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Kenworth capscrews that attach the flywheel to the crankshaft may have been improperly torqued, allowing the flywheel to detach.

NHTSA campaign 21V-080 · Reported February 17, 2021 · 132 vehicles affected

AFFECTED MODELS
Kenworth T680, T880, W900, W990, 367, 389, 567 and 579
VEHICLES AFFECTED
132
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.
COST
Free

The short version

PACCAR Incorporated reported a problem with the engine. Here is what owners need to know.

WHAT

The capscrews that attach the flywheel to the crankshaft may have been improperly torqued, allowing the flywheel to detach.

WHY IT MATTERS

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.

WHAT TO DO

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.

Affected vehicles

These model years are included in NHTSA campaign 21V-080.

YEAR RANGEMODEL
2021–2022Kenworth T680
2021–2022Kenworth T880
2021–2022Kenworth W900
2021Kenworth W990
2021–2022Peterbilt 367
2021–2022Peterbilt 389
2021–2022Peterbilt 567
2021–2022Peterbilt 579

What changed

Newest first. The record shows both when the recall began and what has changed since.

  1. Recall reported to NHTSA. LATEST

Drive one of these? Check your VIN to see if your specific vehicle is affected.

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What this record means

Data from the NHTSA recall database. A clean VIN check means no open federal recalls for that vehicle — not that it never had one.

Not affiliated

MyAutoRecalls is not affiliated with PACCAR Incorporated or the National Highway Traffic Safety Administration.