Engine and engine cooling: engine (Western)
Vehicle recall 81V-087. NHTSA received MACK TRUCKS, INCORPORATED’s report on Jul 8, 1981.
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The short answer
NHTSA received MACK TRUCKS, INCORPORATED’s report on Jul 8, 1981. 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?
The notice gives no hazard in a field of its own.
DUE TO A DEFICIENCY IN MATERIAL STRENGTH, THE FRONT ENGINE SUPPORT BRACKETS ON THE INVOLVED VEHICLES MAY DEVELOP CRACKS THAT COULD LEAD TO BRACKET FAILURE.
THIS WOULD CAUSE THE ENGINE TO DROP DOWN INTO THE RADIATOR, DAMAGING THE SHROUD, ENGINE FAN, AND OTHER ASSOCIATED PARTS.
THE ENGINE THROTTLE COULD BE PULLED INTO FULL GOVERNED POSITION.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- NHTSA’s part: Engine and engine cooling: engine.
What should you do?
THE EXISTING SUPPORT BRACKETS WILL BE REPLACED WITH BRACKETS MADE OF DUCTILE IRON, AT NO CHARGE TO OWNER.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- How to reach the firm: VEHICLE DESCRIPTION: TRUCKS.SYSTEM: STRUCTURE; FRONT ENGINE SUPPORT BRACKETS.CONSEQUENCES OF DEFECT: WITH THE THROTTLE LOCKED IN THIS POSITION, THE DRIVERWOULD HAVE NO CONTROL OVER VEHICLE SPEED. LOSS OF VEHICLE CONTROL AND ANACCIDENT COULD FOLLOW.
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 15,000 vehicles potentially involved, across everything this recall names.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- Western RWL Seriesand 1978, 1979, 1980 and 1981, before the model years listed here
- Western WS Seriesand 1978, 1979, 1980 and 1981, before the model years listed here
- Western RWS Seriesand 1978, 1979, 1980 and 1981, before the model years listed here
- Western WL Seriesand 1978, 1979, 1980 and 1981, 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
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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.