Fitting Position: Front Axle Left; or; Fitting Position: Front Axle Right. QUICK BRAKE WS 0242 A, WS 0242 B. Engine Code: M 273.968; Engine Code: M 273.961; Fitting Position: Front Axle; or; Engine Code: M 273.968; Fitting Position: Front Axle; Special Purpose Vehicle: not for armoured vehicles.