- Engine:
- 3508B (S/N: S2B1-UP; 3DM1-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: For assistance with technical questions, contact your local Cat dealer.
Note: For more information, visit us at: catlanddrillingsupport.com.
Reference Material
Engine Model     | Engine Arrangement     | Engine Serial Number Prefix     | Parts Book Media     | Disassembly and Assembly Media     |
3508     | 173-6953     | S/N:3DM     | SEBP2452     | SENR6564     |
232-2465 | S/N:S2B     |
SEBP3908     | ||
232-2466 |
Note: For ordering reference material contact your local Cat dealer.
3508 458-6550 Top End Overhaul Kit Consist
458-6550 Top End Overhaul Kit Consist     | ||
Gasket Kits     | ||
Part Number     | Part Name     | Qty     |
306-2351     | Water Pump Installation Gasket Kit     | 1     |
457-5251     | Oil Cooler and Lines Gasket Kit     | 1     |
457-6112     | Turbocharger Installation Gasket Kit     | 2     |
458-2952     | Single Cylinder Head Gasket Kit     | 8     |
Additional Parts Included in This Kit     | ||
Part Number     | Part Name     | Qty     |
1R-0726     | Engine Oil Filter Element As     | 3     |
1R-0756     | Fuel Filter     | 5     |
3H-5939     | Heat Exchanger Gasket     | 1     |
3J-7354     | O-Ring Seal     | 2     |
3K-0360     | O-Ring Seal     | 2     |
3P-6061     | Gasket     | 1     |
3S-9643     | Lip Type Seal     | 6     |
4W-0530     | Retaining Ring     | 4     |
4W-3027     | Breather As     | 2     |
5B-4399     | O-Ring Seal     | 1     |
5D-5957     | O-Ring Seal     | 1     |
6J-2680     | O-Ring Seal     | 4     |
6V-1454     | O-Ring Seal     | 2     |
6V-3907     | O-Ring Seal     | 4     |
6V-5048     | O-Ring Seal     | 4     |
6V-5064     | O-Ring Seal     | 1     |
6V-8001     | O-Ring Seal     | 1     |
6V-9027     | O-Ring Seal     | 3     |
7N-4782     | Lifter Guide Spring     | 16     |
7N-4927     | Housing Cover Gasket     | 2     |
8T-1919     | O-Ring Seal     | 4     |
9Y-6893     | Gasket     | 2     |
033-6031     | O-Ring Seal     | 2     |
107-3758     | Seal     | 2     |
109-7411     | O-Ring Seal     | 2     |
112-1564     | Gasket     | 1     |
154-6389     | Button     | 24     |
219-3240     | Temperature Regulator     | 2     |
230-1072     | Gasket     | 2     |
248-5513     | Temperature Regulator     | 4     |
272-0760     | Valve Cover Seal     | 4     |
Note: For assistance or technical questions contact your local Cat dealer.
Note: Refer to Illustration 1 for location of gasket kits.
3508 Engine Gasket Kit Locations
Illustration 1 | g03732749 |
(1) Turbocharger Installation ( 457-6112 Gasket Kit ) (2) Single Cylinder Head ( 458-2952 Gasket Kit ) (3) Water Pump Installation ( 306-2351 Gasket Kit ) (4) Oil Cooler and Lines ( 457-5251 Gasket Kit ) |
Gasket Kit Consists
Water Pump Installation (306-2351 Gasket Kit)
306-2351 Gasket Kit (Water Pump Installation)     | ||
Part Number     | Part Name     | Qty     |
1S-5772     | Gasket     | 1     |
5H-6734     | O-Ring Seal     | 1     |
6V-6809     | O-Ring Seal     | 1     |
7N-4932     | Gasket     | 1     |
8T-2903     | O-Ring Seal     | 2     |
Refer to Illustration 1.
Oil Cooler and Lines (457-5251 Gasket Kit)
457-5251 Gasket Kit (Oil Cooler and Lines)     | ||
Part Name     | Part Number     | Qty     |
3P-0655     | O-Ring Seal     | 3     |
4N-1320     | Gasket     | 2     |
5P-4892     | O-Ring Seal     | 4     |
5P-5846     | O-Ring Seal     | 1     |
6V-3908     | O-Ring Seal     | 1     |
6V-4589     | O-Ring Seal     | 2     |
6V-5048     | O-Ring Seal     | 2     |
6V-5066     | O-Ring Seal     | 2     |
6V-6609     | O-Ring Seal     | 3     |
7N-4945     | Gasket     | 1     |
8L-2786     | O-Ring Seal     | 1     |
109-2332     | O-Ring Seal     | 8     |
111-3820     | Retaining Ring     | 1     |
228-7097     | O-Ring Seal     | 1     |
247-3796     | Gasket     | 2     |
361-7097     | Ring     | 1     |
Refer to Illustration 1.
Turbocharger Installation ( 457-6112 Gasket Kit )
457-6112 Gasket Kit (Turbocharger Installation)     | ||
Part Number     | Part Name     | Qty     |
2N-2765     | High Temperature Bolt     | 4     |
2N-2766     | Locknut     | 4     |
4P-4460     | Gasket     | 1     |
5P-9890     | O-Ring Seal     | 2     |
6V-3917     | O-Ring Seal     | 2     |
6V-4589     | O-Ring Seal     | 1     |
6V-5103     | O-Ring Seal     | 2     |
6V-6069     | O-Ring Seal     | 3     |
7N-7559     | Gasket     | 1     |
8L-2786     | O-Ring Seal     | 2     |
121-5736     | Gasket     | 1     |
180-8424     | O-Ring Seal     | 3     |
341-9211     | Gasket     | 4     |
453-7799     | Gasket     | 2     |
Refer to Illustration 1.
Single Cylinder Head (458-2952 Gasket Kit)
458-2952 Gasket Kit (Single Cylinder Head)     | ||
Part Number     | Part Name     | Qty     |
4S-5898     | O-Ring Seal     | 1     |
5P-0840     | O-Ring Seal     | 2     |
6J-2245     | O-Ring Seal     | 1     |
6V-5101     | O-Ring Seal     | 1     |
6V-6228     | O-Ring Seal     | 3     |
6V-9769     | O-Ring Seal     | 1     |
7N-5080     | Manifold Gasket     | 1     |
7N-6806     | Rectangular Seal     | 1     |
110-6991     | Cylinder Head 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     |
272-0758     | Seal     | 1     |
272-0760     | Valve Cover Seal     | 1     |
420-0652     | Water Seal Assembly     | 4     |
420-0653     | Water Seal Assembly     | 4     |
Refer to Illustration 1.