Replace a worn front lower arm in one step with the Dorman control arm P/N 520-553, a front left lower rearward suspension arm supplied with its ball joint and bushings already installed. It fits many vehicles, among them the 2012-2015 BMW X1, 2008-2013 BMW 125i and 2008-2013 BMW 128i. 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 specific vehicle applications. It went through an industry-leading evaluation process aimed at a smooth ride, directional stability and predictable dynamics.
- Trustworthy replacement: designed to take the place of the factory assembly on the listed applications.
- Complete repair: the ball joint and bushings come pre-installed, saving time and labor during installation.
- Quality engineering: put through industry-leading testing intended to deliver a smooth, stable and safe ride.
- Durably designed: additional coatings provide rust and corrosion resistance.
This Dorman lower control arm is cataloged for the front left lower rearward position and is sold individually. Replacing both sides together is recommended. Signs this arm may need replacing include clunking over bumps, loose or wandering steering, and uneven tire wear. Diagnose the cause first, because tie rods, struts and other suspension parts can produce similar symptoms.
Interchange: 102-6302
1026302 · 31122405859 · 31126763699 · 31126770849 · TC1476 · CA4501 · 2CB10047 · 3033801 · RK620129 · FA4558 · GS10108 · CMS10108 · 2605662 · SCA0198P · SRK620129 · 1502009 · X05CJ0863 · JTC1030 · V2071611
This part cross-references / interchanges with the following part numbers:
31122405859, 31126763699, 31126770849, 102-6302, TC1476, CA4501, 2CB10047, 3033801, RK620129, FA4558, GS10108, CMS10108, 2605662, SCA0198P, SRK620129, 1502009, X05CJ0863, JTC1030, V2071611
Frequently Asked Questions
Which vehicles does this part fit?
It fits many vehicles, including the 2012-2015 BMW X1, 2008-2013 BMW 125i and 2008-2013 BMW 128i. Check the "Vehicles it fits" section to confirm your exact vehicle.
Does it come with the ball joint and bushings installed?
Yes. Each assembly includes a pre-installed ball joint and bushings, which saves time and labor during the repair.
What position does this arm install in?
It is cataloged for the front left lower rearward position. It is sold individually, and replacing both sides together is recommended.
What are signs a control arm may need replacing?
Clunking over bumps, loose or wandering steering, and uneven tire wear may indicate a worn arm, ball joint or bushing. Have the suspension inspected, because other parts can cause similar symptoms.
Is the arm protected against rust?
Yes. Dorman designed it with additional coatings that offer rust and corrosion resistance.
