- Engine:
- 3508B (S/N: 2HW1-UP)
- Petroleum Engine:
- 3508C PETROLEUM (S/N: LLC1-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: This kit does not contain main bearings, rod bearings and thrust plates.
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     | 174-4949     | S/N:2HW     | SEBP2734     | SENR6564     |
162-8846 | ||||
133-9939 | ||||
250-7624 | S/N:LLC     | SEBP4366     | RENR9365     |
Note: For ordering reference material contact your local Cat dealer.
3508 458-7290 Major Overhaul Kit Consist
458-7290 Major Overhaul Kit Consist     | ||
Gasket Kits     | ||
Part Number     | Part Name     | Qty     |
457-5251     | Oil Cooler and Lines Gasket Kit     | 1     |
457-6091     | Front Structure Gasket Kit     | 1     |
457-7652     | Rear Structure Gasket Kit     | 1     |
458-0905     | After Cooler and Lines Gasket Kit     | 1     |
458-2919     | Single Cylinder Head Gasket Kit     | 8     |
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     |
1S-6595     | Oil Supply Gasket     | 2     |
2N-2765     | High Temperature Bolt     | 8     |
2N-2766     | Locknut     | 8     |
2W-0752     | Gasket     | 2     |
3J-1907     | O-Ring Seal     | 2     |
3J-7354     | O-Ring Seal     | 1     |
3K-0360     | O-Ring Seal     | 2     |
3L-5907     | Gasket     | 2     |
3P-0654     | O-Ring Seal     | 3     |
3P-6061     | Gasket     | 1     |
3S-9643     | Lip Type Seal     | 6     |
4W-3027     | Breather As     | 2     |
4W-3100     | Gasket     | 1     |
5D-5957     | O-Ring Seal     | 3     |
5F-9657     | O-Ring Seal     | 4     |
5P-7818     | O-Ring Seal     | 1     |
5P-8210     | O-Ring Seal     | 2     |
5P-8872     | O-Ring Seal     | 1     |
6F-4868     | Gasket     | 2     |
6V-1454     | O-Ring Seal     | 2     |
6V-3907     | O-Ring Seal     | 4     |
6V-4368     | O-Ring Seal     | 4     |
6V-4589     | O-Ring Seal     | 2     |
6V-5048     | O-Ring Seal     | 9     |
6V-5064     | O-Ring Seal     | 2     |
6V-5101     | O-Ring Seal     | 2     |
6V-5103     | O-Ring Seal     | 4     |
6V-8001     | O-Ring Seal     | 1     |
6V-8397     | O-Ring Seal     | 4     |
7E-2631     | Oil Pan Gasket     | 1     |
7E-6016     | Gasket     | 4     |
7N-4782     | Lifter Guide Spring     | 16     |
7N-4927     | Housing Cover Gasket     | 1     |
7N-4945     | Gasket     | 3     |
7X-1547     | O-Ring Seal     | 2     |
8C-3445     | Dust Cap     | 1     |
8L-2786     | O-Ring Seal     | 1     |
8T-2928     | O-Ring Seal     | 2     |
8T-2929     | O-Ring Seal     | 2     |
9L-1480     | Gasket     | 4     |
9Y-6893     | Gasket     | 2     |
9Y-8389     | Gasket     | 1     |
033-6031     | O-Ring Seal     | 2     |
101-1198     | Camshaft Bearing     | 10     |
116-1365     | Bushing     | 2     |
121-5736     | Gasket     | 2     |
122-8856     | Gasket     | 2     |
125-9794     | O-Ring Seal     | 1     |
127-5400     | Bushing     | 4     |
154-6389     | Button     | 24     |
214-7566     | O-Ring Seal     | 1     |
214-7568     | O-Ring Seal     | 8     |
219-3240     | Temperature Regulator     | 2     |
230-1072     | Gasket     | 2     |
238-5080     | O-Ring Seal     | 1     |
238-5081     | O-Ring Seal     | 9     |
243-2288     | Gasket     | 2     |
248-5513     | Temperature Regulator     | 4     |
272-0759     | Valve Cover Seal     | 8     |
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 | g03733744 |
(1) After Cooler and Lines ( 458-0905 Gasket Kit ) (2) Single Cylinder Head ( 458-2919 Gasket Kit ) (3) Front Structure ( 457-6091 Gasket Kit ) (4) Oil Cooler and Lines ( 457-5251 Gasket Kit ) (5) Rear Structure ( 457-7652 Gasket Kit ) |
Gasket Kit Consists
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.
Front Structure (457-6091 Gasket Kit)
457-6091 Gasket Kit (Front Structure)     | ||
Part Number     | Part Name     | Qty     |
1H-9696     | O-Ring Seal     | 1     |
3P-6061     | Gasket     | 1     |
4F-7387     | O-Ring Seal     | 1     |
4N-1320     | Gasket     | 2     |
4W-0530     | Retaining Ring     | 1     |
5B-4399     | O-Ring Seal     | 1     |
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     |
6J-2680     | O-Ring Seal     | 1     |
6V-3348     | O-Ring Seal     | 8     |
6V-5066     | O-Ring Seal     | 4     |
6V-6809     | O-Ring Seal     | 1     |
6V-8260     | 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     |
8T-1919     | 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.
Rear Structure (457-7652 Gasket Kit)
457-7652 Gasket Kit (Rear Structure)     | ||
Part Number     | Part Name     | Qty     |
1S-4810     | Oil Drain Gasket     | 2     |
2J-6274     | O-Ring Seal     | 1     |
3K-0360     | O-Ring Seal     | 1     |
4B-8407     | Copper Gasket     | 4     |
4H-7869     | Gasket     | 3     |
5F-9657     | O-Ring Seal     | 2     |
5P-9890     | O-Ring Seal     | 2     |
6V-3348     | O-Ring Seal     | 4     |
7N-3368     | Gasket     | 1     |
7N-4320     | Gasket     | 2     |
7X-4805     | O-Ring Seal     | 3     |
113-8433     | Crankshaft Seal Gp     | 1     |
234-8937     | Integral Seal     | 2     |
252-8374     | Gasket     | 2     |
Refer to Illustration 1
Aftercooler and Lines ( 458-0905 Gasket Kit )
458-0905 Gasket Kit (Aftercooler and Lines)     | ||
Part Number     | Part Name     | Qty     |
4S-5898     | O-Ring Seal     | 8     |
4W-0530     | Retaining Ring     | 3     |
5B-4399     | O-Ring Seal     | 1     |
6J-2680     | O-Ring Seal     | 2     |
6V-3917     | O-Ring Seal     | 4     |
6V-5101     | O-Ring Seal     | 8     |
6V-9027     | O-Ring Seal     | 3     |
8T-1919     | O-Ring Seal     | 3     |
107-3758     | Seal     | 2     |
109-7411     | O-Ring Seal     | 2     |
112-1564     | Gasket     | 1     |
Refer to Illustration 1.
Single Cylinder Head (458-2919 Gasket Kit)
458-2919 Gasket Kit (Single Cylinder Head)     | ||
Part Number     | Part Name     | Qty     |
5P-0840     | O-Ring Seal     | 2     |
5P-7530     | O-Ring Seal     | 4     |
6J-2245     | 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     |
7W-8145     | Exhaust Manifold Gasket     | 1     |
110-6991     | Cylinder Head Gasket     | 1     |
117-9315     | Seal     | 4     |
127-2176     | Integral Seal     | 1     |
144-5692     | Plate Gasket     | 1     |
214-7568     | O-Ring Seal     | 2     |
240-7032     | Seal     | 1     |
241-5928     | Gasket     | 4     |
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.