RECALLS — MAKE · MODEL · YEAR
2021 Kenworth T370 recalls
5 safety recall campaigns have been filed for the 2021 Kenworth T370 with Transport Canada and the U.S. NHTSA. Here is what both agencies say.
- Canadian recalls
- 03
- U.S. recalls
- 02
- Total campaigns
- 05
Transport Canada recalls
03- Brakes#2024744
23,441 units affected
Issue: On certain trucks, poor signal strength could cause the electronic control unit (ECU) to stop working or not to work properly. As a result, some safety systems may not work, including the antilock braking system, automatic traction control, electronic stability control, active cruise control and the collision mitigation system. Safety Risks: Vehicle safety systems that don't work correctly could increase the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and advise you to take your truck to a dealership to reprogram the ECU software.
- Fuel System#2021480
71 units affected
Issue: On certain trucks, the hoses between the fuel pump and remote fuel filter may be defective and could leak. Note: This recall only affects trucks equipped with a Cummins 2021 model year L9 diesel engine. Safety Risk: A fuel leak can create the risk of a fire. Corrective Actions: PACCAR will notify owners by mail and instruct you to take your truck to a Cummins authorized service center to replace the fuel hoses.
- Fuel System#2021323
19 units affected
Issue: On certain trucks, the fuel rail assembly could develop a leak. Note: This recall only affects trucks equipped with a Cummins L9 or ISX12 diesel engine. Safety Risk: A fuel leak can create the risk of a fire. Corrective Actions: Cummins will notify owners by mail and instruct you to take your truck to a Cummins authorized service center to inspect the fuel rail. If damage is found, the fuel rail and fuel lines will be replaced. If no damage is found, the fuel rail will be reassembled with new crush washers using a special tool.
Canadian data updated August 24, 2026
U.S. NHTSA recalls
02- FUEL SYSTEM, DIESEL:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS#21V601000
PACCAR Incorporated (PACCAR) is recalling certain 2021-2022 Peterbilt 536, 537, 548 and Kenworth T270, T280, T370, T380, T440, T470, and T480 vehicles equipped with Cummins L9 diesel engines. A fuel leak may occur from the fuel hose between the fuel pump and the remote fuel filter head.
Risk: A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy: Cummins will replace the fuel hoses, free of charge. Owner notification letters are expected to be mailed in October 2021. Owners may contact PACCAR's customer service at 1-425-828-5888 (Kenworth) and 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21PBG and 21KWF.
- FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL#21V391000
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.
Risk: A fuel leak in the presence of an ignition source increases the risk of a fire.
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.
Does this recall apply to my vehicle?
Matched by make, model, and model year. Many recalls affect only specific VIN ranges — confirm with your dealer using your full VIN.
What to do
Recall repairs are free at a franchised dealer in both countries. To confirm a recall applies to your specific vehicle, or to book the work, contact your manufacturer or dealer with your full VIN, or use the official channel:
- NHTSA recall lookup (search by VIN) — U.S. National Highway Traffic Safety Administration
- Defects and recalls database — Transport Canada
Check a 2021 Kenworth T370 VIN
A VIN decode confirms your vehicle's exact model year, trim and assembly plant, then runs this same recall check against it.