Trailer hitches (Mack)
Vehicle recall 93V-024. NHTSA received MACK TRUCKS, INCORPORATED’s report on Feb 16, 1993.
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The short answer
NHTSA received MACK TRUCKS, INCORPORATED’s report on Feb 16, 1993. Copied from NHTSA on Oct 28, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
THIS CONDITION CAN CAUSE BOLT FAILURE AND ALLOW THEDRIVELINE TO SEPARATE FROM THE CARRIER ASSEMBLY.
THE CARRIER YOKE BOLTS WERE MANUFACTURED WITH WORN ROLLING THREAD DIES, CAUSING STRESS CONCENTRATIONS WHICH CAUSED CRACKS DURING THE QUENCHING PROCESS.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- NHTSA’s part: Trailer hitches.
What should you do?
REPLACE THE CARRIER YOKE BOLTS.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- How to reach the firm: SYSTEM: TRAILER YOKE.VEHICLE DESCRIPTION: HEAVY TRUCKS.
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 4,924 vehicles potentially involved, across everything this recall names.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- Mack MRand 1992 and 1993, before the model years listed here
- Mack MHand 1992 and 1993, before the model years listed here
- Mack RDand 1992 and 1993, before the model years listed here
- Mack DMand 1992 and 1993, before the model years listed here
- Mack CHand 1992 and 1993, before the model years listed here
- Mack RMand 1992 and 1993, before the model years listed here
- Mack CLand 1992 and 1993, before the model years listed here
- Mack RBand 1992 and 1993, before the model years listed here
Who is recalling it?
- Made by MACK TRUCKS, INCORPORATED.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt.
- Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
- This recall names only model years before 2015, which have no pages here. Your VIN, at NHTSA, says which recalls are open on a vehicle.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
-
National Highway Traffic Safety Administration, Recalls flat file before 2010 (FLAT_RCL_PRE_2010).
Released Oct 28, 2026 and checked Oct 28, 2026. Updated daily. Public domain (U.S. Government work).
Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 28, 2026.