Help keep front-end handling stable and predictable with the Dorman control arm 520-748, a front right lower forward arm that arrives with its ball joint and bushings already installed. It fits many vehicles, among them the 2001-2003 BMW 525i, 2001-2003 BMW 530i and 2000-2003 BMW Z8. See the "Vehicles it fits" section for the full list and engine details.
This Dorman suspension control arm and ball joint assembly directly replaces the original assembly on the listed applications. The arm links the wheel end to the chassis, and the ball joint provides the pivot that lets the wheel move with steering and suspension travel.
- Direct replacement: designed to take the place of the factory assembly on the listed applications.
- Pre-installed components: the ball joint and bushings come already installed, saving time and labor.
- Tested: put through an industry-leading evaluation process aimed at a smooth ride, directional stability and predictable dynamics.
- Corrosion protection: additional coatings help resist rust and corrosion.
Signs this arm may need replacing include clunking over bumps, loose or wandering steering and uneven tire wear. If a worn ball joint or bushing in the original arm is the cause, this assembly replaces them. This listing is the right-side unit, and replacing both sides together is recommended for balanced handling.
Interchange: 102-5669
1025669 · 31121092024 · 31121141718 · TC2400 · TC869 · CA4300 · 4CB10027 · RK90418 · FA4139 · GK90418 · CMK90418 · 2605265 · SK90418 · SK90419 · 1502008 · JTC924 · K90418
This part cross-references / interchanges with the following part numbers:
31121092024, 31121141718, 102-5669, TC2400, TC869, CA4300, 4CB10027, RK90418, FA4139, GK90418, CMK90418, 2605265, SK90418, SK90419, 1502008, JTC924, K90418
Frequently Asked Questions
What does this control arm do?
It links the wheel end to the vehicle's chassis. Its pre-installed ball joint provides the pivot for steering and suspension movement, and the bushings cushion the arm at its mounting points.
Which vehicles does it fit?
It fits many vehicles, including the 2001-2003 BMW 525i, 2001-2003 BMW 530i and 2000-2003 BMW Z8. See the "Vehicles it fits" section for the full list.
Is this a Dorman lower control arm?
Yes. Part number 520-748 is cataloged for the front right lower forward position, so it installs on the right side of the vehicle.
What comes installed on the arm?
The ball joint and bushings come pre-installed on the arm, which saves time and labor during installation.
What are signs it may need replacing?
Common signs include clunking over bumps, loose or wandering steering and uneven tire wear. Have the suspension inspected to confirm the cause before replacing the arm.
