Model year record

1974 MACK WS

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

Recalls

Recall campaignNHTSA 78V068000

Service brakes, air: antilock: control unit/module

Component
Service brakes, air: antilock: control unit/module
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
9,700
Reported to NHTSA
1978-04-04
Owners notified
1978-09-01

Defect description

AN AXLE "NO BRAKE" CONDITION COULD RESULT FROM AN EATON CONTROLLER INTERNAL ELECTRICAL MALFUNCTION. THIS CONDITION MAY CAUSE THE ANTI-WHEEL LOCK VALVE SOLENOID TO BE CONTINUOUSLY ENERGIZED AND PREVENT THE BRAKES FROM BEING APPLIED ON ONE OF THE AXLES. AS A RESULT, THE ANTI-WHEEL LOCK WARNING LAMP IS NOT ACTIVATED.

Manufacturer remedy

THE DEALER WILL INSPECT AND, IF NECESSARY, REPLACE THE ANTI-WHEEL LOCK CONTROLLER WITHOUT CHARGE TO OWNER.

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 77V011000

Steering: gear box (other than rack and pinion)

Component
Steering: gear box (other than rack and pinion)
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
2,200
Reported to NHTSA
1977-01-01
Owners notified
1977-03-29

Defect description

THE LOWER STEERING SHAFT YOKE CLAMP BOLTS ON THE INVOLVED VEHICLES MAY NOT HAVE BEEN SUFFICIENTLY TIGHTENED. SHOULD THESE BOLTS LOSSEN AND COME OFF, THE LOWER STEERING SHAFT COULD SEPARATE FROM THE STEERING GEAR.

Manufacturer remedy

THE DEALER WILL SECURE THE CLAMP BOLT AND MAKE THE NECESSARY MODIFICATIONS ON THE LOWER STEERING SHAFT, FREE OF CHARGE.

Recall campaignNHTSA 76V083000

Service brakes, air: drum: chamber

Component
Service brakes, air: drum: chamber
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
404
Reported to NHTSA
1976-06-09
Owners notified
1976-10-04

Manufacturer remedy

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

Recall campaignNHTSA 75V141000

Service brakes, air: supply: check valve

Component
Service brakes, air: supply: check valve
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
935
Reported to NHTSA
1975-07-24
Owners notified
1975-11-17

Manufacturer remedy

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

Recall campaignNHTSA 75V140000

Steering: steering wheel/handle bar

Component
Steering: steering wheel/handle bar
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
402
Reported to NHTSA
1975-07-24
Owners notified
1975-12-15

Manufacturer remedy

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

Recall campaignNHTSA 75V060000

Service brakes, air: drum: drum

Component
Service brakes, air: drum: drum
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
600
Reported to NHTSA
1975-04-15
Owners notified
1975-08-05

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.