How many recalls does the 1979 Mack R have?

The 1979 Mack R has 3 NHTSA safety recall campaigns on record.

How do I check if my 1979 Mack R has an open recall?

Enter your 17-character VIN at NHTSA's official recall lookup (nhtsa.gov/recalls) to see open, unrepaired recalls for your specific vehicle. Recall repairs are free.

1979 Mack R Recalls

Recalls on record Updated July 2026

The 1979 Mack R has 3 NHTSA recall campaigns affecting an estimated 24,786 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.

Recall campaigns

SUSPENSION 79V171000 1979-07-12 1,706 affected

Defect

THE SPRING SEAT PLATE, LOCATED BETWEEN THE AXLE HOUSING AND THE SUSPENSION SPRINGS, MAY DEFORM DUE TO SPRING BENDING. AS A RESULT, THE CLAMPING FORCE IN THE ASSEMBLY MAY BE REDUCED. LOSS OF CLAMPING FORCE COULD CAUSE SPRING FAILURE AND THE AXLE WILL DISLOCATE. ALSO, THE TIRE COULD COME INTO CONTACT WITH THE SPRING.

Remedy

THE DEALER WILL REPLACE THE EXISTING SPRING SEAT WITH A NEWLY FABRICATED SEAT WHICH IS WELDED TO THE HOUSING. AN IMPROVED SPRING CLAMPING PLATE AND NEW SPRINGS WILL ALSO BE INSTALLED WITHOUT CHARGE.

STEERING 79V165000 1979-07-09 80 affected

Defect

THE PINCH BOLT HOLE CENTER TO STEERING GEAR INPUT SHAFT ON THE LOWER YOKE DIMENSION EXCEEDS SPECIFICATIONS. IF THE PINCH BOLT BECOMES LOOSE, IT WILL NOT ENGAGE THE STEERING GEAR INPUT SHAFT NOTCH AND THE SHAFT COULD SLIP OFF.

Remedy

THE PROPER STEERING GEAR INPUT SHAFT YOKE WILL BE INSTALLED WITHOUT CHARGE TO OWNER.

ENGINE AND ENGINE COOLING 79V133000 1979-05-31 23,000 affected

Defect

IN THE EVENT OF TURBOCHARGER COMPRESSOR WHEEL FAILURE, ONE OR MORE OF THE FOUR CAPSCREWS THAT HOLD THE TURBOCHARGER TOGETHER MAY BE STRUCK BY PARTS OF THE COMPRESSOR WHEEL, RESULTING IN THE CAPSCREWS BEING DAMAGED. IF THESE CAPSCREWS ARE DAMAGED TO THE POINT THAT THEY ALLOW THE COMPRESSOR BACK PLATE TO DISLOCATE FROM…

Remedy

DEALER WILL INSTALL A SHIELD FOR THE HEADS OF THE FOUR CAPSCREWS, ALONG WITH STRONGER SAE 8 GRADE 8 CAPSCREWS, IF NECESSARY, AT NO COST TO OWNER.

Sources & methodology

Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1979 Mack R as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.