Keep the front wheel firmly located and steering response precise with the DELPHI control arm and ball joint assembly (MPN TC4021), the front-left suspension unit that positions the wheel, absorbs road inputs, and carries the integrated ball joint that lets the knuckle pivot as you steer and travel over bumps. It fits many vehicles in the front-left position, among them the 2010-2012 Ford Taurus, 2010-2012 Ford Flex and 2009-2012 Lincoln MKS; see the Buyer's Guide tab for the full list.
- Tested to the extreme: Delphi applies its OE steering expertise to the aftermarket, testing to withstand temperatures below -40°C and above 120°C plus 720 hours of salt spray, with dimensional and material analysis for OE-to-aftermarket compatibility.
- 100% inspected: every arm undergoes crack detection and ultrasonic flaw detection so materials match OE specifications.
- Precision ball studs: studs are machined to micron tolerances for durability and smooth joint operation.
- Welding and finish: robot welding for consistent quality, with anti-corrosion protection applied for corrosion prevention and enhanced appearance.
Signs this control arm may need replacing include clunking on acceleration or over bumps, loose or wandering steering, and uneven tire wear. This is the front-left assembly, sold individually; replacing both sides together is recommended, and consult the vehicle service information for the correct fasteners and whether they may be reused.
Interchange: 52-1883 · 9A5Z 3079-A · 9G1Z 3C403-A · BA5Z 3079-A
MCF2260 · RK621133 · CMS401112 · CMS401122 · X15CJ7806 · 521883 · 9A5Z3079A · 9G1Z3C403A · BA5Z3079A
This part cross-references / interchanges with the following part numbers:
52-1883, 9A5Z 3079-A, 9G1Z 3C403-A, BA5Z 3079-A, MCF2260, RK621133, CMS401112, CMS401122, X15CJ7806
