- Vehicles
- 936
- Built between
- Dec 2007 – Oct 2023
- Models
- 10
- Recall type
- Vehicle
- Initiated by
- Manufacturer
- Owners notified
- 12 August 2024
- Repaired
- 24%
- Unrepaired
- 711
Does this affect my vehicle?
This recall covers vehicles built between December 2007 and October 2023. If yours was built outside that window, it is not part of this recall.
- 2009-2021 Kenworth C500Built August 2008 to September 2020
- 2009-2020 Kenworth T370Built April 2008 to December 2019
- 2012-2021 Kenworth T440Built May 2011 to July 2020
- 2011-2016 Kenworth T470Built September 2010 to September 2015
- 2023 Kenworth T480Built November 2022 to November 2022
- 2009-2015 Kenworth T660Built August 2008 to November 2014
- 2015-2024 Kenworth T680Built January 2014 to January 2023
- 2009-2024 Kenworth T800Built December 2007 to October 2023
- 2014-2023 Kenworth T880Built December 2012 to November 2022
- 2009-2019 Kenworth W900Built February 2008 to January 2018
Repair progress
711 of 936 vehicles in this recall had still not been repaired as of Q2 2026.
24% repaired — 225 of 936 reported
Manufacturers file these figures with NHTSA each quarter. Vehicles the manufacturer could not trace, or that have been scrapped or exported, are counted separately and are not included in the unrepaired figure.
What the defect is
PACCAR Incorporated (PACCAR) is recalling certain 2009-2021 Kenworth C500, 2012-2021 Kenworth T440, 2009-2015 Kenworth T660, 2015-2024 Kenworth T680, 2009-2024 Kenworth T800, 2009-2020 Kenworth T370, 2014-2023 Kenworth T880, 2011-2016 Kenworth T470, 2023 Kenworth T480, and 2009-2019 Kenworth W900 vehicles. The air tanks have an insufficient volume of air for the brake system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
What could happen
Insufficient air volume can reduce braking performance and increase the risk of a crash.
What gets fixed
Dealers will install the correct volume air tanks, free of charge. Owner notification letters were mailed August 12, 2024. Additional owner notification letters were mailed October 27, 2025.
Parts involved
- Air tanksN/AAir tanks
Part numbers are as filed by the manufacturer and are listed for reference. Your dealer will confirm the correct part for your vehicle.
Timeline
- Vehicles builtDecember 2007 to October 2023
- Recall reported to NHTSA23 February 2024
- Owners notified12 August 2024
- Latest repair reportQ2 2026 — 24% repaired
Your rights
A safety recall repair is free. Under US federal law the manufacturer must fix a safety defect at no cost to you — no charge for parts, labor or diagnosis — whether or not you are the original owner. A dealer cannot charge you for recall work, and cannot require you to have bought the vehicle from them.
That entitlement is not unlimited. It applies where the vehicle was first sold less than 15 years before the recall was announced — 5 years for tires. Past that a manufacturer may still do the repair free of charge, and many do, but they are no longer obliged to. This recall was reported on 23 February 2024.
To arrange the repair, contact any franchised dealer for the brand. If a dealer refuses the work or tries to charge for it, you can report that to NHTSA at nhtsa.gov/recalls or on 1-888-327-4236.
Manufacturer contact
Owners may contact PACCAR customer service at 1-425-828-5888. PACCAR's number for this recall is 24KWD.
Official source
- Manufacturer's recall number
- 24KWD
- Recalling manufacturer
- PACCAR Incorporated
- Safety standard
- FMVSS 121
- Recall initiated by
- MFR
Everything on this page — the models listed, the build dates and the repair figures — comes from the manufacturer's filing to NHTSA and describes the vehicle line as a whole, not any individual car. Only the manufacturer can confirm whether a specific vehicle is affected, and whether its recall work has already been carried out. Check yours by VIN and read the official notice at nhtsa.gov/recalls.
Additional notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Check your own vehicle
This page describes the recall, not any one car. To see which recalls cover a specific vehicle, search by make, model and year.
A VIN lookup here identifies your vehicle and shows recalls issued for that make, model and year. It cannot tell you what is still open on your individual car - only the manufacturer knows that. Search by VIN instead, or check your VIN at nhtsa.gov for whether a recall is still open on your individual car.