Keep the front suspension tight and steering precise with the Delphi ball joint TC5963, a front lower suspension ball joint built with Delphi's OE safety technology. It drops in as a direct-fit replacement for the 2003-2007 Cadillac CTS, pivoting the steering knuckle while carrying the loads passed between the control arm and knuckle. If a worn front lower joint is behind your clunking, wandering steering, or uneven tire wear, this replaces it.
Delphi's extensive dimensional and material analysis targets close compatibility between the OE and aftermarket part. Inspect both sides and replace as needed for balanced steering.
Interchange: 521-019 · 521-020
521019 · 521020 · BJ90425 · BJ90425PR · BJ90425XL · CB90444 · CB90444PR · 25758280 · 25758281 · 25758282 · 25758283 · CB90443 · CB90443PR · K80635 · GK80635 · MK80635 · JBJ305
This part cross-references / interchanges with the following part numbers:
Does this Cadillac CTS ball joint fit my vehicle?
It's a direct-fit front lower suspension ball joint for the 2003-2007 Cadillac CTS. Check the Buyer's Guide tab to confirm the application for your specific vehicle.
What position is this Delphi ball joint?
It is the front lower ball joint, connecting the lower control arm to the steering knuckle so the knuckle can pivot for steering and travel with suspension movement.
What are the signs this ball joint may need replacing?
Common signs include clunking over the front suspension, wandering or loose steering, and uneven tire wear. Have the cause diagnosed, as these symptoms can have other sources.
Should I replace both ball joints at the same time?
Inspecting and replacing the joint on both sides together is a common best practice for balanced, even steering feel, though each side is sold and evaluated individually.
What kind of boot does this ball joint use?
It uses a chloroprene rubber boot, which improves durability and helps prevent premature failure by sealing grease in and keeping dirt and moisture out.
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.
