Front Left Lower Control Arm with Ball Joint for 2003-2008 BMW Z4 & More - Dorman 520-919

Replace a worn front left lower arm in one step with the Dorman control arm 520-919. It arrives with its ball joint and bushings already installed and is designed to help keep your front suspension steady and predictable. It fits many vehicles, among them the 2003-2008 BMW Z4, 2001-2006 BMW 325Ci and 2001-2006 BMW 330Ci. See the Buyer's Guide tab for the full list and engine details.

This Dorman suspension control arm and ball joint assembly is built as a direct replacement for the original equipment on specific applications. It went through an industry-leading evaluation process meant to deliver a smooth ride, directional stability and predictable dynamics.

• Direct replacement: Takes the place of the original assembly on the listed applications.
• Complete repair: The ball joint and bushings come pre-installed, which saves time and labor.
• Quality engineering: Underwent industry-leading testing aimed at a smooth, stable and safe ride.
• Corrosion protection: Additional coatings help resist rust and corrosion.

This arm is cataloged for the front left lower position. It links the front suspension to the steering knuckle through its ball joint and lets the wheel travel with the road while holding it in place. Clunking over bumps, loose or wandering steering and uneven tire wear are signs this part may need replacing. If a worn arm or ball joint is the cause, this assembly replaces both at once. Replacing the left and right sides together is recommended for balanced handling.