There have been 23 safety recalls for the Mack WS. The most recent recalls are shown below. Table 1 and Table 2 show the historical recalls and the recall statistics by the model year of the Mack WS.
| Recalled Vehicles: 1983 Mack Dm Series, 1984 Mack Dm Series, 1983 Mack Mc Series, 1984 Mack Mc Series, 1983 Mack MH, 1984 Mack MH, 1983 Mack R Series, 1984 Mack R Series, 1983 Mack Rd Series, 1984 Mack Rd Series, 1983 Mack Rm Series, 1984 Mack Rm Series, 1983 Mack U Series, 1984 Mack U Series, 1983 Mack WS, 1984 Mack WS, 1983 Western Rl Series, 1984 Western Rl Series, 1983 Western Rs Series, 1984 Western Rs Series, 1983 Western Rwl Series, 1984 Western Rwl Series, 1983 Western Rws Series, 1984 Western Rws Series, 1983 Western Wl Series, 1984 Western Wl Series, 1983 Western Ws Series, 1984 Western Ws Series |
| Component: STEERING:WHEEL AND HANDLE BAR |
| Recall Summary: Improper steering clamp bolts and torque applied during installation. The bolt could fail, allowing the steering yoke to become loose. ... Details of this recall 🔎 |
| Recalled Vehicles: 1980 Mack RWL, 1981 Mack RWL, 1980 Mack RWS, 1981 Mack RWS, 1980 Mack WL, 1981 Mack WL, 1980 Mack WS, 1981 Mack WS |
| Component: STEERING:GEAR BOX:SHAFT PITMAN |
| Recall Summary: The pitman arm, a lever that transmits turning movements from the steering gear to the steering linkage, may loosen or break at its connection to the steering linkage. The failure can prevent turning attempts from having any effect.... Details of this recall 🔎 |
| Recalled Vehicles: 1979 Mack F, 1979 Mack FM, 1979 Mack MB, 1979 Mack MC, 1979 Mack MR, 1979 Mack R, 1979 Mack RL, 1979 Mack RM, 1979 Mack RS, 1979 Mack RWL, 1979 Mack RWS, 1979 Mack WL, 1979 Mack WS |
| Component: SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY |
| Recall Summary: The spring seat plate, located between the axle housing and the suspension springs, may deform due to spring bending. As a result, the clamping force in the assembly may be reduced. Loss of clamping force could cause spring failure and the axle will dislocate.... Details of this recall 🔎 |
| Recalled Vehicles: 1979 Mack RL, 1979 Mack RS, 1979 Mack RWL, 1979 Mack RWS, 1979 Mack WL, 1979 Mack WS |
| Component: STEERING:WHEEL AND HANDLE BAR |
| Recall Summary: The flange head pinch bolts used in the yokes of the steering shaft assemblies may have been overstressed due to the bolts not being tightened to specifications. As a result, the pinch bolts could break while in service. ... Details of this recall 🔎 |
| Recalled Vehicles: 1977 Mack RWL, 1978 Mack RWL, 1979 Mack RWL, 1977 Mack RWS, 1978 Mack RWS, 1979 Mack RWS, 1977 Mack WL, 1978 Mack WL, 1979 Mack WL, 1977 Mack WS, 1978 Mack WS, 1979 Mack WS |
| Component: STEERING:LINKAGES |
| Recall Summary: The pitman arm retaining nut may not have been torqued to manufacturer specifications. This could result in inadequate retention of the nut at the output shaft, allowing the pitman arm to become loose. ... Details of this recall 🔎 |
| Date | Component | Vehicle Affected |
|---|---|---|
| Mar. 22, 1984 | Steering:wheel And Handle Bar | 4,393 |
| Apr. 14, 1983 | Steering:gear Box:shaft Pitman | 1,515 |
| Jul. 12, 1979 | Suspension:rear:springs:leaf Spring Assembly | 1,706 |
| Jul. 9, 1979 | Steering:wheel And Handle Bar | 4,640 |
| Jun. 1, 1979 | Steering:linkages | 6,673 |
| May. 31, 1979 | Engine And Engine Cooling:engine | 23,000 |
| Oct. 3, 1978 | Service Brakes, Air:antilock:interconnecting Assembly(wiring) | 19,370 |
| Aug. 8, 1978 | Engine And Engine Cooling:engine | 850 |
| Apr. 4, 1978 | Service Brakes, Air:antilock:control Unit/module | 9,700 |
| Feb. 9, 1978 | Service Brakes, Air:supply:hoses, Lines/piping, And Fittings | 400 |
| Nov. 21, 1977 | Suspension:rear:springs:leaf Spring Assembly:hanger/bracket | 7,400 |
| Oct. 12, 1977 | Engine And Engine Cooling:cooling System:fan | 48,000 |
| Sep. 19, 1977 | Wheels:multi Piece | 250 |
| Jan. 1, 1977 | Service Brakes, Air:drum | 830 |
| Jan. 1, 1977 | Steering:gear Box (other Than Rack And Pinion) | 2,200 |
| Jun. 9, 1976 | Service Brakes, Air:drum:chamber | 404 |
| Apr. 20, 1976 | Steering:wheel And Handle Bar | 608 |
| Jan. 13, 1976 | Visibility:windshield Wiper/washer:motor | 790 |
| Jan. 13, 1976 | Service Brakes, Air:antilock:wheel Speed Sensor | 350 |
| Jul. 24, 1975 | Service Brakes, Air:supply:hoses, Lines/piping, And Fittings | 110 |
| Jul. 24, 1975 | Steering:wheel And Handle Bar | 402 |
| Jul. 24, 1975 | Service Brakes, Air:supply:check Valve | 935 |
| Apr. 15, 1975 | Service Brakes, Air:drum:drum | 600 |
| Model | # Recalls |
|---|---|
| 1984 Mack WS | 1 |
| 1983 Mack WS | 1 |
| 1981 Mack WS | 1 |
| 1980 Mack WS | 1 |
| 1979 Mack WS | 4 |
| 1978 Mack WS | 5 |
| 1977 Mack WS | 8 |
| 1976 Mack WS | 8 |
| 1975 Mack WS | 13 |
| 1974 Mack WS | 7 |
| 1973 Mack WS | 1 |
| 1972 Mack WS | 1 |