This campaign is the final opportunity to replace the oil filter screw cap to reduce occurrences of broken...
Kenworth technical service bulletin E303 for 2018-2021 Kenworth T680, 2018-2021 Peterbilt 579 and 2018-2020 Kenworth T800 and others.
- Bulletin number
- E303
- Component
- Engine and engine cooling
- Summary
- This campaign is the final opportunity to replace the oil filter screw cap to reduce occurrences of broken bypass valve tabs. Broken oil valve tabs can cause oil flow obstruction to critical engine parts, resulting in serious engine damage. Customers that do not receive this repair may be responsible for progressive engine damage caused by broken oil bypass valve tabs.
Owners of these vehicles have filed 5 complaints in the engine category.
Vehicles covered
- Kenworth T680 2018-2021 2018201920202021
- Peterbilt 579 2018-2021 2018201920202021
- Kenworth T800 2018-2020 201820192020
- Kenworth W900 2018-2021 2018201920202021
- Kenworth T880 2018-2021 2018201920202021
- Peterbilt 567 2018-2021 2018201920202021
- Peterbilt 587 2018-2021 2018201920202021
- Peterbilt 548 2020-2021 20202021
- Kenworth T800B 2021 2021
- Peterbilt 537 2020-2021 20202021
- Kenworth W990 2018-2021 2018201920202021
- Peterbilt 536 2020-2021 20202021
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