# Service bulletin P001 A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned. - Type: Service bulletin - NHTSA id: 11037541 - Published by NHTSA: 2026\-09\-29 - Manufacturer's number: P001 - Manufacturer's date: 2026\-09\-11 - NHTSA component: ENGINE ## NHTSA's summary "Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes. 2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the chassis list." ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037541-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037541-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Engine ## Vehicles listed - BRADEN HYDRAULIC RECOVERY WINCH - BRADEN PD18C - 2007 KENWORTH 54 - 2008 KENWORTH 953 - 2011 to 2016 KENWORTH 963 - 2008 KENWORTH AEROCAB - 2002 to 2005 KENWORTH C500 - 2006 to 2025 KENWORTH C500 - 2025 KENWORTH C500 EXP - 2024 to 2025 KENWORTH C500B - 2007 KENWORTH C510 - 2011 to 2016 KENWORTH C540 - 2008 to 2009 KENWORTH C548CH - 2011 to 2016 KENWORTH C550 - 2003 KENWORTH CONVENTIONAL - 2004 KENWORTH K100 - 2002 to 2003 KENWORTH K100E - 2016 KENWORTH K170 - 2010 to 2026 KENWORTH K270 - 2012 to 2016 KENWORTH K300 - 2010 to 2018 KENWORTH K370 - 2022 to 2026 KENWORTH K370 - 2008 KENWORTH K500 - 2011 to 2012 KENWORTH K500 - 2003 KENWORTH KENWORTH - 2024 to 2026 KENWORTH L770 - 2005 to 2007 KENWORTH MB 55 - 2007 to 2023 KENWORTH T170 - 2021 KENWORTH T180 - 2022 to 2025 KENWORTH T180 - 2002 to 2005 KENWORTH T2000 - 2006 to 2012 KENWORTH T2000 - 2007 to 2023 KENWORTH T270 - 2021 KENWORTH T280 - 2022 to 2027 KENWORTH T280 - 2002 to 2011 KENWORTH T300 - 2007 to 2023 KENWORTH T370 - 2018 to 2021 KENWORTH T380 - 2022 to 2027 KENWORTH T380 - 2011 KENWORTH T400 - 2013 to 2015 KENWORTH T400 - 2018 to 2021 KENWORTH T410 - 2010 to 2023 KENWORTH T440 - 2009 to 2023 KENWORTH T470 - 2020 to 2021 KENWORTH T480 - 2022 to 2027 KENWORTH T480 - 2002 to 2005 KENWORTH T600 - 2006 to 2011 KENWORTH T600 - 2013 KENWORTH T600 - 2017 to 2020 KENWORTH T600 - 2024 to 2025 KENWORTH T600 - 2025 KENWORTH T600 EXP - 2002 to 2020 KENWORTH T660 - 2011 to 2027 KENWORTH T680 - 2007 to 2014 KENWORTH T700 - 2002 to 2005 KENWORTH T800 - 2006 to 2025 KENWORTH T800 - 2021 to 2025 KENWORTH T800B - 2011 to 2027 KENWORTH T880 - 2018 to 2021 KENWORTH T880B - 2002 KENWORTH T900 - 2025 KENWORTH T990 - 2002 to 2005 KENWORTH W900 - 2006 to 2025 KENWORTH W900 - 2021 to 2025 KENWORTH W900B - 2010 KENWORTH W900S - 2018 to 2027 KENWORTH W990 - 2012 to 2016 PACCAR C540 - 2013 to 2021 PACCAR MX\-11 - 2011 to 2021 PACCAR MX\-13 - PACCAR PX7 - PACCAR PX9 - PACCAR WARNING TRIANGLE KITS - 2005 PETERBILT 201 - 2008 to 2018 PETERBILT 210 - 2021 PETERBILT 210 - 2015 to 2026 PETERBILT 220 - 2002 to 2023 PETERBILT 320 - 2008 PETERBILT 325 - 2010 to 2011 PETERBILT 325 - 2014 to 2023 PETERBILT 325 - 2002 to 2005 PETERBILT 330 - 2007 to 2023 PETERBILT 330 - 2005 to 2011 PETERBILT 335 - 2008 PETERBILT 336 - 2008 to 2023 PETERBILT 337 - 2006 to 2011 PETERBILT 340 - 2021 PETERBILT 340 - 2008 to 2025 PETERBILT 348 - 2002 to 2016 PETERBILT 357 - 2021 PETERBILT 357 - 2002 to 2005 PETERBILT 362 - 2024 to 2025 PETERBILT 363 - 2004 to 2025 PETERBILT 365 - 2004 to 2025 PETERBILT 367 - 2003 to 2004 PETERBILT 372 - 2002 to 2016 PETERBILT 378 - 2021 PETERBILT 378 - 2002 to 2016 PETERBILT 379 - 2021 PETERBILT 379 - 2007 to 2008 PETERBILT 379K - 2006 to 2016 PETERBILT 382 - 2021 PETERBILT 382 - 2007 to 2021 PETERBILT 384 - 2002 to 2016 PETERBILT 385 - 2021 PETERBILT 385 - 2004 to 2021 PETERBILT 386 - 2002 to 2016 PETERBILT 387 - 2021 PETERBILT 387 - 2004 to 2021 PETERBILT 388 - 2004 to 2025 PETERBILT 389 - 2016 PETERBILT 389G - 2008 to 2009 PETERBILT 389K - 2014 PETERBILT 389K - 2008 PETERBILT 398 - 2002 to 2016 PETERBILT 520 - 2017 to 2026 PETERBILT 520 - 2021 PETERBILT 535 - 2022 to 2025 PETERBILT 535 - 2020 to 2021 PETERBILT 536 - 2022 to 2027 PETERBILT 536 - 2020 to 2022 PETERBILT 537 - 2023 to 2027 PETERBILT 537 - 2020 to 2023 PETERBILT 548 - 2024 to 2027 PETERBILT 548 - 2006 to 2027 PETERBILT 567 - 2006 to 2027 PETERBILT 579 - 2006 to 2021 PETERBILT 587 - 2024 to 2027 PETERBILT 589 - 2008 to 2014 PETERBILT MODEL 220 - 2002 to 2003 