- Pumper:
- SPF343C (S/N: R2A1-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 |
| 3512 | 283-9472 | S/N:R2A | SEBP4372 | UENR3312 |
Note: For ordering reference material contact your local Cat dealer.
3512 440-0842 Major Overhaul Kit Consist
| 440-0842 Major Overhaul Kit Consist | ||
| Gasket Kits | ||
| Part Number | Part Name | Qty |
| 355-0776 | Single Cylinder Head Gasket Kit | 12 |
| 438-9634 | After Cooler and Lines Gasket Kit | 1 |
| 438-9424 | Oil Cooler and Lines Gasket Kit | 1 |
| 439-0457 | Turbocharger Installation Kit | 4 |
| 425-9351 | Front Structure | 1 |
| 438-9354 | Central and Lower Structure | 1 |
| 438-9575 | Rear Structure | 1 |
| Additional Parts Included in This Kit | ||
| Part Number | Part Name | Qty |
| 0S-1591 | Bolt | 16 |
| 1R-0755 | Fuel Filter | 2 |
| 2K-8198 | O-Ring Seal | 4 |
| 2W-1635 | Spring | 2 |
| 2W-1969 | Bypass Valve | 2 |
| 3J-1907 | O-Ring Seal | 3 |
| 3J-7354 | O-Ring Seal | 1 |
| 3K-0360 | O-Ring Seal | 1 |
| 3S-9643 | Lip Type Seal | 4 |
| 4P-7680 | Spacer | 4 |
| 4W-3027 | Breather As | 3 |
| 5P-3345 | Bolt | 16 |
| 5P-3875 | Bolt | 44 |
| 5P-3961 | Bolt | 4 |
| 5P-6302 | O-Ring Seal | 1 |
| 6B-9202 | Spring | 2 |
| 6V-1943 | High Temperature Bolt | 8 |
| 6V-4589 | O-Ring Seal | 3 |
| 6V-5048 | O-Ring Seal | 1 |
| 6V-5064 | O-Ring Seal | 2 |
| 6V-5066 | O-Ring Seal | 1 |
| 6V-6609 | O-Ring Seal | 2 |
| 6V-6809 | O-Ring Seal | 1 |
| 6V-9027 | O-Ring Seal | 2 |
| 7G-6713 | Spring | 3 |
| 7N-4782 | Lifter Guide Spring | 24 |
| 7N-4927 | Housing Cover Gasket | 1 |
| 7N-5057 | Gasket | 1 |
| 7N-6806 | Rectangular Seal | 4 |
| 8T-5452 | O-Ring Seal | 1 |
| 9F-7707 | Retaining Ring | 36 |
| 9S-8752 | Full Nut | 16 |
| 9Y-8389 | Gasket | 1 |
| 033-6031 | O-Ring Seal | 3 |
| 101-1198 | Camshaft Bearing | 14 |
| 111-1349 | Gasket | 1 |
| 114-5477 | Valve Plunger | 1 |
| 127-5400 | Bushing | 2 |
| 127-8269 | Exhaust Seal | 8 |
| 140-9597 | Bushing | 2 |
| 149-5462 | O-Ring Seal | 1 |
| 153-9963 | Ring | 2 |
| 154-6389 | Button | 36 |
| 203-2163 | Spacer | 44 |
| 214-7566 | O-Ring Seal | 1 |
| 236-1637 | Seal | 4 |
| 236-1655 | Exhaust Manifold Gasket | 4 |
| 238-5080 | O-Ring Seal | 2 |
| 238-5081 | O-Ring Seal | 9 |
| 245-3512 | Gasket | 2 |
| 248-5513 | Temperature Regulator | 4 |
| 260-9152 | Check Valve | 1 |
| 275-2604 | Engine Oil Filter | 3 |
| 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.
