An Improved Oil Pan Isolation Seal Is Used on Certain Commercial Engines {1302, 7555}
- Engine:
- C-15 (S/N: C2A1-UP)
- Industrial Engine:
- C15 (S/N: JAS1-UP)
- Marine Engine:
- C18 (S/N: CKH1-UP)
- C18 (S/N: EJG1-UP)
- C18 (S/N: WJH1-UP)
Description of Change: The new isolation seal has a fish eye shaped bead design which wrap around unused bolt holes on the cylinder block. This new design prevents contamination from getting under the seal in these areas and causing oil leaks.
Adaptable To: The improved 168-5248 Isolation Seal replaces the existing seal, which has the same part number. This change is adaptable back to first production on the serial numbers listed above.
Torque for the oil pan bolts when using the new 168-5248 Isolation Seal ... 25 ± 6 N·m (18 ± 4 lb ft)
This change is effective for the serial numbers listed in Table 1.
Show/hide table
| Effective Serial Numbers |
| S/N:C2A448-UP |
| S/N:JAS988-UP |
| S/N:CKH3278-UP |
| S/N:EJG1505-UP |
| S/N:WJH5857-UP |
Caterpillar Information System:
2013/01/10 An Improved Oil Pan Isolation Seal Is Available for Certain Truck Engines {1302, 7555}
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