Keep the front suspension located and steering tight with the Delphi Suspension Control Arm and Ball Joint Assembly TC5543 — a direct-fit Mazda 3 control arm for the 2010-2013 Mazda 3 and 2010-2013 Mazda 3 Sport. This is the front left lower unit, which positions the wheel, controls its motion, and carries the integrated ball joint that lets the knuckle pivot for steering.
Delphi applies its OE steering expertise to this aftermarket assembly, with extensive dimensional and material analysis for close OE-to-aftermarket compatibility:
- Tested to extremes: validated below -40°C and over 120°C and exposed to 720 hours of salt spray.
- 100% inspection: every arm undergoes crack detection and ultrasonic flaw detection so materials match OE specifications.
- Precision joint: ball studs machined to micron tolerances for durable, smooth joint operation, with robot welding for consistent build quality.
- Anti-corrosion protection: applied to each part for corrosion prevention and improved appearance.
Signs the original may need replacing include clunking or knocking over bumps, loose or wandering steering, and uneven tire wear — diagnose the cause before replacing. If a worn arm or ball joint is the source, this Delphi control arm replaces it. See the "Vehicles it fits" section for the full engine-level fitment.
Interchange: 102-7614 · 52-1997 · BBM2-34-350 · BBM2-34-350A
1027614 · 521997 · BBM234350 · BBM234350A · BJ651015 · BJ651015PR · CAS651009 · CAS651009PR · CB65093 · CB65093PR · RK621271 · CMS76151 · GS76151 · JTC7816
This part cross-references / interchanges with the following part numbers:
102-7614, 52-1997, KSC5504, BJ651015, BJ651015PR, CAS651009, CAS651009PR, CB65093, CB65093PR, RK621271, BBM2-34-350, BBM2-34-350A, CMS76151, GS76151, JTC7816
Frequently Asked Questions
Does this Delphi TC5543 fit my 2010 Mazda 3?
Yes. It is a direct-fit front left lower control arm for the 2010-2013 Mazda 3 and 2010-2013 Mazda 3 Sport. Check the "Vehicles it fits" section to confirm your exact vehicle.
Which corner does this control arm cover?
It is the front left (driver's side) lower unit. For a 2012 Mazda 3 control arm on the opposite side, you would need the matching right-hand part.
Is the ball joint included?
Yes. The ball joint is integrated into the assembly, with the ball stud machined to micron tolerances for smooth, durable joint operation.
What are signs this part may need replacing?
Clunking or knocking over bumps, loose or wandering steering, and uneven tire wear can point to a worn control arm or ball joint. Diagnose the cause before replacing.
How is this Delphi part protected against rust?
Anti-corrosion protection is applied to each part, and Delphi validates its arms through 720 hours of salt spray testing plus 100% crack and ultrasonic flaw detection.
