2018–2021 Kenworth T270, 2018–2021 Kenworth T370, 2018–2021 Kenworth T440 and 10 other models Recall: Sealing washer may not seat correctly in the pilot bore holes, allowing…
NHTSA campaign 21V391000 · Fuel System, Diesel · filed May 26, 2021 · verified Jul 30, 2026
The defect
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.
The risk
A fuel leak in the presence of an ignition source increases the risk of a fire.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to 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.
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.
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Kenworth | T270 | 2018, 2019, 2020, 2021 |
| Kenworth | T370 | 2018, 2019, 2020, 2021 |
| Kenworth | T440 | 2018, 2019, 2020, 2021 |
| Kenworth | T470 | 2018, 2019, 2020, 2021 |
| Kenworth | T800 | 2018, 2019, 2020 |
| Kenworth | T800B | 2021 |
| Kenworth | T880 | 2018, 2019, 2020, 2021 |
| Peterbilt | 337 | 2018, 2019, 2020, 2021 |
| Peterbilt | 348 | 2018, 2019, 2020, 2021 |
| Peterbilt | 365 | 2018, 2019, 2020, 2021 |
| Peterbilt | 367 | 2018, 2019, 2020, 2021 |
| Peterbilt | 520 | 2018, 2019, 2020, 2021 |
| Peterbilt | 567 | 2018, 2019, 2020, 2021 |
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More Kenworth T270 recalls
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Other campaigns involving Kenworth vehicles
Source: NHTSA recall database, campaign 21V391000 (manufacturer number 21KWC, 21PBD). Data last verified Jul 30, 2026.