Dorman 520-556 front right lower control arm with ball joint for the 2004-2010 BMW X3 locates the wheel and carries the ball joint it pivots on. Also called a Dorman suspension control arm and ball joint assembly, it directly replaces the original assembly.
- Part of the Dorman OE Solutions line
- Iron control arm with rubber bushings
- Additional coatings for rust and corrosion resistance
- Threaded ball joint stud with a 14 mm thread diameter
- Evaluated in a testing process aimed at a smooth ride and directional stability
Quick facts
- Part: Dorman 520-556 control arm with ball joint
- Also called: control arm and ball joint assembly
- Fits: 2004-2010 BMW X3
- Position: Front right lower rearward
- Material: Iron
- Condition: New
A clunk over bumps, vague steering or uneven tire wear can mean this arm or its ball joint is worn, though a worn tie rod end or sway bar link can be behind the same signs.
Fits
This Dorman lower control arm is a direct replacement for the original on the 2004-2010 BMW X3, which takes one in this position. This listing is one arm for the front right; the front left is a separate part, and both sides are normally replaced together.
Specifications
Fit and size
- Position: front right lower rearward
- Quantity per vehicle: 1
- Control arm maximum length: 237 mm
- Control arm maximum width: 288.5 mm
- Mounting hole diameter: 12.2 mm
- Ball joint thread diameter: 14 mm
Build and materials
- Control arm type: casting/forged
- Control arm material: iron
- Bushing material: rubber
- Grade: standard replacement
- Condition: new
- Country of origin: Taiwan
In the box
One control arm and ball joint assembly with mounting hardware. A grease fitting is not included.
Installation notes
- The ball joint is pre-greased.
- Ball joint and bushings come installed, which saves time and labor.
Interchange: 102-6161
31103412136 · 31103415028 · 31103418338 · 31103426434 · 31103451882 · 31122229522 · TC1482 · CA4411 · 2CB10046 · RK620184 · FA4557 · GS10107 · CMS10107 · 2605661 · 1502014 · JTC1127
This part cross-references / interchanges with the following part numbers:
31103412136, 31103415028, 31103418338, 31103426434, 31103451882, 31122229522, 102-6161, TC1482, CA4411, 2CB10046, RK620184, FA4557, GS10107, CMS10107, 2605661, 1502014, JTC1127
Frequently Asked Questions
Is this 2004-2010 BMW X3 control arm for the front right side?
Yes. Dorman 520-556 is the front right lower control arm for the 2004-2010 BMW X3. The front left side takes a separate part.
Are Dorman control arm bushings included with this front right arm?
Yes. This Dorman 520-556 assembly comes with rubber bushings and the ball joint already installed, and mounting hardware is included. A grease fitting is not included.
What thread size does the ball joint on this Dorman control arm have?
The ball joint stud is threaded, with a 14 mm thread diameter. The mounting hole on the arm measures 12.2 mm.
How can I tell if the ball joint on this arm is worn?
A clunk over bumps, vague steering or uneven tire wear can point to a worn joint, but other suspension parts cause the same signs. A shop can test the joint for play.
Does Dorman 520-556 replace part number 31103412136?
Yes. 31103412136 is listed as an interchange number for Dorman 520-556, along with the other cross-references on the Interchange line.
