Fuel system, diesel: fuel injection system: fuel rail (Peterbilt and Kenworth)
Vehicle recall 21V-391. NHTSA received PACCAR Incorporated’s report on May 26, 2021.
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The short answer
NHTSA received PACCAR Incorporated’s report on May 26, 2021. Copied from NHTSA on Oct 25, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
A fuel leak in the presence of an ignition source increases the risk of a fire.
PACCAR Incorporated (PACCAR) is recalling certain 2018-2021 Peterbilt 337, 348, 365, 367, 520, 567, Kenworth T270, T370, T440, T470, T800 and T880 vehicles.
The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
NHTSA, Recalls flat file. Released Oct 25, 2026. Updated daily.
- NHTSA’s part: Fuel system, diesel: fuel injection system: fuel rail.
What should you do?
Dealers will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt). PACCAR’s numbers for this recall are 21KWC and 21PBD.
NHTSA, Recalls flat file. Released Oct 25, 2026. Updated daily.
- How to reach the firm: 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.safercar.gov.
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 612 vehicles potentially involved, across everything this recall names.
Each model year opens its own page: every recall naming it, its owner complaints and its crash ratings.
NHTSA, Recalls flat file. Released Oct 25, 2026. Updated daily.
- Peterbilt 3672021202020192018
- Peterbilt 3372021202020192018
- Peterbilt 5672021202020192018
- Kenworth T3702021202020192018
- Peterbilt 3652021202020192018
- Peterbilt 5202021202020192018
- Peterbilt 3482021202020192018
- Kenworth T8802021202020192018
- Kenworth T800202020192018
- Kenworth T800B2021
- Kenworth T4702021202020192018
- Kenworth T2702021202020192018
- Kenworth T4402021202020192018
Who is recalling it?
- Made by PACCAR Incorporated.
NHTSA, Recalls flat file. Released Oct 25, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt. Owners’ complaints are counted on each vehicle’s page.
- Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
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National Highway Traffic Safety Administration, Recalls flat file (FLAT_RCL_POST_2010).
Released Oct 25, 2026 and checked Oct 25, 2026. Updated daily. Public domain (U.S. Government work).
Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 25, 2026.