The 1973 Mack Mb has 3 NHTSA recall campaigns affecting an estimated 2,562 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.
DEFICIENCIES, IN THE FORM OF FORGING LAPS, CRACKS AND EXCESSIVE DECARBURIZATION DURING HEAT TREATMENT, EXIST IN THE STEERING KNUCKLES. STRESSES IMPOSED WITH INTEGRAL HYDRAULIC POWER STEERING MAY LEAD TO A FAILURE IN THE AREA OF THE STEERING ARM ATTACHING BOSS. THIS TYPE OF FAILURE WOULD CAUSE LOSS OF STEERING CONTROL.
DEALER WILL INSPECT AND, IF NECESSARY, REPLACE THE LEFT STEERING KNUCKLE WITH AN IMPROVED TYPE OF KNUCKLE.
MACK TRUCKS CAMPAIGN NO SC060.TRUCKS MFG'D 1967 THRU JAN.31, 1973.POSSIBILITY THAT THE SUSPENSION TRUNNION BRACKETS MAY DEVELOP CRACKS.IF SUCHCONDITION EXISTS AND CRACKS ARE NOT DETECTED, CONTINUED OPERATION COULDULTIMATELY LEAD TO TRUNNION TUBE SEPARATION FROM THE TRUNNION AND PERMIT AXLEASSEMBLY DISLOCATION.FAILURE…
MACK TRUCK CAMPAIGN NO SCO#50.FIRE APPARATUS EQUIPPED WITH CAB LIFT CYLINDER.POSSIBILITY THAT THE VELOCITY FUSE IN THE CAB HYDRAULIC LIFT CYLINDER MAYFAIL.THIS FUSE IS INCORPORATED IN THE LIFT CYLINDER TO PREVENT THE CABFALLING UNCHECKED IN THE EVENT OF CERTAIN FAILURES, SUCH AS A BROKEN HYDRAULICFLUID HOSE.(CORRECT…
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1973 Mack Mb as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.