Improved O-ring Seals for the Fuel Injection Lines Are Used in Certain 3500 Off-Highway Truck Engines {1252, 7555}
- Off-Highway Truck/Tractor:
- 785C (S/N: APX1-UP)
- 789C (S/N: 2BW1-UP)
- 793D (S/N: FDB1-UP)
- 797B (S/N: JSM1-UP)
Description of Change: The improved O-ring seals for the fuel lines are made from material that is more durable than the previous O-ring seals.
Adaptable To: The new O-ring seals are adaptable to the engines in the above machines back to first production. The new O-ring seals are effective with the serial numbers listed in Table 2.
The new O-ring seals and the original O-ring seals are listed in Table 1. The original parts are not canceled.
Show/hide table
| New Part | Original Part |
| 214-7566 O-Ring Seal | 3J-7354 O-Ring Seal 6V-5048 O-Ring Seal |
| 214-7567 O-Ring Seal | 1J-9671 O-Ring Seal |
| 214-7568 O-Ring Seal | 3J-1907 O-Ring Seal 6V-5049 O-Ring Seal |
| 228-7088 O-Ring Seal | 4J-5477 O-Ring Seal |
| 238-5080 O-Ring Seal | 3K-0360 O-Ring Seal |
| 238-5081 O-Ring Seal | 2M-9780 O-Ring Seal 6V-4589 O-Ring Seal |
Show/hide table
| Effective Serial Number for the New O-ring Seals |
| S/N:APX01964 |
| S/N:2BW83002 |
| S/N:FDB01554 |
| S/N:JSM00489 |
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