Recall 77V173000: 1972–1977 Mack RD and 1 other model
- Report received
- Oct 12, 1977
- Manufacturer
- Mack trucks, incorporated
- Potentially affected
- 48,000vehicles
- Model years
- 1972–1977
Check your own vehicle. A recall applies only to vehicles within the affected build range. Enter your VIN at nhtsa.gov/recalls. Recall repairs are free at a franchised dealer.
What NHTSA recorded
The flex blade fans on the involved vehicles may develop cracks in the laminated stiffener as a result of fatigue during operation. If such a condition exists and the cracks go undetected, continued operation could cause pieces of the stiffener to break off.
Remedy
Dealer will replace the original fan with a steel fixed blade fan, free of charge.
Affected model years
Pages for each model year show complaints, parts, mileage and other recalls.
- 1972 Mack DM0 complaints
- 1973 Mack DM0 complaints
- 1974 Mack DM0 complaints
- 1975 Mack DM0 complaints
- 1976 Mack DM0 complaints
- 1977 Mack DM0 complaints
- 1972 Mack RD0 complaints
- 1973 Mack RD0 complaints
- 1974 Mack RD0 complaints
- 1975 Mack RD0 complaints
- 1976 Mack RD0 complaints
- 1977 Mack RD0 complaints
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.