Keep your front suspension pivoting smoothly with the Delphi ball joint TC5238, a front lower joint that connects the lower control arm to the steering knuckle and lets the suspension articulate while you steer. It drops in as a direct-fit replacement for the 2005-2010 Ford Mustang — see the "Vehicles it fits" section for the full engine-level fitment.
Delphi applies its OE steering expertise to this aftermarket joint, testing to the extreme: parts endure temperatures below -40°C and above 120°C plus 720 hours of salt spray, with extensive dimensional and material analysis for close OE-to-aftermarket compatibility.
- Forged construction: built with high-quality forgings for increased strength and smooth operation.
- Chloroprene rubber boot: improves durability and helps prevent premature failure by keeping contaminants out.
- Micron-tolerance machining: machined to micron tolerances for durability and smooth joint operation.
- Anti-corrosion protection: applied to each part for corrosion prevention and enhanced appearance.
Signs this front lower ball joint may need replacing include clunking or popping over bumps, wandering steering, and uneven front tire wear. Sold individually; ball joints install per side, so consider replacing both sides together for balanced steering. If a worn ball joint is the cause of your symptoms, this replaces it.
Interchange: 610.61017 · 520-390 · 4R3Z-3078-A · 4R3Z-3078-B · 6R3Z 3078-A · 6R3Z 3078-AA · 7R3Z 3078-A
61061017 · 520390 · 4R3Z3078A · 4R3Z3078B · 6R3Z3078A · 6R3Z3078AA · 7R3Z3078A · MCF20 · MCF2364 · BJ86005 · CK80726 · K500033 · RK80726 · GS40514 · MS40514 · JBJ904
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
610.61017, 520-390, 4R3Z-3078-A, 4R3Z-3078-B, 6R3Z 3078-A, 6R3Z 3078-AA, 7R3Z 3078-A, MCF20, MCF2364, BJ86005, CK80726, K500033, RK80726, GS40514, MS40514, JBJ904
Frequently Asked Questions
Does this Delphi ball joint fit my Mustang?
It is a direct-fit replacement for the 2005-2010 Ford Mustang. Check the "Vehicles it fits" section to confirm the engine-level fitment for your vehicle.
Is this a front or rear ball joint?
It is a front lower ball joint, connecting the lower control arm to the steering knuckle.
Do I need to replace both ball joints at once?
It is sold individually. Ball joints install per side, so replacing both sides together is a good practice for balanced steering and even wear.
What are the signs of a worn ball joint on an 06 Mustang?
Common signs include clunking or popping over bumps, wandering steering, and uneven front tire wear. Diagnose the cause before replacing.
What kind of boot does this ball joint use?
It uses a chloroprene rubber boot that improves durability and helps prevent premature failure by keeping contaminants out of the joint.
