Peterbilt 579, 587: Equipment

Affects Peterbilt 579, 587 · 2011–2013 — about 290 vehicles.

The hazard

If the fifth wheel and locking mechanism are sufficiently damaged, the locking mechanism may fail to operate as intended and the trailer may unexpectedly detach from the tractor, increasing the risk of a crash.

What to do

PACCAR will notify owners, and dealers will replace the fifth wheel with an Ultra NT model fifth wheel, free of charge. The recall began on December 7, 2015. Owners may contact Kenworth customer service at 1-425-828-5000 or Peterbilt customer service at 1-940-591-4000. Paccar's numbers for this recall are 15KWP (Kenworth) and 1015M (Peterbilt).

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