Vehicle recall 81V086000 · July 8, 1981
Mack R600, R700 and 2 more models
The involved trucks have pitman arms with timing marks and serrations located 8 degrees out of proper alignment.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- The involved trucks have pitman arms with timing marks and serrations located 8 degrees out of proper alignment. When the chassis is raised to the maximum condition with the wheels suspended or dropped into a deep hole, the pitman arm and drag link can go into toggle position.
- Remedy
- Upon inspection, all defective pitman arms will be replaced with properly timed arms.
- Notes
- Vehicle description: trucks equipped with left hand steering and 9QC3239-P3PITMAN arm.system: steering; steering gear lever (pitman arm).consequences of defect: under these conditions the steering would lock,resulting in loss of vehicle control and, possibly, an accident.
Recall details
- NHTSA campaign
- 81V086000
- Reported to NHTSA
- July 8, 1981
- Filed by
- MACK TRUCKS, INCORPORATED
- Owner notification
- May 4, 1984
- Vehicles potentially affected
- 100
- Initiated by
- the manufacturer
- Components
- Steering › Linkages
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Mack R600 (1981): 1981
- Mack R700 (1981): 1981
- Mack RD400 (1981): 1981
- Mack RD600 (1981): 1981
Has your Mack been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Mack dealer can also check your VIN. Recall repairs are free.