| Bulletin Date: | Mar. 21, 2023 |
| Component: | Engine and engine cooling |
| Bulletin Summary: | This technical service bulletin announces introduction of new valve seat guide no. 6381879 and supersedes the old part no. 3906206. |
| Vehicles covered in this TSB: |
Cummins B5.9,
Cummins ISB.
|
| Bulletin Date: | Jan. 11, 2023 |
| Component: | Service brakes, hydraulic |
| Bulletin Summary: | This technical service bulletin describes the correct service replacement part number for the engine oil pressure switch. |
| Vehicles covered in this TSB: |
Cummins B6.7,
Cummins ISB,
Cummins Isb6.7,
Cummins ISL,
Cummins Isl G,
Cummins ISX15.
|
| Bulletin Date: | Jan. 10, 2023 |
| Component: | Structure |
| Bulletin Summary: | This technical service bulletin was issued for "engine serial numbers duplicated issue. Rocky mount engine plant (rmep) issued engine serial numbers (esns) assigned to previously built engines. This has resulted in duplicate esns being iss |
| Vehicles covered in this TSB: |
Cummins B,
Cummins B6.7,
Cummins B6.7n,
Cummins ISB,
Cummins ISC,
Cummins ISL,
Cummins ISL9,
Cummins L9.
|