Peterbilt 536, 537 +1 more: Power train — driveline

Affects Peterbilt 536, 537, 548 · 2023–2024 — about 72 vehicles.

The hazard

Loose fasteners may allow the driveline to separate from the truck, increasing the risk of a crash.

What to do

Dealers will apply adhesive thread-lock and replace the fasteners, free of charge. Owner notification letters are expected to be mailed September 19, 2023. Owners may contact PACCAR's customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 23KWE and 23PBE.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational