This page features one pair holder clip rings for the D1S/D3S HID xenon bulbs.
You will need to use this HID bulb retainer holders to install the D1S/D3S HID bulbs for the cars listed above in the part compatibility list and many other makes and models.
If your car is not listed above, you can verify the fitment by removing your stock D1S or D3S HID bulb and compare the retainer with the pictures shown below.
For D1S D1R D3S D3R HID xenon bulbs
OEM part # 63117162087 / 63 11 7 162 087
To mount the HID bulb for the OEM headlamps for either replacement or retrofit headlight use