Cam Sensor O-Ring, URO - Most BMW Engines (M50, M54, S52, N55, S55, S65, & More)

This part is listed by BMW as BMW part number 12141748398 (12 14 1 748 398) and is described as the green o-ring seal for the camshaft position sensors (intake or exhaust) used in almost all BMW engines. This includes M50, M52, M52TU, M54, N20, N26, N52, N54, N55, N62, N63, S50, S52, S55, S65, S63, and more. It's 17x3mm (17mm ID) in size and has a distinctive green color. This o-ring seals the sensor to the cylinder head or Vanos unit but is often the source of oil leaks. A new o-ring is recommended any time the sensor is loosened or removed.

Quantity Per Vehicle - 4
Fits the following BMW Models:
BMW 650i 06-10 12-15, 135is 13, 650i xDrive Gran Coupe 13-15, 335i GT xDrive 14-15, 428i xDrive Gran Coupe 15, 328i GT xDrive 14-15, 525i 92-95 01-07, 323is 98-99, 428i 14-15, 335i 07-15, 323i 98-00, Alpina B7L xDrive 11-15, 435i xDrive 14-15, 645Ci 04-05, Alpina B7 xDrive 11-15, 530i 01-07, 840Ci 96-97, 760i 04-06, Z4 03-15, 328Ci 00, Z3 96-02, 528i xDrive 09-10 12-15, 535i xDrive 09-15, Z8 00-03, 550i xDrive 11-15, 535i 08-15, 325xi 01-06, 525iT 93, ActiveHybrid 7 13-15, ActiveHybrid 5 12-15, Alpina B6 xDrive Gran Coupe 15, ActiveHybrid 3 13-15, 740iL 96-01, 1 Series M 11, 435i xDrive Gran Coupe 15, 540i 97-03, 750Li 06-15, 650i xDrive 12-15, 318i 96-98, 128i 08-13, 323Ci 00, M6 Gran Coupe 14-15, 435i Gran Coupe 15, 525xi 06-07, 318is 96-97, Alpina B7L 11-15, 750Li xDrive 10-15, 330Ci 01-06, 535i GT xDrive 11-15, 325is 92-93, 328i xDrive 09-15, 850Ci 95-97, 750i xDrive 10-15, 545i 04-05, 535xi 08, M5 00-03 06-10 13-15, M6 06-10 12-15, M3 95-99 01-06 08-13 15, 328xi 07-08, M4 15, 550i 06-15, 320i 13-15, 740i 97-01 11-15, M235i 14-15, 328i 96-00 07-15, 640i Gran Coupe 13-15, 650i Gran Coupe 13-15, 335xi 07-08, 318ti 96-99, 528xi 08, 228i xDrive 15, 320i xDrive 13-15, 135i 08-13, 740Li 11-15, 640i 12-15, 228i 14-15, 325i 92-95 01-06, 745i 02-05, 550i GT 10-15, 530xi 06-07, 740Li xDrive 13-15, 328is 96-99, 428i Gran Coupe 15, 330i 01-06, 750i 06-15, 535i GT 10-15, 550i GT xDrive 10-15, X4 15, 330xi 01-06, X5 00-15, 528i 97-00 08-15, X3 04-15, 335is 11-13, 325Ci 01-06, X1 13-15, 435i 14-15, 428i xDrive 14-15, X6 08-15, Alpina B7 07-08 11-15, 335i xDrive 09-15, M235i xDrive 15, 745Li 02-05, 750iL 95-01, 760Li 03-08 10-15, 640i xDrive Gran Coupe 14-15, 640i xDrive 14-15

This o-ring is manufactured by an aftermarket supplier of European auto parts, including many engine components. While not carrying OEM status, this part follows the design of the original very closely and uses similar materials. An aftermarket part may even have the same TUV approval as its OEM counterpart. The brand may even be OEM to another manufacturer besides BMW. This aftermarket brand has a two year warranty - the same as Genuine BMW and OEM brands.