Keep the wheel located and the steering precise with the Delphi control arm and ball joint assembly TC977 — a rear upper forward unit that pairs the control arm with its integrated ball joint in one direct-fit replacement. It drops in for the listed BMW applications, including the 1995 and 1997-2001 740I, 1995-2001 740IL, 1995-2001 750IL, 1997-2000 528I, 1997-2002 540I, 2001-2002 530I and 2001-2003 525I. If a worn arm or a loose ball joint is behind clunking, steering wander or uneven tire wear, this assembly replaces both together.
- OE-grade validation: Delphi applies its OE expertise to the aftermarket, testing to the extreme — parts withstand temperatures below -40 degrees C and over 120 degrees C and endure 720 hours of salt spray, with extensive dimensional and material analysis for OE-to-aftermarket compatibility.
- 100% inspected: every control arm undergoes full crack detection and ultrasonic flaw detection so materials match OE specifications.
- Precision ball studs: the ball studs are machined to micron tolerances for durability and smooth joint operation.
- Built and protected: robot welding delivers consistent quality, and anti-corrosion protection is applied to each part for corrosion prevention and enhanced aesthetics.
See the Buyer's Guide tab for the full engine-level fitment.
Interchange: 3332 1090 745 · 3332 1097 264 · 33 32 6 768 791 · 101-5879 · 102-5879 · BW-H101 · 520-975 · 502-1025
33321090745 · 33321097264 · 33326768791 · 1015879 · 1025879 · BWH101 · 520975 · 5021025 · CB14536 · CB14616 · CB14616PR · CK620623 · K620623 · RK620623 · FA4494 · CMS10150 · GS10150 · MS10150 · JTC963
This part cross-references / interchanges with the following part numbers:
3332 1090 745, 3332 1097 264, 33 32 6 768 791, 101-5879, 102-5879, BW-H101, 520-975, KSC6237, CB14536, CB14616, CB14616PR, CK620623, K620623, RK620623, FA4494, CMS10150, GS10150, MS10150, 502-1025, JTC963
