Recall campaign · NHTSA 93V024000

Trailer hitches

MACK TRUCKS, INCORPORATED filed this campaign with NHTSA on 1993-02-16.

Recall campaignNHTSA 93V024000

Trailer hitches

Component: Trailer hitches
Manufacturer: MACK TRUCKS, INCORPORATED
Vehicles affected: 4,924
Reported to NHTSA: 1993-02-16
Owners notified: 1993-03-24

Defect description

THE CARRIER YOKE BOLTS WERE MANUFACTURED WITH WORN ROLLING THREAD DIES, CAUSING STRESS CONCENTRATIONS WHICH CAUSED CRACKS DURING THE QUENCHING PROCESS.

Safety risk

THIS CONDITION CAN CAUSE BOLT FAILURE AND ALLOW THEDRIVELINE TO SEPARATE FROM THE CARRIER ASSEMBLY.

Manufacturer remedy

REPLACE THE CARRIER YOKE BOLTS.

Notes

SYSTEM: TRAILER YOKE.VEHICLE DESCRIPTION: HEAVY TRUCKS.

Scope of coverage

16 model years across 8 models.

Model	Years on record
MACK CH	1993 1992
MACK CL	1993 1992
MACK DM	1993 1992
MACK MH	1993 1992
MACK MR	1993 1992
MACK RB	1993 1992
MACK RD	1993 1992
MACK RM	1993 1992

Safety recall repairs are provided free of charge by franchised dealers, regardless of vehicle age or mileage. This page displays aggregated data for the model year. To check recall status for a specific vehicle, search its VIN at nhtsa.gov.