# Recalls that may apply to the 2021 Peterbilt 337

A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.

## United States (NHTSA), as of 2026-10-19

- [24V915000](/recalls/nhtsa/24V915000.md), 2024-12-09: ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE. PACCAR Incorporated \(PACCAR\) is recalling certain 2021\-2025 Peterbilt and Kenworth vehicles, equipped with Bendix EC80 Advanced Electronic Control Units \(ECU\).  Please see the recall report for a complete list of models.  Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop functioning. Built 2020\-10\-26 to 2022\-05\-03.
- [21V391000](/recalls/nhtsa/21V391000.md), 2021-05-26: FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL. 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.

## Canada (Transport Canada), as of 2026-10-19

- [2021323](/recalls/tc/2021323.md), 2021-05-26: Fuel System. 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.

## Check a VIN

- [NHTSA recall lookup by VIN, United States](https://www.nhtsa.gov/recalls)
- [Transport Canada recall search, Canada](https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng)

Contains information licensed under the Open Government Licence – Canada.

JSON: [/v1/vehicles/2021_peterbilt_337/recalls](/v1/vehicles/2021_peterbilt_337/recalls)

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