- Engine:
- 3512B (S/N: 2AF1-UP)
- Pumper:
- SPF343 (S/N: 3KD1-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     | 173-2948     | S/N:2AF     | SEBP3137     | SENR6564     |
173-2949 | S/N:3KD     | SEBP3138     |
Note: For ordering reference material contact your local Cat dealer.
3512B 440-1753 Major Overhaul Kit Consist
440-1753 Major Overhaul Kit Consist     | ||
Gasket Kits     | ||
Part Number     | Part Name     | Qty     |
355-0773     | Single Cylinder Head Gasket Kit     | 12     |
441-5230     | After Cooler and Lines Gasket Kit     | 1     |
440-0817     | Oil Cooler and Lines Gasket Kit     | 1     |
439-0457     | Turbocharger Installation Kit     | 2     |
438-9575     | Rear Structure     | 1     |
440-0757     | Central and Lower Structure     | 1     |
440-0769     | Front Structure     | 1     |
Additional Parts Included in This Kit     | ||
Part Number     | Part Name     | Qty     |
1P-1367     | Plunger     | 3     |
1R-0755     | Fuel Filter     | 2     |
2K-8198     | O-Ring Seal     | 4     |
2W-1635     | Spring     | 1     |
2W-1969     | Bypass Valve     | 1     |
3J-1907     | O-Ring Seal     | 3     |
3J-6933     | Gasket     | 4     |
3K-0360     | O-Ring Seal     | 3     |
3S-9643     | Lip Type Seal     | 6     |
4W-3027     | Breather As     | 3     |
4W-3100     | Gasket     | 1     |
5P-6302     | O-Ring Seal     | 1     |
6B-9202     | Spring     | 2     |
6V-1454     | O-Ring Seal     | 2     |
6V-3908     | O-Ring Seal     | 1     |
6V-5048     | O-Ring Seal     | 2     |
6V-5054     | O-Ring Seal     | 2     |
6V-9027     | O-Ring Seal     | 3     |
7N-4782     | Lifter Guide Spring     | 24     |
7N-4927     | Housing Cover Gasket     | 1     |
7N-6806     | Rectangular Seal     | 4     |
7S-8767     | Gasket     | 4     |
8N-1991     | Retaining Ring     | 1     |
8T-5452     | O-Ring Seal     | 1     |
9Y-8389     | Gasket     | 1     |
033-6031     | O-Ring Seal     | 3     |
101-1198     | Camshaft Bearing     | 14     |
111-3820     | Retaining Ring     | 2     |
114-5477     | Valve Plunger     | 1     |
122-8856     | Gasket     | 2     |
127-5400     | Bushing     | 1     |
140-9597     | Bushing     | 2     |
149-5462     | O-Ring Seal     | 1     |
154-6389     | Button     | 36     |
219-3240     | Temperature Regulator     | 2     |
237-7623     | O-Ring Seal     | 2     |
238-5080     | O-Ring Seal     | 2     |
238-5081     | O-Ring Seal     | 6     |
248-5513     | Temperature Regulator     | 4     |
275-2604     | Engine Oil Filter     | 3     |
340-1591     | Ring     | 2     |
361-7097     | Ring     | 1     |
Note: For assistance or technical questions contact your local Cat dealer.
Note: Refer to Illustration 1 for location of gasket kits.
3512B Engine Gasket Kit Locations
Illustration 1 | g03432337 |
(1) Turbocharger Installation ( 439-0457 Gasket Kit ) (2) Rear Structure ( 440-0757 Gasket Kit ) (3) Central and Lower Structure ( 433-9305 Gasket Kit ) (4) Front Structure ( 440-0769 Gasket Kit ) (5) Oil Cooler and Lines ( 440-0817 Gasket Kit ) (6) Single Cylinder Head ( 355-0773 Gasket Kit ) (7) Aftercooler and Lines ( 441-5230 Gasket Kit ) |
Gasket Kit Consists
Single Cylinder Head (355-0773 Gasket Kit)
355-0773 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     | 2     |
229-5332     | Seal     | 1     |
240-7032     | Seal     | 1     |
241-5928     | Gasket     | 1     |
243-2288     | Gasket     | 1     |
272-0760     | Valve Cover Seal     | 1     |
420-0652     | Water Seal Assembly     | 4     |
420-0653     | Water Seal Assembly     | 4     |
Refer to Illustration 1.
Aftercooler and Lines ( 441-5230 Gasket Kit )
441-5230 Gasket Kit (Aftercooler and Lines)     | ||
Part Number     | Part Name     | Qty     |
3J-7354     | O-Ring Seal     | 2     |
4W-0530     | Retaining Ring     | 2     |
5B-4399     | O-Ring Seal     | 1     |
6J-2680     | O-Ring Seal     | 2     |
6V-5064     | O-Ring Seal     | 2     |
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     | 4     |
Refer to Illustration 1.
