Defect
PITMAN ARM PINCH BOLTS MAY HAVE BEEN INADEQUATELY TORQUED.
Consequence
THIS COULD ALLOW PITMAN ARM TO SLIP ON THE STEERING GEAROUTPUT SHAFT RESULTING IN LOSS OF CONTROL AND AN ACCIDENT.
Remedy
RETORQUE PINCH BOLTS AND RESET AS NECESSARY.
Verdict · NHTSA data
Limited data — recalls on file
NHTSA has just 0 complaints on file for the 1991 Kenworth W900 — too few to judge reliability from owner reports alone — but one recall campaign applies to this year, so any used example should have its VIN checked for completed recall work.
0
NHTSA complaints
1
Recalls
0
Investigations
0
Crash-involved
0
Fires reported
0
Injuries
0
Deaths
—
NCAP overall
1 NHTSA recall campaign on file. Recall repairs are free at franchised dealers.
Defect
PITMAN ARM PINCH BOLTS MAY HAVE BEEN INADEQUATELY TORQUED.
Consequence
THIS COULD ALLOW PITMAN ARM TO SLIP ON THE STEERING GEAROUTPUT SHAFT RESULTING IN LOSS OF CONTROL AND AN ACCIDENT.
Remedy
RETORQUE PINCH BOLTS AND RESET AS NECESSARY.
The record is thin — 0 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 1 recall should be verified as completed.
Yes — NHTSA lists 1 recall campaign affecting the 1991 Kenworth W900. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.