Help keep your BMW's front suspension located and tracking true with the Delphi control arm and ball joint assembly (TC286), a direct-fit replacement for the front left lower rearward position. It fits many vehicles, among them the 1989-1990 BMW 525i, 1991-1993 BMW M5 and 1988-1999 BMW 750iL. The arm links the chassis to the steering knuckle, and its integrated ball joint lets the wheel pivot and travel while helping locate the wheel through its range of motion.
- OE-derived engineering: tested below -40°C and above 120°C and exposed to 720 hours of salt spray, with extensive dimensional and material analysis for close compatibility between the OE and aftermarket part.
- 100% inspected: every arm undergoes crack detection and ultrasonic flaw detection so materials match OE specifications.
- Precision ball studs: machined to micron tolerances for durability and smooth joint operation.
- Robot-welded & protected: robot welding delivers consistent quality, and anti-corrosion protection is applied to each part for corrosion prevention and enhanced appearance.
See the Buyer's Guide tab for the full list of vehicles that use this front left lower rearward arm. Worn control arms or ball joints may show up as clunking, steering wander, or uneven tire wear; if the original front left lower rearward arm is the cause, this replaces it.
Interchange: 3112 1124 401 · 3112 1131 587 · 3112 1139 991 · 101-4127 · 102-4127 · 520-733
31121124401 · 31121131587 · 31121139991 · 1014127 · 1024127 · 520733 · 31121127401 · KSC4511 · CB9127 · CB9127PR · CK9127 · K9127 · RK9127 · FA1525 · CMK9127 · GK9127 · MK9127 · JTC258
This part cross-references / interchanges with the following part numbers:
3112 1124 401, 31121127401, 3112 1131 587, 3112 1139 991, 101-4127, 102-4127, 520-733, KSC4511, CB9127, CB9127PR, CK9127, K9127, RK9127, FA1525, CMK9127, GK9127, MK9127, JTC258
