Mack Trucks, Inc.: Safety Recalls in 1993

Updated on March 19, 2026.

There were 3 safety recalls made by Mack Trucks, Inc. in 1993. See the details of the recalls below.

You can also see similar information for other manufacturers.

Data Source: NHTSA.

See this for other years:

November 1, 1993

(Campaign #: NR (Not Reported))

POWER TRAIN:DRIVELINE (INDICATOR FORWARD OR REVERS

THE DRIVESHAFT TO THE FRONT DRIVING AXLE IS SECURED TO A BRACKET USING TWO PILLOW BLOCKS. THESE BLOCKS ARE OF INSUFFICIENT STRENGTH TO SUPPORT THE DRIVESHAFT AND COULD FAIL.

NHTSA ID: 93V176000

Component: POWER TRAIN

# of Units Affected: 130

Consequence Summary:

PILLOW BLOCK FAILURE ALLOWS THE DRIVELINE (JACKSHAFT)TO DROP DOWN ONTO THE ROADWAY AND CREATE A SAFETY HAZARD TO OTHER VEHICLES.

Corrective Action:

MACK WILL INSTALL THICKER PILLOW BLOCKS AND SUPPORT U-BOLTS.

Park Outside Advisory: No

Do not Drive Advisory: No

View Full Recall Details

August 20, 1993

(Campaign #: NR (Not Reported))

ENGINE COOLING SYSTEM:FAN

THE ENGINE COOLING FAN BLADES MAY BREAK DUE TO INADEQUATE BLADE STRENGTH AROUND THE RIVETS THAT ATTACH THE BLADES TO THE FAN SPIDER.

NHTSA ID: 93V137000

Component: ENGINE AND ENGINE COOLING

# of Units Affected: 11,000

Consequence Summary:

IF COMPLETE FRACTURE OF THE FAN BLADE OCCURS, IT COULDBE PROPELLED OUTSIDE THE FAN SHROUD, INJURING PERSON(S) IN THE VICINITY OFTHE TRUCK.

Corrective Action:

AN IMPROVED FAN WILL BE INSTALLED ON THESE VEHICLES.

Park Outside Advisory: No

Do not Drive Advisory: No

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February 16, 1993

(Campaign #: NR (Not Reported))

EQUIPMENT:OTHER PIECES:TRAILER HITCHES AND ATTACHM

THE CARRIER YOKE BOLTS WERE MANUFACTURED WITH WORN ROLLING THREAD DIES, CAUSING STRESS CONCENTRATIONS WHICH CAUSED CRACKS DURING THE QUENCHING PROCESS.

NHTSA ID: 93V024000

Component:

# of Units Affected: 4,924

Consequence Summary:

THIS CONDITION CAN CAUSE BOLT FAILURE AND ALLOW THEDRIVELINE TO SEPARATE FROM THE CARRIER ASSEMBLY.

Corrective Action:

REPLACE THE CARRIER YOKE BOLTS.

Park Outside Advisory: No

Do not Drive Advisory: No

View Full Recall Details