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Recall campaign84V140000

Recall 84V140000: Mack trucks, incorporated

Trailer hitches › Fifth wheel assembly
Report received
Nov 7, 1984
Manufacturer
Mack trucks, incorporated
Potentially affected
64vehicles
Model years
—

Check your own vehicle. A recall applies only to vehicles within the affected build range. Enter your VIN at nhtsa.gov/recalls. Recall repairs are free at a franchised dealer.

What NHTSA recorded

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.

Remedy

The dealer will inspect and remove the fifth wheel and reweld the mounting angles at no charge to the owner.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.