BMW part number 63128356127 (which supersedes 63121468208) is a white rubber headlight bushing (also listed as a White Joint Bushing or Articulated Bushing) that fits 1988–1995 US-market BMW E32 7 Series and E34 5 Series models. While the black rubber bushings (63121378369) receive the threaded aiming screws, these white nylon/rubber bushings snap into the headlight housing tabs to serve as the ball-joint sockets for the adjuster screws and fixed pivot rods.
- E32 7 Series (1988–1994).
- 735i / 735iL. 1988–1992.
- 740i / 740iL. 1993–1994.
- 750iL. 1988–1994.
- E34 5 Series (1989–1995).
- 525i / 525iT Touring. 1989–1995 (both M20 and M50 engines).
- 535i. 1989–1993.
(Note: Unlike the black bushings (63121378369), this white ball-socket bushing is primarily cataloged for early-to-mid production E34 6-cylinder models—525i, 535i, and M5—whereas later V8 530i/540i models often use a revised integrated ball-socket housing design.)
What It Does & Quantity Needed
- Ball-and-Socket Receiver. Presses into the mounting ears on the back of the glass headlight lens/reflector housing so the ball ends of the aiming screws (
63121378368) and intermediate distance pieces (63121378339 / 63121394252) can snap in and articulate without binding.
- Quantity Per Car. BMW diagrams specify 6 white bushings per side (3 per lamp bucket, or 12 total per vehicle).
