How many recalls does the 2021 Kenworth T800B have?

NHTSA lists 5 recall campaigns for the 2021 Kenworth T800B as of October 16, 2026. Each includes the defect description, safety consequence, and the remedy Kenworth will perform. New recalls can be issued at any time; this page is refreshed from NHTSA daily.

How do I tell if my 2021 Kenworth T800B is affected by a recall?

Enter your 17-character VIN — stamped at the base of the windshield on the driver side and on the door jamb sticker — at nhtsa.gov/recalls. NHTSA's VIN lookup shows whether your specific vehicle has an unrepaired recall; the list on this page covers every campaign for the 2021 Kenworth T800B.

Are recall repairs on a 2021 Kenworth T800B free?

Usually. Federal law requires Kenworth to remedy recalls on the 2021 T800B free of charge at an authorized Kenworth dealer, regardless of how many owners the vehicle has had or how many miles are on the odometer — unless it was first sold more than 15 years before the recall was issued (5 years for tires).

Does a recall on the 2021 Kenworth T800B affect resale value?

An open recall can reduce resale value; a recall that has been repaired (documented in the vehicle history report) generally does not. Before you buy or sell a used 2021 Kenworth T800B, check the VIN at nhtsa.gov/recalls to confirm every recall has been remedied.

How many owner complaints are on file for the 2021 Kenworth T800B?

No owner complaints have been filed with NHTSA on the 2021 Kenworth T800B.

NHTSA vehicle safety data

2021 Kenworth T800B Recalls, Ratings & Complaints

The 2021 Kenworth T800B has 5 NHTSA recall campaigns and 0 owner complaints on file as of October 16, 2026. Recall repairs are usually free at an authorized Kenworth dealer.

NHTSA recall and complaint data for the 2021 Kenworth T800B. Recall data is refreshed daily from NHTSA.

Pre-purchase inspection checklist → Reliability & 5-year cost forecast →

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

NHTSA #24V915000

Reported December 9, 2024 · PACCAR Incorporated

Potentially affected: 220,764 vehicles

Defect description

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.

Safety consequence

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.

Manufacturer remedy

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.

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 nhtsa.gov.

SEAT BELTS

NHTSA #23V717000

Reported October 26, 2023 · PACCAR Incorporated

Potentially affected: 3,841 vehicles

Defect description

PACCAR Incorporated (PACCAR) is recalling certain 2020 Kenworth T660, 2018-2024 Kenworth T800 and W900 vehicles. An additional spacer may have been added to the joint that connects the seat to the seat belt tether and buckle, causing an unsecured connection.

Safety consequence

An unsecured seat belt connection may not properly restrain an occupant during a crash, increasing their risk of injury.

Manufacturer remedy

Dealers will inspect and remove the additional spacer and replace the bolt, as necessary, free of charge. Owner letters were mailed March 20, 2024. Owners may contact PACCAR's customer service at 1-425-828-5888. PACCAR's number for this recall is 23KWK.

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.nhtsa.gov.

FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL

NHTSA #21V391000

Reported May 26, 2021 · PACCAR Incorporated

Potentially affected: 612 vehicles

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.

ENGINE

NHTSA #21V080000

Reported February 17, 2021 · PACCAR Incorporated

Potentially affected: 132 vehicles

Defect description

PACCAR Incorporated (PACCAR) is recalling certain 2021-2022 Kenworth T680, T880, W990, T800, W900 and Peterbilt 579, 567, 389, 367 vehicles equipped with a Cummins X15 engine. The capscrews that attach the flywheel to the crankshaft may have been improperly torqued, allowing the flywheel to detach.

Safety consequence

A detached flywheel can cause loss of drive power, increasing the risk of a crash. Additionally, driveline pieces may be ejected from the engine compartment, increasing the risk of injury.

Manufacturer remedy

PACCAR will notify owners, and dealers will properly torque the capscrews and the engine will also be inspected for damage and, if necessary, repaired, free of charge. The recall began on March 29, 2021. 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 21KWA and 21PBB.

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.

POWER TRAIN:AXLE ASSEMBLY

NHTSA #20V506000

Reported August 26, 2020 · PACCAR Incorporated

Potentially affected: 1,097 vehicles

Defect description

PACCAR Incorporated (PACCAR) is recalling certain 2020-2021 Peterbilt 348, 365, 367, 389, 520, 567 and Kenworth T800, T880, W900, W990 vehicles equipped with Watson and Chalin steerable lift axle suspension systems (model SL2065). The axles may have lower rear pivot bolts that are not long enough to sufficiently engage the locking feature of the corresponding nuts.

Safety consequence

The short screws can cause the hardware to separate from the suspension system and become road hazards, increasing the risk of a crash and/or injury.

Manufacturer remedy

PACCAR will notify owners, and dealers will inspect suspect chassis and replace the pivot bolts, as necessary, free of charge. The recall began September 29, 2020. Owners may contact Kenworth customer service at 1-425-828-5888 and Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for this recall is 20PBE and 20KWC.

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.

Other Kenworth T800B model years

Check your 2021 Kenworth T800B VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Kenworth T800B at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

Check a Kenworth VIN