Fits 66mm housing as fitted to E46 after approx. Feb 2001 and all Z4. For E46 before approx Feb 2001, you will require the 60mm version, PFF5-4601-60. If your car was built around Feb 2001, please measure prior to ordering.
OEM Part Number: 31126757623 / 31126777850 / 31126783376
OEM Part Number: 31126757622 / 31126777849 / 31126783375
Position 1 in the Diagram