2023 Peterbilt 367 technical service bulletins
38 technical service bulletins and manufacturer communications cover the 2023 Peterbilt 367, including 2 warranty extensions.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Fuel Injection Pump part number 2344776PEX for MX-13 engines has been added to this warranty policy.
- 32 fuel injector part numbers (16 for MX-11 and 16 for MX-13) have been added to this warranty policy.
- RMI procedures have been updated to reduce the risk of progressive damage to the rocker arms
- 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...
- Warranty section has been updated to include hood length definitions and filing instructions for...
- (KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation.
- Certain EPA21 PACCAR MX engines are equipped with PHINIA fuel injectors that do not meet PHINIA’s...
- (KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation
- The attached procedures document has been updated with more detail and explanations
- E335 Warranty wording update Apr 2026
- EMY21-25 ghg
- Sheppard Recall Order Process Update
- The Parts section has been updated to clarify that freight charges for safety recall orders should not be...
- Procedure pictures updated for clarity
- The right-hand shift stalk may have an improper wire harness terminal crimp within the wire harness connector
- 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
- Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting...
- Fix-As-Fail The window switch fails prematurely due to excessive amperage flowing through the window...
- Fix As Fail Approximately 150 chassis built with an Allison 6th Gen 4500 series 6-speed transmission were...
- Fix As Fail The height control valve (HCV) rod on vehicles with low air leaf suspensions is prone to...
- Interim
- Incorrect fuel filter drain and replacement procedures on EPA21 MX-11 and MX-13 engines can result in the...
- RFID (Radio Frequency ID) tags are being added and used to track Non-Test Ready (NTR) trucks to...
- Certain Model Year 2021-2024 chassis with PACCAR MX engines and optional fuel filter restriction virtual...
- Peterbilt SmartLINQ subscriptions can be renewed online via PACCAR Solutions RemoteDiagnostics web portal.
- Info Only
- The service information for Bendix Air Dryer maintenance is being updated to include new procedures.
- During PTO mode, the engine will not ramp up to the set RPM speed.
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