Keep the front suspension tight and precise with the Mevotech Supreme control arm and ball joint assembly, part number CMS101078. This is the front right upper control arm and ball joint assembly, engineered in-house with application-specific upgrades, and it drops in as a direct-fit replacement for the 2003-2006 Mercedes-Benz S430 and 2003-2006 Mercedes-Benz S500 (see the Buyer's Guide tab for engine-level details).
The control arm locates the wheel and the integrated ball joint lets the knuckle pivot and steer. When the joint wears, you may notice clunking over bumps, wandering steering, or uneven tire wear — signs this assembly may need replacing. If a worn upper arm or ball joint is the cause, this replaces both in one unit.
- Labor Saver design: ships with all essential mounting hardware included to simplify installation.
- Resists corrosion: a protective surface treatment helps limit rust build-up for added longevity.
- Precise engineering: innovated inside and out for durability and easier installation.
- Premium materials & rigorous testing: built with premium components and validated by extensive in-house and third-party durability testing.
Mevotech Supreme parts are built for high-usage commercial and passenger vehicles, SUVs, fleets and working trucks.
Interchange: 102-6941 · 521-302
1026941 · 521302 · 19296284 · TC6710 · CB28108 · CB28108PR · CA8187 · 3CB10227 · CAK621115 · RK621115 · 2203307007 · A2203307007 · GS101078 · 2606328 · 30036107 · 5021317 · X31CJ0158
This part cross-references / interchanges with the following part numbers:
19296284, 102-6941, TC6710, 521-302, CB28108, CB28108PR, CA8187, 3CB10227, CAK621115, RK621115, 2203307007, A2203307007, GS101078, CMS101078, 2606328, 30036107, 5021317, X31CJ0158
