Engine and engine cooling: cooling system: fan (Mack)
Vehicle recall 93V-137. NHTSA received MACK TRUCKS, INCORPORATED’s report on Aug 20, 1993.
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The short answer
NHTSA received MACK TRUCKS, INCORPORATED’s report on Aug 20, 1993. Copied from NHTSA on Oct 27, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
IF COMPLETE FRACTURE OF THE FAN BLADE OCCURS, IT COULDBE PROPELLED OUTSIDE THE FAN SHROUD, INJURING PERSON(S) IN THE VICINITY OFTHE TRUCK.
THE ENGINE COOLING FAN BLADES MAY BREAK DUE TO INADEQUATE BLADE STRENGTH AROUND THE RIVETS THAT ATTACH THE BLADES TO THE FAN SPIDER.
NHTSA, Recalls flat file before 2010. Released Oct 27, 2026. Updated daily.
- NHTSA’s part: Engine and engine cooling: cooling system: fan.
What should you do?
AN IMPROVED FAN WILL BE INSTALLED ON THESE VEHICLES.
NHTSA, Recalls flat file before 2010. Released Oct 27, 2026. Updated daily.
- How to reach the firm: SYSTEM: ENGINE; COOLING FAN.VEHICLE DESCRIPTION: CLASS 8 HEAVY TRUCKS EQUIPPED WITH 6 BLADED FANSMANUFACTURED BY ENGINEERED COOLING SYSTEMS, INC.
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 11,000 vehicles potentially involved, across everything this recall names.
NHTSA, Recalls flat file before 2010. Released Oct 27, 2026. Updated daily.
- Mack FDMand 1991, 1992 and 1993, before the model years listed here
- Mack CHand 1991, 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 27, 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
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National Highway Traffic Safety Administration, Recalls flat file before 2010 (FLAT_RCL_PRE_2010).
Released Oct 27, 2026 and checked Oct 27, 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 27, 2026.