BMW M3 M50 M52 S50 S52 IMPROVED SPORT OIL PUMP 1730070
Used oil pump with brand new shaft, custom-made from hardened (heat-treated) gear steel.
Improved design for high-rpm sport applications.
1730070 (M50 / S50US)
1740154 (M52)
1740965 (M52)
M52 oil pumps have slightly wider rotors and better oil flow performance than older M50/S50 oil pumps.
M52 oil pumps can be installed in M50/S50US engines after enlarging the bore in one of the mounting arms (requires some basic drilling).
It is recommended to replace the oil pressure valve and spring, as these are inexpensive and easy to obtain from BMW dealers.
What you see in the pictures is what you received.
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Worldwide shipping