Flywheel Position/Speed Sensor, Bosch - E30 325e/M3, E28 M5, E24, M20, M30, S38

This part is listed by BMW as BMW part number 12141730773 (12-14-1-730-773)and is described as OEM Bosch "Pulse Generator" for the Flywheel in E30 325e, 325es (1984, 1985, 1986), E30 M3 (1987, 1988, 1989, 1990, 1991), E28 528e,535i, M5 (1982, 1983, 1984, 1985, 1986, 1987, 1988), and E24 633CSi, 635CSi,M6 (1982, 1983, 1984, 1985, 1986, 197, 1988, 1989).

There are two of these sensors mounted on the bellhousing of the transmission. The sensors are the same but perform different functions. They send position data back to the Motronic ECU - one sensor provides engine RPM, the other provides a TDC timing reference. A failure of one sensor will affect your engine operation and/or engine starting. It's not a bad idea to keep 1 or even 2 of these sensors are spares.

Supersedes the following BMW part numbers:
12141710668 (12-14-1-710-668)
12141708618 (12-14-1-708-618)
12141708619 (12-14-1-708-619)

This is an OEM E30 CPS manufactured by Bosch - the original supplier to BMW for this part, as well as many other engine components. As the OEM it meets all of BMW's original design, fitment, and performance requirements and is TUV approved. OEM parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. This part has a two year warranty.