Locate the front wheel precisely and let it steer and travel smoothly with the Beck/Arnley control arm and ball joint assembly (MPN 102-7797, also written 1027797). It's a direct-fit replacement for many vehicles, among them the 2013-2015 BMW X1, 2009-2013 BMW 328i xDrive and 2009-2013 BMW 335i xDrive; see the "Vehicles it fits" section for the full list and engine-level details. This front lower unit ships as a complete assembly, with the control arm supplied with its ball joint, so you replace a worn arm and a worn ball joint in one job.
- Complete assembly: control arm supplied with the ball joint for a full front-lower installation.
- OE-matched: engineered by Beck/Arnley to match the original equipment form, fit, and function.
- Hardware: new hardware and bushings included where applicable.
If a clunk over bumps, loose steering, or uneven front tire wear traces to a failed lower control-arm bushing or ball joint, this application-specific assembly replaces it. Diagnose the cause before ordering. It is sold individually, and replacing both sides together as a matched pair is recommended for balanced handling.
Interchange: L3711801 · 31126768989 · 62234058 · CB14185 · RK621945 · CMS101105
This part cross-references / interchanges with the following part numbers:
L3711801, 31126768989, 62234058, CB14185, RK621945, CMS101105
Frequently Asked Questions
Is this the right part for a 2013-2015 BMW X1 lower control arm replacement?
Yes. It's a front lower control arm with ball joint listed for the 2013-2015 BMW X1 and the other applications shown in the "Vehicles it fits" section.
Does the ball joint come with the control arm?
Yes. The control arm comes with its ball joint for a complete installation, so you can replace both in a single job.
What are signs this control arm may need replacing?
A clunk over bumps, loose steering or uneven front tire wear may be signs of a worn control-arm bushing or ball joint. Diagnose the cause before replacing the arm.
Are hardware and bushings included?
New hardware and bushings are included where applicable. Consult the vehicle service information for the correct fasteners and whether any originals may be reused.
Should I replace both sides at once?
It's sold individually, so this listing is one arm. Replacing both left and right sides as a matched pair is recommended for even, balanced handling.
