Unique & Niche: ABS Rings (Sensor/Reluctor)

Did you know that FPS stocks a range of ABS (sensor/reluctor) rings?


ABS rings are fitted to either the driveshaft or the wheel hub of a car and work together with sensors to provide wheel speed information to the ECU.

There are two types of ABS sensors: passive and active.

A passive sensor requires an ABS ring that inducts a magnetic field, thus producing a voltage that the ECM (engine control module) monitors. They look like a castellated metal ring.

An active sensor requires a magnetic ABS ring. This type is usually found in a hub bearing and looks like an oil seal.


ABS rings are found on all the four wheels of an ABS equipped vehicle.

Failure and replacement:

ABS rings are susceptible to corrosion and damage and they can often be missing from new CV joints. The rings are easily damaged when removed; therefore the best practice would be to fit a new ring.

A warning light will come up on the dashboard if the ring is faulty and will result in an MOT failure. A damaged ABS ring can only be identified by visual inspection.

 Product highlights:
ADM57101 – Ford Maverick (2001-2004)
V10-1494 – Audi (1995-2001)

ABS rings can be found on MAM Autocat+ and the F:Drive under Hydraulics>Brake Hydraulics. All parts are available through FPS on same/next-day delivery.



If you have an account with FPS and would like more information on this article please get in touch with your local warehouse or Territory Manager, alternatively use our enquiry form.