Gasket Kit Locations
Illustration 1 | g03432337 |
(1) Turbocharger Installation ( 437-8540 Gasket Kit ) (2) Rear Structure ( 423-9461 Gasket Kit ) (3) Central and Lower Structure ( 435-3163 Gasket Kit ) (4) Front Structure ( 434-6514 Gasket Kit ) (5) Oil Cooler and Lines ( 426-0447 Gasket Kit ) (6) Single Cylinder Head ( 355-0776 Gasket Kit ) (7) Aftercooler and Lines ( 175-6618 Gasket Kit ) |
Gasket Kit Consists
Single Cylinder Head (355-0776 Gasket Kit)
355-0776 Gasket Kit (Single Cylinder Head)     | ||
Part Number     | Part Name     | Qty     |
4S-5898     | O-Ring Seal     | 1     |
5P-0840     | O-Ring Seal     | 2     |
5P-7530     | O-Ring Seal     | 1     |
6J-2245     | O-Ring Seal     | 1     |
6V-5101     | O-Ring Seal     | 1     |
6V-6228     | O-Ring Seal     | 3     |
6V-9769     | O-Ring Seal     | 2     |
7N-5080     | Manifold Gasket     | 1     |
7N-6806     | Rectangular Seal     | 1     |
110-6991     | Cylinder Head Gasket     | 1     |
122-8856     | Gasket     | 1     |
127-2176     | Integral Seal     | 1     |
144-5692     | Plate Gasket     | 1     |
214-7568     | O-Ring Seal     | 1     |
240-7032     | Seal     | 1     |
241-5928     | Gasket     | 1     |
243-2288     | Gasket     | 1     |
272-0760     | Valve Cover Seal     | 1     |
320-8974     | Exhaust Manifold Gasket     | 1     |
420-0652     | Water Seal Assembly     | 4     |
420-0653     | Water Seal Assembly     | 4     |
Refer to Illustration 1.
Aftercooler and Lines ( 175-6618 Gasket Kit )
175-6618 Gasket Kit (Aftercooler and Lines)     | ||
Part Number     | Part Name     | Qty     |
3J-7354     | O-Ring Seal     | 2     |
3K-0360     | O-Ring Seal     | 1     |
4W-0530     | Retaining Ring     | 2     |
5B-4399     | O-Ring Seal     | 1     |
6J-2680     | O-Ring Seal     | 2     |
6V-3917     | O-Ring Seal     | 4     |
6V-5103     | O-Ring Seal     | 4     |
6V-9027     | O-Ring Seal     | 1     |
8T-1919     | O-Ring Seal     | 2     |
107-3759     | Seal     | 2     |
109-7411     | O-Ring Seal     | 2     |
Refer to Illustration 1.
Oil Cooler and Lines (426-0447 Gasket Kit)
426-0447 Gasket Kit (Oil Cooler and Lines)     | ||
Part Name     | Part Number     | Qty     |
3P-0655     | O-Ring Seal     | 3     |
4B-8407     | Copper Gasket     | 1     |
4N-1320     | Gasket     | 2     |
5D-5957     | O-Ring Seal     | 1     |
5P-4892     | O-Ring Seal     | 7     |
5P-5846     | O-Ring Seal     | 1     |
6V-3907     | O-Ring Seal     | 4     |
6V-3908     | O-Ring Seal     | 1     |
6V-4589     | O-Ring Seal     | 5     |
6V-5048     | O-Ring Seal     | 8     |
6V-5066     | O-Ring Seal     | 5     |
6V-6609     | O-Ring Seal     | 2     |
6V-8001     | O-Ring Seal     | 1     |
7N-4945     | Gasket     | 1     |
8L-2786     | O-Ring Seal     | 1     |
8N-1991     | Retaining Ring     | 2     |
061-9456     | O-Ring Seal     | 4     |
109-2332     | O-Ring Seal     | 8     |
111-3820     | Retaining Ring     | 1     |
228-7097     | O-Ring Seal     | 1     |
247-3796     | Gasket     | 2     |
Refer to Illustration 1.
