Model year record

1972 MACK U

4 recall campaigns on file for this model year. No owner complaints on file.

Recalls

Recall campaignNHTSA 78V171000

Steering: linkages: knuckle: spindle: arm

Component
Steering: linkages: knuckle: spindle: arm
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
2,100
Reported to NHTSA
1978-08-08
Owners notified
1979-08-10

Defect description

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.

Manufacturer remedy

DEALER WILL INSPECT AND, IF NECESSARY, REPLACE THE LEFT STEERING KNUCKLE WITH AN IMPROVED TYPE OF KNUCKLE.

Recall campaignNHTSA 77V173000

Engine and engine cooling: cooling system: fan

Component
Engine and engine cooling: cooling system: fan
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
48,000
Reported to NHTSA
1977-10-12
Owners notified
1978-03-23

Defect description

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.

Manufacturer remedy

DEALER WILL REPLACE THE ORIGINAL FAN WITH A STEEL FIXED BLADE FAN, FREE OF CHARGE.

Recall campaignNHTSA 75V118000

Suspension: multiple axle

Component
Suspension: multiple axle
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
414
Reported to NHTSA
1975-06-23
Owners notified
1975-11-11

Manufacturer remedy

No remedy is listed yet. This typically indicates the manufacturer reported the defect before finalizing a repair procedure.

Recall campaignNHTSA 74V032000

Power train: axle assembly: banjo housing

Component
Power train: axle assembly: banjo housing
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
9,019
Reported to NHTSA
1974-02-25
Owners notified
1974-08-13

Manufacturer remedy

No remedy is listed yet. This typically indicates the manufacturer reported the defect before finalizing a repair procedure.

Owner complaints

A complaint is one person's report to a federal agency. It is not a finding.

No complaints recorded for this model year.

Safety recall repairs are provided free of charge by franchised dealers, regardless of vehicle age or mileage. This page displays aggregated data for the model year. To check recall status for a specific vehicle, search its VIN at nhtsa.gov.