PETERBILT PETERBILT - TRP ALUMINUM WHEEL ## Recalls for the same vehicles and component - [18V657000](/recalls/nhtsa/18V657000.md), 2018-09-21: ENGINE AND ENGINE COOLING:ENGINE:DIESEL - [2016289](/recalls/tc/2016289.md), 2016-06-08: Engine - [15V597000](/recalls/nhtsa/15V597000.md), 2015-09-24: ELECTRICAL SYSTEM:IGNITION:MODULE; ENGINE AND ENGINE COOLING:ENGINE - [2015418](/recalls/tc/2015418.md), 2015-09-23: Engine - [15V309000](/recalls/nhtsa/15V309000.md), 2015-05-26: ENGINE AND ENGINE COOLING:ENGINE - [2015211](/recalls/tc/2015211.md), 2015-05-15: Engine - [2014046](/recalls/tc/2014046.md), 2014-02-19: Engine - [14V086000](/recalls/nhtsa/14V086000.md), 2014-02-18: ENGINE AND ENGINE COOLING:ENGINE - [11V203000](/recalls/nhtsa/11V203000.md), 2011-03-24: ENGINE AND ENGINE COOLING - [2011087](/recalls/tc/2011087.md), 2011-02-25: Engine ## Other bulletins for the same vehicles and component - [43\-088](/bulletins/11036289.md), 2026-08-20, Service bulletin: ENGINE. The procedure has been updated to include additional steps for verifying the software level on the vehicle electronic control unit \(VECU2\) and digital display \(DD\). Steps have also been added to the PACCAR Common Rail Injection 2 \(PCI2\) software verification. - [E316](/bulletins/11035430.md), 2026-08-01, Service bulletin: ENGINE. 235 chassis have been removed from the chassis list and unflagged in PRWS due to expiration of applicable warranty coverage. 5 chassis have been added to the chassis list. The total chassis population is now 15,637. - [E311](/bulletins/11035343.md), 2026-07-30, Service bulletin: ENGINE. 105 chassis have been removed from the chassis list and unflagged in PRWS due to expiration of applicable warranty coverage. Total chassis population is 732. - [43\-088](/bulletins/11035202.md), 2026-07-23, Service bulletin: ENGINE. This optional software update is now available for chassis equipped with EMY 2021B\-2023 PACCAR MX\-11 and MX\-13 engines. This update provides customers with additional time to service their trucks before a DEF\-related derate occurs. The software is being offered to customers in alignment with recently updated regulatory agency guidance. - [E318](/bulletins/11035147.md), 2026-07-22, Service bulletin: ENGINE. The Condition, Chassis Affected, Service Action, Warranty, and Procedure sections have been updated to include the latest prognostics bulletin verbiage. The Warranty section has also been updated to include Peterbilt specific SRT codes for filing cross\-division repairs. - [E316](/bulletins/11035112.md), 2026-07-21, Service bulletin: ENGINE. The Condition, Chassis Affected, Service Action, Warranty, and Procedure sections have been updated to include the latest prognostics bulletin verbiage. - [E311](/bulletins/11035111.md), 2026-07-21, Service bulletin: ENGINE. The Condition, Chassis Affected, Service Action, Warranty, and Procedure sections have been updated to include the latest prognostics bulletin verbiage. - [43\-088](/bulletins/11035108.md), 2026-07-21, Service bulletin: ENGINE. "The software is not yet available. The bulletin will be updated when more information is available." - [43\-088](/bulletins/11034394.md), 2026-07-02, Service bulletin: ENGINE. "An optional software update will be available on 07/06/2026 for chassis equipped with EMY 2021B\-2023PACCAR MX\-11 and MX\-13 engines. This update provides customers with additional time to service theirtrucks before a DEF\-related derate occurs. The software is being offered to customers in alignment withrecently updated regulatory agency guidance." - [R2103](/bulletins/11033914.md), 2026-06-17, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Updated the point of contact for sourcing the MX Engine Overlay Harness Kits. This retrofit should have been completed by 5/15/2022 per the Action section of the bulletin. However, trucks still open in SIR are still eligible for the repairs. JSON: [/v1/bulletins/11037541](/v1/bulletins/11037541) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20P001&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11037541&vehicle=Service%20bulletin%20P001)