At its core

WABCO : 4757100080

a strong magnetic base and a cigarette lighter plug with switch

4640040000

EBS 90.36.1001 EXCITER RING - ROR ( 21213316 ) Battery Tools And Boosters At its coreThe Exciter Ring is attached to a part of the vehicle that is rotating at the same speed as the road wheel, such as the wheel hub, brake disc, CV joint or the drive shaft & has evenly spaced teeth integrally cast on or into the surface & is a crucial part of the ABS system. ABS sensors are installed directly next to this & the rotational movement of the ring is measured by the sensor signaling to the ABS system changes to traction & preventing the