Oil Cooler and Lines (440-0817 Gasket Kit)
440-0817 Gasket Kit (Oil Cooler and Lines)     | ||
Part Name     | Part Number     | Qty     |
3P-0655     | O-Ring Seal     | 2     |
4B-8407     | Copper Gasket     | 1     |
5P-5846     | O-Ring Seal     | 1     |
6V-3908     | O-Ring Seal     | 1     |
6V-4589     | O-Ring Seal     | 2     |
6V-5048     | O-Ring Seal     | 4     |
6V-5066     | O-Ring Seal     | 3     |
6V-6609     | O-Ring Seal     | 2     |
7N-4945     | Gasket     | 1     |
8L-2786     | O-Ring Seal     | 1     |
109-2332     | O-Ring Seal     | 6     |
247-3796     | Gasket     | 2     |
Refer to Illustration 1.
Turbocharger Installation (439-0457 Gasket Kit)
439-0457 Gasket Kit (Turbocharger Installation)     | ||
Part Number     | Part Name     | Qty     |
2N-2765     | High Temperature Bolt     | 4     |
2N-2766     | Locknut     | 4     |
3J-1907     | O-Ring Seal     | 2     |
4P-4460     | Gasket     | 1     |
5P-9890     | O-Ring Seal     | 2     |
6V-3917     | O-Ring Seal     | 2     |
6V-4589     | O-Ring Seal     | 2     |
6V-6609     | O-Ring Seal     | 4     |
7N-7559     | Gasket     | 1     |
8L-2786     | O-Ring Seal     | 2     |
121-5736     | Gasket     | 1     |
341-9211     | Gasket     | 4     |
Refer to Illustration 1.
Rear Structure (438-9575 Gasket Kit)
438-9575 Gasket Kit (Rear Structure)     | ||
Part Number     | Part Name     | Qty     |
2J-6274     | O-Ring Seal     | 1     |
3K-0360     | O-Ring Seal     | 2     |
4B-8407     | Copper Gasket     | 5     |
4H-7869     | Gasket     | 3     |
5F-9657     | O-Ring Seal     | 2     |
6V-3348     | O-Ring Seal     | 4     |
7N-3368     | Gasket     | 1     |
7N-4320     | Gasket     | 2     |
7X-4805     | O-Ring Seal     | 1     |
9L-2662     | Gasket     | 1     |
113-8433     | Crankshaft Seal Gp     | 1     |
234-8937     | Integral Seal     | 1     |
252-8374     | Gasket     | 2     |
309-4550     | Flywheel Housing Gasket     | See Note     |
Note: 309-4550 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
Central and Lower Structure (440-0757 Gasket Kit)
440-0757 Gasket Kit (Central and Lower Structure)     | ||
Part Number     | Part Name     | Qty     |
2M-9780     | O-Ring Seal     | 1     |
2W-0752     | Gasket     | 2     |
3P-0654     | O-Ring Seal     | 2     |
3P-0655     | O-Ring Seal     | 2     |
4F-3765     | Shaft Gasket     | 1     |
5P-4892     | O-Ring Seal     | 2     |
5P-5700     | O-Ring Seal     | 4     |
5P-8068     | O-Ring Seal     | 1     |
5P-8210     | O-Ring Seal     | 3     |
6F-4868     | Gasket     | 1     |
6V-4314     | O-Ring Seal     | 2     |
6V-4315     | O-Ring Seal     | 2     |
6V-4368     | O-Ring Seal     | 4     |
6V-4589     | O-Ring Seal     | 2     |
6V-5048     | O-Ring Seal     | 4     |
6V-5101     | O-Ring Seal     | 1     |
7E-2630     | Oil Pan Gasket     | 1     |
7N-3368     | Gasket     | 1     |
7N-4945     | Gasket     | 3     |
7X-4805     | O-Ring Seal     | 3     |
8T-2928     | O-Ring Seal     | 3     |
8T-2929     | O-Ring Seal     | 3     |
9Y-8387     | Gasket     | 3     |
9Y-8388     | Gasket     | 3     |
109-2332     | O-Ring Seal     | 3     |
142-4159     | Integral Seal     | 1     |
214-7568     | O-Ring Seal     | 6     |
228-7097     | O-Ring Seal     | 1     |
230-1072     | Gasket     | 2     |
272-0758     | Seal     | 12     |
272-0759     | Seal     | 12     |
Refer to Illustration 1.
Front Structure (440-0769 Gasket Kit)
440-0769 Gasket Kit (Front Structure)     | ||
Part Number     | Part Name     | Qty     |
1H-9696     | O-Ring Seal     | 1     |
1S-5772     | Gasket     | 1     |
3P-6061     | Gasket     | 1     |
4H-7869     | Gasket     | 1     |
4N-1320     | Gasket     | 1     |
4W-0530     | Retaining Ring     | 2     |
5F-9657     | O-Ring Seal     | 2     |
5H-6734     | O-Ring Seal     | 1     |
5P-0840     | O-Ring Seal     | 3     |
5R-7136     | Seal Washer     | 2     |
5R-7137     | Seal Washer     | 4     |
6J-2680     | O-Ring Seal     | 1     |
6V-3348     | O-Ring Seal     | 7     |
6V-5066     | O-Ring Seal     | 3     |
6V-6609     | O-Ring Seal     | 2     |
6V-6809     | O-Ring Seal     | 1     |
7N-3049     | Gasket     | 1     |
7N-3368     | Gasket     | 1     |
7N-4932     | Gasket     | 1     |
7N-4945     | Gasket     | 1     |
8N-9885     | Cover Gasket     | 2     |
8T-1919     | O-Ring Seal     | 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.