- Vehicles
- 3,308
- Built between
- Jul 1984 – Oct 1985
- Models
- 2
- Recall type
- Vehicle
- Initiated by
- Manufacturer
- Owners notified
- 26 November 1986
- Repaired
- Not reported
- Unrepaired
- Not reported
Does this affect my vehicle?
This recall covers vehicles built between July 1984 and October 1985. If yours was built outside that window, it is not part of this recall.
- 1984-1985 Mack MR600PBuilt July 1984 to October 1985
- 1984-1985 Mack MS250PBuilt July 1984 to October 1985
What the defect is
The quick release valve support bracket mounted on the axle may crack. This causes fatigue failure of the steel air lines leading to the rear parking brakes and chassis service brakes resulting in sudden loss of air pressure. Consequence of defect: this sudden loss of air to the brake chambers will result in automatic actuation of rear parking brake causing sudden rear wheel lockup which may contribute to an accident.
What gets fixed
INSTALL A REDESIGNED VALVE SUPPORT BRACKET.
Timeline
- Vehicles builtJuly 1984 to October 1985
- Recall reported to NHTSA26 November 1985
- Owners notified26 November 1986
Your rights
A safety recall repair is free. Under US federal law the manufacturer must fix a safety defect at no cost to you — no charge for parts, labor or diagnosis — whether or not you are the original owner. A dealer cannot charge you for recall work, and cannot require you to have bought the vehicle from them.
That entitlement is not unlimited. It applies where the vehicle was first sold less than 15 years before the recall was announced — 5 years for tires. Past that a manufacturer may still do the repair free of charge, and many do, but they are no longer obliged to. This recall was reported on 26 November 1985.
To arrange the repair, contact any franchised dealer for the brand. If a dealer refuses the work or tries to charge for it, you can report that to NHTSA at nhtsa.gov/recalls or on 1-888-327-4236.
Official source
- Recalling manufacturer
- MACK TRUCKS, INCORPORATED
- Recall initiated by
- MFR
Everything on this page — the models listed, the build dates and the repair figures — comes from the manufacturer's filing to NHTSA and describes the vehicle line as a whole, not any individual car. Only the manufacturer can confirm whether a specific vehicle is affected, and whether its recall work has already been carried out. Check yours by VIN and read the official notice at nhtsa.gov/recalls.
Additional notes
System: parking brakes air lines, quick release valve bracket.vehicle description: mid-liner trucks.
Check your own vehicle
This page describes the recall, not any one car. To see which recalls cover a specific vehicle, search by make, model and year.
A VIN lookup here identifies your vehicle and shows recalls issued for that make, model and year. It cannot tell you what is still open on your individual car - only the manufacturer knows that. Search by VIN instead, or check your VIN at nhtsa.gov for whether a recall is still open on your individual car.