BMW e12 e23 e28 e30 Seal for Fuel Level Sending Unit o-ring GENUINE e21 e24 Seal for Fuel Level Sending Unit Brand NEW part with full 1 year warranty. BMW part# 16 12 1 150 391, note the mid-year splits. Genuine BMW part, recently made: not been lying around. PLEASE NOTE the mid-year split on PRODUCTION date. See Models Chart BELOW. Not sure about your car? email us your VIN to confirm.