Genuine BMW Oil Pump, BMW M50 M52 S50 S52 9407 which in turn ensures:

which in turn ensures:

Please note that if you are not using port injection

5 mm bore size results in a displacement 3996 cc94 mm bore size results in a displacement 4039 cc94

Capable of producing up to 500 horsepower Naturally Aspirated or 1500+HP Turbo

Genuine BMW Oil Pump, BMW M50 M52 S50 S52 9407 which in turn ensures:BMW Part Number 11411740154. Oil Pump Assembly This is an original Genuine BMW oil pump assembly for the M50, M52, S50, and S52 engines, as used in the E36 and Z3. Applications: 1992 1999 E36 323ic 1992 1999 E36 323is 1992 1999 E36 325i 1992 1999 E36 325ic 1992 1999 E36 325is 1992 1999 E36 328i 1992 1999 E36 328ic 1992 1999 E36 328is 1992 1999 E36 M3 1996 2002 Z3 M (S52)