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2021 Kenworth T440 recalls

NHTSA campaigns received 2010 to 2026-09-30 that list the 2021 model year.

The 2021 Kenworth T440 is covered by 4 recall campaigns. Repairs are free at a dealer; check your VIN to see which are still open.

CampaignReceivedComponent
24V9150002024-12-09Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
24V1450002024-02-23Service Brakes, Air › Supply › Reservoir/Tank
21V6010002021-08-03Fuel System, Diesel › Delivery › Hoses, Lines/Piping, And Fittings
21V3910002021-05-26Fuel System, Diesel › Fuel Injection System › Fuel Rail

Each recall: problem, risk and fix

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module (24V915000, 2024-12-09)

Problem: 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.

Risk: Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may not function properly or at all, increasing the risk of a crash.

Free fix: Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed February 3, 2025. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's numbers for this recall are 24KWL and 24PBL.

PACCAR Incorporated · 220,764 vehicles · NHTSA record

Service Brakes, Air › Supply › Reservoir/Tank (24V145000, 2024-02-23)

Problem: PACCAR Incorporated (PACCAR) is recalling certain 2009-2021 Kenworth C500, 2012-2021 Kenworth T440, 2009-2015 Kenworth T660, 2015-2024 Kenworth T680, 2009-2024 Kenworth T800, 2009-2020 Kenworth T370, 2014-2023 Kenworth T880, 2011-2016 Kenworth T470, 2023 Kenworth T480, and 2009-2019 Kenworth W900 vehicles. The air tanks have an insufficient volume of air for the brake system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."

Risk: Insufficient air volume can reduce braking performance and increase the risk of a crash.

Free fix: Dealers will install the correct volume air tanks, free of charge. Owner notification letters were mailed August 12, 2024. Additional owner notification letters were mailed October 27, 2025. Owners may contact PACCAR customer service at 1-425-828-5888. PACCAR's number for this recall is 24KWD.

PACCAR Incorporated · 936 vehicles · NHTSA record

Fuel System, Diesel › Delivery › Hoses, Lines/Piping, And Fittings (21V601000, 2021-08-03)

Problem: 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.

Free fix: 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.

PACCAR Incorporated · 688 vehicles · NHTSA record

Fuel System, Diesel › Fuel Injection System › Fuel Rail (21V391000, 2021-05-26)

Problem: 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.

Free fix: 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.

PACCAR Incorporated · 612 vehicles · NHTSA record

A recall covers a make, model and year range; whether one specific vehicle is affected or already repaired is confirmed by VIN at nhtsa.gov/recalls or by a dealer. Recall repairs are free. Source: NHTSA recall flat file (public domain), campaigns received since January 2010.

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