Transmission/O2 Sensor Wiring Harness - E46 325i/330i (01-02, MS43)

This part is listed by BMW as BMW part number 12517506793 (12 51 7 506 793) and is described as the wiring harness for automatic transmission and the oxygen sensors on 2001-2002 E46 325i, 330i models. This is only for cars with a automatic transmission. Perfect for replacing a damaged coil harness or converting.

This harness can be used when converting from later MS45 to earlier MS43 engine management, such as for Spec E46 racing. On a manual transmission you will need to modify or remove some of the connectors to make it work for the manual transmission.

This is a Genuine BMW O2 sensor harness with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.

BMW Fitments:

3 Series
E46 (99-05) > 325Ci
E46 (99-05) > 325i
E46 (99-05) > 325xi
E46 (99-05) > 330Ci
E46 (99-05) > 330i
E46 (99-05) > 330xi