Turbocharger Installation (437-8540 Gasket Kit)
437-8540 Gasket Kit (Turbocharger Installation)     | ||
Part Number     | Part Name     | Qty     |
2N-2765     | High Temperature Bolt     | 4     |
2N-2766     | Locknut     | 4     |
3K-0360     | O-Ring Seal     | 4     |
4P-4460     | Gasket     | 2     |
6V-4589     | O-Ring Seal     | 2     |
6V-6609     | O-Ring Seal     | 3     |
7M-8485     | O-Ring Seal     | 1     |
7N-7559     | Gasket     | 1     |
8L-2786     | O-Ring Seal     | 1     |
121-5736     | Gasket     | 1     |
180-8424     | O-Ring Seal     | 2     |
207-1354     | Exhaust Manifold Gasket     | 2     |
252-8374     | Gasket     | 1     |
341-9211     | Gasket     | 4     |
Refer to Illustration 1.
Rear Structure (423-9461 Gasket Kit)
423-9461 Gasket Kit (Rear Structure)     | ||
Part Number     | Part Name     | Qty     |
4B-8407     | Copper Gasket     | 4     |
4H-7869     | Gasket     | 3     |
5F-9657     | O-Ring Seal     | 2     |
5P-9890     | O-Ring Seal     | 4     |
6V-3348     | O-Ring Seal     | 4     |
7N-3368     | Gasket     | 1     |
7N-4320     | Gasket     | 2     |
7X-4805     | O-Ring Seal     | 1     |
113-8433     | Crankshaft Seal Gp     | 1     |
234-8937     | Integral Seal     | 2     |
252-8374     | Gasket     | 2     |
7N-3049     | Flywheel Housing Gasket     | See Note     |
Note: 7N-3049 Flywheel Housing Gasket is not included in this kit. Caterpillar recommends using Loctite Hi-Temp Flange Sealant in place of the gasket. The sealant must be ordered separately from Loctite. For applications in Europe, Africa and the Middle East, use Loctite 5188. For more information, visit:
http://www.useloctite.com/caterpillarRefer to Illustration 1
Front Structure (434-6514 Gasket Kit)
434-6514 Gasket Kit (Front Structure)     | ||
Part Number     | Part Name     | Qty     |
1H-9696     | O-Ring Seal     | 1     |
1S-5772     | Gasket     | 1     |
4N-1320     | Gasket     | 2     |
5F-9657     | O-Ring Seal     | 2     |
5H-6734     | O-Ring Seal     | 1     |
5P-0840     | O-Ring Seal     | 3     |
5P-6302     | O-Ring Seal     | 1     |
5R-7136     | Seal Washer     | 4     |
5R-7137     | Seal Washer     | 4     |
6V-3348     | O-Ring Seal     | 7     |
6V-5066     | O-Ring Seal     | 4     |
6V-6809     | O-Ring Seal     | 1     |
7N-3049     | Gasket     | 1     |
7N-3368     | Gasket     | 1     |
7N-4932     | Gasket     | 1     |
8N-3640     | Retaining Ring     | 2     |
8N-9885     | Cover Gasket     | 2     |
9X-7371     | O-Ring Seal     | 1     |
113-8432     | Crankshaft Seal Gp     | 1     |
235-3546     | O-Ring Seal     | 4     |
259-4598     | O-Ring Seal     | 6     |
298-6387     | O-Ring Seal     | 1     |
Refer to Illustration 1.
Central and Lower Structure (435-3163 Gasket Kit)
435-3163 Gasket Kit (Central and Lower Structure)     | ||
Part Number     | Part Name     | Qty     |
2W-0752     | Gasket     | 2     |
3P-0654     | O-Ring Seal     | 3     |
3P-6061     | Gasket     | 1     |
4F-7387     | O-Ring Seal     | 1     |
5P-7818     | O-Ring Seal     | 1     |
5P-8210     | O-Ring Seal     | 2     |
5P-8872     | O-Ring Seal     | 1     |
6F-4868     | Gasket     | 2     |
6V-5101     | O-Ring Seal     | 2     |
7E-2630     | Oil Pan Gasket     | 1     |
7N-4945     | Gasket     | 3     |
7X-1547     | O-Ring Seal     | 2     |
7X-4805     | O-Ring Seal     | 3     |
8C-3445     | Dust Cap     | 1     |
8T-2928     | O-Ring Seal     | 3     |
8T-2929     | O-Ring Seal     | 3     |
9L-1480     | Gasket     | 3     |
125-9794     | O-Ring Seal     | 1     |
214-7568     | O-Ring Seal     | 6     |
230-1072     | Gasket     | 2     |
272-0758     | Seal     | 12     |
272-0759     | Seal     | 12     |
Refer to Illustration 1.