The 1971 Mack Rs has 8 NHTSA recall campaigns affecting an estimated 17,137 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 6, 2026.
MACK TRUCKS CAMPAIGN NO N/A.WITH SN56 AND SW57 BOGIE HOUSINGS.BUILT MAR1971 THRU JUN 1972.TRUCKS.POSSIBILITY THAT THE BOGIE HOUSING WALL THICKNESSAT THE LEFT INNER WHEEL BEARING RACE MAY NOT MEET SPECIFIC DIMENSIONALREQUIREMENTS.IF THIS CONDITION EXISTS, IT COULD LEAD TO SPINDLE FAILURE,RESULTING IN LOSS OF A REAR…
MACK TRUCKS CAMPAIGN NO N/A.MANUF'D FEB.1971 THRU JUNE 1973.TRUCKS.POSSIBILITY THAT THE ELECTRIC HORN MOUNTING BRACKET COULD CRACK AND FAIL.IFTHIS CONDITION EXISTS THE HORN COULD INTERFERE WITH STEERING SHAFT UNIVERSALJOINT AND CAUSE STEERING LOCKUP IN A LEFT HAND TURN SITUATION.(CORRECT BYINSPECTING AND REPLACING…
MACK TRUCK CAMPAIGN NO SCO 38.MANFD 7/22/1972 THRU 8/21/72.TRUCKS.POSSIBILITY THAT FRONT SHOCK ABSORBER MOUNTING BRACKET MAY FAIL.IF CONDITIONEXISTS, IT COULD ALLOW SHOCK ABSORBER TO INTERFERE WITH STEERING LINKAGE.(CORRECT BY INSPECTING AND INSTALLING IMPROVED LOWER SHOCK ABSORBER MOUNTINGBRACKETS WHERE…
MACK TRUCK CAMPAIGN NO SCO37.TRUCKS EQUIPPED W/RADL 5281 OR R170 REAR AXLE.POSSIBILITY THAT REAR SPRING CLAMP PLATE MAY DEVELOP CRACKS WHICH COULD LEAD TOCLAMP FAILURE.IF CLAMP FAILS IT WOULD PERMIT THE AXLE TO SHIFT ON SPRING ANDCOULD INTERFERE WITH VEHICLE CONTROL.(CORRECT BY INSPECTING AND REPLACINGSPRING CLAMP…
MACK SERVICE BULLETIN NO R1006.MACK WESTERN.TRUCKS.POSSIBILITY THAT POWERSTEERING CYLINDER TIE ROD CLAMP MAY FAIL.CLAMP FAILURE WILL RESULT IN LOSS OFPOWER STEERING ASSIST.COULD ALSO CAUSE BINDING CONDITION WHICH COULDINTERFERE WITH STEERING CONTROL.(CORRECT BY INSPECTING AND INSTALLING NEWIMPROVED CLAMP WHERE…
MACK SERVICE BULLETIN NO G1003.EQUIPPED WITH AMERICAN-BOSCH APE-8VBB FUELINJECTION PUMP.MANFD 9-70 THRU 10-16 1971.TRUCKS.POSSIBILITY THAT LINKCONNECTING GOVERNOR FULCRUM LEVER TO FUEL INJECTION PUMP CONTROL RACKS CANBREAK AND CAUSE LOSS OF FUEL DELIVERY CONTROLTO ENGINE.SHOULD THIS CONDITIONOCCUR, IT COULD IMPAIR…
MACK TRUCK CAMPAIGN NO U1001.SEPT.22, 1970 THRU APRIL 6, 1 971.TRUCKS.POSSIBILITY THAT FRONT HUB MAY BE DEFECTIVE.F AILURE OF FRONT AXLE HUB COULDRESULT IN LOSS OF VEHICLE CONTR OL.(CORRECT BY INSPECTING AND REPLACING HUBWHERE NECESSARY. ) VEHICLE CHASSIS WITH ROCKWELL-STANDARD FH901 OR FL901 FRONT AXL
MACK TRUCK CAMPAIGN NO N/A.WESTERN CHASSIS WITH FIBERGLASS H OOD.TRUCKTRACTORS.POSSIBILITY THAT NUT THAT SECURES ELECT RIC HORN BRACKET MOUNTED ONLEFT SPLASH APRON WHICH IS A PARTOF HOOD AND FENDER ASSEMBLY MAY LOOSEN.IFNUT BACKS OFF, HOR N MAY FALL INTO POSITION WHERE IT COULD LOCK STEERING SHAFTAN D INTERFERE WITH…
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1971 Mack Rs as of July 6, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.