BMW e39 z3 e46 e53 CAMshaft position RPM Sensor OEM Brand NEW with 1yr WARRANTY Position/RPM Sensor at Intake camshaft. BMW part# 12 14 7 539 165, check fit below. NOTE: Does not include the o-ring. (1) 12 14 1 748 398 o-ring. Recently made GENUINE BMW part, not been lying around. 528 owners NOTE the mid-year split on PRODUCTION date.