Blue Print Rear ABS Wheel Speed Sensor Reluctor Ring Genuine OE Quality. An ABS sensor is fitted to each wheel of a vehicle equipped with an ABS system. The sensor itself is linked to an ABS Ring, which is fitted to the brake rotor. Both of which work to help prevent the car from skidding under heavy braking. In many cases traction control and electronic stability control are linked with your ABS Sensors. Original Blue Print spare part. Please use the vehicle identification at the top of the page to confirm compatibility with your vehicle. All restrictions must be observed! Weight: 0,070 kg OE numbers (for comparison purposes only): Ford PKW D351-26-471; Mazda D523-26-471 among others suitable for: Ford: Fiesta 02, Fiesta 08, Fusion 02; Mazda: Mazda2 I (DY).