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NHTSA campaign 21V391000 · Manufacturer campaign 21KWC, 21PBD

Kenworth and Peterbilt Recall 21V-391: High Pressure Fuel Rail Assembly May Leak Fuel

NHTSA recall 21V391000 (Manufacturer campaign 21KWC, 21PBD) was reported by PACCAR Incorporated on May 26, 2021, with 612 vehicles potentially affected (per NHTSA). NHTSA's record lists the Kenworth T270, Kenworth T370, Kenworth T440 and more for model years 2018–2021. Owners were notified on July 30, 2021, per NHTSA.

Updated daily from NHTSA's recall files

Is my vehicle included?

This page lists, by model year, the vehicles NHTSA's recall record names for campaign 21V391000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.

To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.

Free VIN check: decode a VIN to see its year, make and model.

Key facts

NHTSA campaign
21V391000 (also written 21V-391 or 21V391)
Filed by
PACCAR Incorporated
Manufacturer campaign number
21KWC, 21PBD
Report received
Potentially affected
612 vehicles (per NHTSA)
Component
Fuel System, Diesel — Fuel Injection System — Fuel Rail
Owners notified

Repair completion: 49.67% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)

NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.

Vehicles listed for this recall

NHTSA's recall record lists these vehicles for recall 21V391000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.

Kenworth

All Kenworth recalls

Peterbilt

All Peterbilt recalls

NHTSA's recall notice

As NHTSA's recall record states it for campaign 21V391000.

Defect description

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.

Safety consequence

A fuel leak in the presence of an ignition source increases the risk of a fire.

Manufacturer remedy

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.

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.safercar.gov.

Sources

Official NHTSA notice for recall 21V391000

Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.