Restore tight, precise handling with the Mevotech TTX control arm, part number CTXMS501055 — a front left lower control arm and ball joint assembly engineered for high-usage commercial and passenger vans, SUVs, fleets and working trucks. It drops in as a direct-fit replacement for 2003-2025 Chevrolet Express 2500 and 3500, 2009-2025 Chevrolet Express 4500, 2003-2025 GMC Savana 2500 and 3500, and 2009-2024 GMC Savana 4500 (see the "Vehicles it fits" section for engine-level details).
- Superior toughness: patented sintered bearings deliver longer-lasting performance.
- Built-in protection: a corrosion-sealing boot is integrated into the ball joint, and a 180-degree SAE grease fitting is included for simple servicing.
- Secure fit: added knurling locks the control arm bushing to the sub-frame, while an application-specific ball stud system with a larger sphere optimizes performance.
- Easy installation: includes a part-specific slotted castle nut and snap cotter pin, and a thicker, stronger flange helps prevent deformation during install.
Cast steel construction is engineered to meet or exceed OE specifications. If a worn control arm bushing or ball joint is the cause of clunking over bumps, wandering steering, or uneven front tire wear, this assembly replaces both in a single unit.
Interchange: 820-96742B · 521-921
82096742B · 521921 · 19476371 · 15750832 · 20869232 · CA16512 · 20819411 · 25793531 · RK622918 · X07CJ1375
This part cross-references / interchanges with the following part numbers:
19476371, 820-96742B, 15750832, 20869232, 521-921, CA16512, 20819411, 25793531, RK622918, CTXMS501055, X07CJ1375
Frequently Asked Questions
Does this Mevotech TTX lower control arm fit my van?
It is a front left lower unit for 2003-2025 Chevrolet Express 2500/3500, 2009-2025 Express 4500, 2003-2025 GMC Savana 2500/3500, and 2009-2024 Savana 4500. Check the "Vehicles it fits" section for engine-level details.
Is the mounting hardware included?
Yes. It comes with a part-specific slotted castle nut and an easy snap cotter pin to secure the ball joint to the vehicle.
Can this ball joint be greased?
Yes. A 180-degree SAE grease fitting is included so the ball joint can be serviced. The ball joint also has a built-in boot to help seal out corrosion.
What are the signs this control arm may need replacing?
Clunking over bumps, wandering or loose steering, and uneven front tire wear can indicate a worn control arm bushing or ball joint. Diagnose the cause before replacing.
What does a Mevotech TTX control arm review of the design highlight?
Key features include patented sintered bearings, cast steel construction built to meet or exceed OE specs, sub-frame knurling on the bushing, and a larger-sphere application-specific ball stud.
