Mevotech Supreme Suspension Control Arm and Ball Joint Assembly P/N:CMS30121
Keep your front suspension tight and your steering precise with the Mevotech Supreme control arm and ball joint assembly (CMS501090). This front left lower unit installs as a direct-fit replacement for the 1997-1999 Cadillac DeVille, 1997-2002 Cadillac Eldorado, and 1997 Cadillac Seville. The control arm locates the wheel and positions the front suspension, while the integrated ball joint provides the pivot the steering knuckle needs to turn and travel.
If a worn front left lower control arm, its bushings, or its ball joint is the cause of clunking over bumps, loose steering, or uneven tire wear, this Mevotech Supreme suspension control arm replaces it. Have the cause diagnosed first, since those symptoms can have other sources.
Interchange: 521-973
521973 · 19296447 · 25653448 · CB91303 · CB91303PR · CA12590 · 25653446 · 25672985 · 2607493 · 30034550
This part cross-references / interchanges with the following part numbers:
Will this fit my Cadillac Deville?
Yes. This Cadillac Deville control arm fits the 1997-1999 DeVille (front left lower). Check the Buyer's Guide tab to confirm your exact year and engine.
Does it fit the Cadillac Eldorado?
Yes. This Cadillac Eldorado control arm is a front left lower assembly for the 1997-2002 Eldorado, and it also fits the 1997 Cadillac Seville.
What position is this control arm?
It is the front left (driver's side) lower control arm and ball joint assembly for the listed applications.
What hardware is included?
It includes the part-specific castle nut and cotter pin needed to secure the ball joint to the vehicle during installation.
How do I know if my control arm or ball joint needs replacing?
Signs may include clunking or knocking over bumps, loose or wandering steering, and uneven front tire wear. Have the cause diagnosed, since these can have other sources.
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.