Delphi Suspension Ball Joint P/N:TC1621
Steer with confidence and keep your front suspension properly located with the Delphi ball joint TC1669, a front lower suspension ball joint that drops in as a direct-fit replacement for the 1994-2004 Ford Mustang. The ball joint connects the lower control arm to the steering knuckle and lets the suspension pivot and articulate while helping support and locate the front end.
Built on Delphi's OE expertise: Delphi applies its OE safety technology to its aftermarket steering portfolio, testing to the extreme for OE performance — parts withstand temperatures below -40°C and over 120°C and endure 720 hours of salt spray, with extensive dimensional and material analysis for close OE-to-aftermarket compatibility.
Worn ball joints can show up as clunking over bumps or during cornering, loose or wandering steering, and uneven front tire wear. If a failed front lower ball joint is the cause, this replaces it. Front lower joints wear on both sides, so inspect the opposite side and replace as a matched pair where needed.
Interchange: F4ZZ 3050-A
F4ZZ3050A · F4ZZ3050B · B8661 · BJ86335 · K8661 · K8749 · GK8749 · MK8749 · JBJ1174
This part cross-references / interchanges with the following part numbers:
Does this Delphi ball joint fit my Ford Mustang?
Yes — TC1669 is a direct-fit front lower suspension ball joint for the 1994-2004 Ford Mustang. Check the Buyer's Guide tab to confirm the fit for your exact year and engine.
What does this Mustang ball joint do?
It connects the lower control arm to the steering knuckle and lets the front suspension pivot and articulate, helping support and locate the front end for controlled steering.
What are the signs I need a new 04 Mustang ball joint?
Clunking over bumps or when cornering, loose or wandering steering, and uneven front tire wear can be signs a ball joint may need replacing. Diagnose the cause before replacing.
How much is Ford Mustang ball joint replacement cost?
This listing covers the part; total cost depends on labor and how many joints you replace. Since front lower joints wear on both sides, many owners replace them as a pair.
How is this Delphi ball joint protected against wear and corrosion?
It uses high-quality forgings and micron-tolerance machining for smooth operation, chloroprene rubber boots for durability, and anti-corrosion protection applied to each part.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.