3512 Engine Gasket Kit Locations
 | |
| Illustration 1 | g03432337 |
(1) Turbocharger Installation ( 439-0457 Gasket Kit ) (2) Rear Structure ( 438-9575 Gasket Kit ) (3) Central and Lower Structure ( 438-9354 Gasket Kit ) (4) Front Structure ( 425-9351 Gasket Kit ) (5) Oil Cooler and Lines ( 438-9424 Gasket Kit ) (6) Single Cylinder Head ( 355-0776 Gasket Kit ) (7) Aftercooler and Lines ( 438-9634 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 ( 438-9634 Gasket Kit )
| 438-9634 Gasket Kit (Aftercooler and Lines) | ||
| Part Number | Part Name | Qty |
| 3K-0360 | O-Ring Seal | 1 |
| 229-5332 | Seal | 1 |
| 255-6264 | Gasket | 1 |
| 303-1541 | O-Ring Seal | 1 |
Refer to Illustration 1.
Oil Cooler and Lines (438-9424 Gasket Kit)
| 438-9424 Gasket Kit (Oil Cooler and Lines) | ||
| Part Name | Part Number | Qty |
| 3J-6933 | Gasket | 4 |
| 3P-0653 | O-Ring Seal | 1 |
| 3P-0655 | O-Ring Seal | 1 |
| 6V-5066 | O-Ring Seal | 5 |
| 6V-6609 | O-Ring Seal | 2 |
| 7S-8767 | Gasket | 4 |
| 9Y-8388 | Gasket | 3 |
| 105-8901 | Gasket | 2 |
| 109-2332 | O-Ring Seal | 4 |
| 237-7623 | O-Ring Seal | 4 |
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.
Front Structure (425-9351 Gasket Kit)
| 425-9351 Gasket Kit (Front Structure) | ||
| Part Number | Part Name | Qty |
| 1H-9696 | O-Ring Seal | 1 |
| 1S-5772 | Gasket | 1 |
| 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 | 2 |
| 5R-7137 | Seal Washer | 4 |
| 6V-3348 | O-Ring Seal | 7 |
| 6V-3908 | O-Ring Seal | 1 |
| 6V-5066 | O-Ring Seal | 3 |
| 6V-6809 | O-Ring Seal | 1 |
| 7N-3049 | Gasket | 1 |
| 7N-3368 | Gasket | 1 |
| 7N-4932 | Gasket | 1 |
| 7X-4805 | O-Ring Seal | 2 |
| 8N-9885 | Cover Gasket | 2 |
| 9X-7371 | O-Ring Seal | 1 |
| 113-8432 | Crankshaft Seal Gp | 1 |
| 235-2484 | Lip Type Seal | 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 (438-9354 Gasket Kit)
| 438-9354 Gasket Kit (Central and Lower Structure) | ||
| Part Number | Part Name | Qty |
| 2M-9780 | O-Ring Seal | 1 |
| 2W-0752 | Gasket | 7 |
| 3P-0654 | O-Ring Seal | 2 |
| 4F-3765 | Shaft Gasket | 1 |
| 5P-4892 | O-Ring Seal | 2 |
| 5P-5700 | O-Ring Seal | 4 |
| 5P-5846 | O-Ring Seal | 1 |
| 5P-8068 | O-Ring Seal | 1 |
| 5P-8210 | O-Ring Seal | 3 |
| 6F-4868 | Gasket | 1 |
| 6J-2244 | O-Ring Seal | 1 |
| 6V-4314 | O-Ring Seal | 2 |
| 6V-4315 | O-Ring Seal | 2 |
| 6V-4368 | O-Ring Seal | 4 |
| 6V-4589 | O-Ring Seal | 1 |
| 6V-5048 | O-Ring Seal | 2 |
| 6V-5101 | O-Ring Seal | 1 |
| 6V-6609 | O-Ring Seal | 1 |
| 7E-2630 | Oil Pan Gasket | 1 |
| 7N-4945 | Gasket | 4 |
| 8C-3107 | O-Ring Seal | 1 |
| 8T-2928 | O-Ring Seal | 3 |
| 8T-2929 | O-Ring Seal | 3 |
| 9Y-8387 | Gasket | 3 |
| 9Y-8388 | Gasket | 3 |
| 142-4159 | Integral Seal | 1 |
| 214-7568 | O-Ring Seal | 6 |
| 228-7097 | O-Ring Seal | 1 |
| 230-1072 | Gasket | 2 |
| 237-7623 | O-Ring Seal | 2 |
| 272-0758 | Seal | 12 |
| 272-0759 | Seal | 12 |
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. AVSpare 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