Trailer hitches: fifth wheel assemblyRecall 84V-140 · Mack vehicles

MACK TRUCKS, INCORPORATED recall 84V-140 covers 64 Mack vehicles for a trailer hitches: fifth wheel assembly problem, reported to NHTSA on November 7, 1984.

Vehicles repairedNo manufacturer report yet

Vehicles affected642 models

ReportedNov 7, 1984Owner notice date not listed

Complaints since0Same system, after the recall

Source: NHTSA recall 84V140000 and manufacturer quarterly reports. Started by the manufacturer.

What's wrong

The problem

DUE TO IMPROPER AND INADEQUATE WELDING PRACTICES, THE FIFTH WHEEL ON THE INVOLVED VEHICLES IS DEFECTIVE. FRAME MOUNTED SUPPORTS MAY HAVE INCOMPLETE OR POOR QUALITY WELDS. THE WELDS COULD SUBSEQUENTLY FAIL ALLOWING SEPARATION OF THE TRACTOR FROM THE TRAILER.

What to do

The fix

THE DEALER WILL INSPECT AND REMOVE THE FIFTH WHEEL AND REWELD THE MOUNTING ANGLES AT NO CHARGE TO THE OWNER.

VEHICLE DESCRIPTION: TRUCK TRACTORS.SYSTEM: STRUCTURE; FIFTH WHEEL ASSEMBLY.CONSEQUENCES OF DEFECT: IF THE TRAILER SEPARATES DURING OPERATION AN ACCIDENTAND PERSONAL INJURY COULD RESULT.

Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.

2 models

Vehicles in this recall

Mack MH1982, 1983, 1984

Mack R1982, 1983, 1984

Built from May 1, 1984 to March 1, 1985. Not every vehicle in these model years is included; check by VIN.