Standard Motor ABS Speed Sensors

Standard Motor ABS speed sensors supply information regarding wheel movement to the ABS computer. They're often located at each wheel hub/rotor on 4-wheel disc systems. Alternatively, on rear drum applications, you'll usually find them mounted on the differential housing. Under braking, if wheel speeds are unequal, indicating wheel lockup, the computer modulates the anti-lock feature until the speeds are equal again. Replacement ABS speed sensors are available for hundreds of makes/models. Just match up your vehicle specs to order the correct unit.