Tighten up steering feel and restore correct front-end geometry with the Delphi control arm and ball joint assembly (P/N TC2314), the front left lower unit for the 1992-1999 BMW 318I and 318IS, 1995-1999 BMW 318TI, 1992-1995 BMW 320I, 1998-1999 BMW 323I and 323IS, 1992-1995 BMW 325I and 325IS, 1996-1999 BMW 328I and 328IS, and 1998-2002 BMW Z3. It locates the front wheel and, with its integrated ball joint, allows the suspension to travel and steer while holding alignment. Delphi carries its OE engineering into the aftermarket, using extensive dimensional and material analysis for close OE-to-aftermarket compatibility.
- Tested to extremes: validated below -40°C and above 120°C, plus 720 hours of salt spray.
- Verified materials: 100% crack detection and ultrasonic flaw detection confirm materials match OE specifications.
- Precision ball studs: machined to micron tolerances for smooth joint operation.
- Built to last: robot-welded for consistent quality, with anti-corrosion protection applied to each part.
Worn control arms or ball joints can show up as clunking, wandering steering, or uneven tire wear; if a failed front left lower arm is the cause, this replaces it. Have the front end diagnosed first, and consider replacing the opposite side as a matched pair for balanced handling.
Interchange: 3112 1140 957 · 3112 6758 513 · 3112 6758 515 · 101-5394 · 102-5394 · 622.34009 · 520-739
31121140957 · 31126758513 · 31126758515 · 1015394 · 1025394 · 62234009 · 520739 · 31122339997 · CB14023 · CB14023PR · CK80531 · K80531 · RK80531 · FA2114 · CMK80531 · CMK9625 · MK80531 · JTC144
This part cross-references / interchanges with the following part numbers:
3112 1140 957, 31122339997, 3112 6758 513, 3112 6758 515, 101-5394, 102-5394, 622.34009, 520-739, KSC4489, CB14023, CB14023PR, CK80531, K80531, RK80531, FA2114, CMK80531, CMK9625, MK80531, JTC144
