2025 Peterbilt 365 technical service bulletins
17 technical service bulletins and manufacturer communications cover the 2025 Peterbilt 365, including one warranty extension.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- 32 fuel injector part numbers (16 for MX-11 and 16 for MX-13) have been added to this warranty policy.
- Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes
- The procedure has been updated to include additional steps for verifying the software level on the vehicle...
- The verbiage in the Introduction section has been updated.
- This optional software update is now available for chassis equipped with EMY 2021B-2023 PACCAR MX-11 and...
- The Condition, Chassis Affected, Service Action, Warranty, and Procedure sections have been updated to...
- The software is not yet available
- An optional software update will be available on 07/06/2026 for chassis equipped with EMY 2021B-2023PACCAR...
- KW: A new recommended repair has been added to verify the software level and close the campaign in SIR.The...
- Certain EPA21 PACCAR MX engines are equipped with PHINIA fuel injectors that do not meet PHINIA’s...
- The attached procedures document has been updated with more detail and explanations
- Procedure pictures updated for clarity
- Newly designed fuel injectors are available for EPA2021 compliant PACCAR MX-series engines to optimize...
- As of 03/25/2025, this campaign has resumed
- Vehicles equipped with PACCAR MX engines with Engine Software Version NA202 or NA206 may display a dash...
- Safety Recall Updated software and procedures are now available
- CARB Emission s Manufacturer Warranty term and/or kilometers conversion displayed in certain EMY 2022-2023...
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