Help bring back a smooth, stable ride with the Dorman control arm 521-037, a front left lower arm built as a direct replacement for the original assembly on the 2004-2007 Ford Freestar and 2004-2007 Mercury Monterey. The ball joint and bushings arrive already installed, so you can replace the whole unit in one step instead of rebuilding the old arm piece by piece.
This Dorman suspension control arm and ball joint assembly connects the steering knuckle to the vehicle's chassis. It lets the wheel travel up and down with the suspension, and the ball joint gives the knuckle a pivot point for steering.
- Direct replacement: Designed to take the place of the original assembly on the listed applications.
- Ready to install: The ball joint and bushings come pre-installed, which saves time and labor.
- Evaluated for ride quality: Put through an industry-leading testing process aimed at a smooth ride, directional stability and predictable dynamics.
- Corrosion protection: Additional coatings help the arm resist rust and corrosion.
Signs a lower control arm may need replacing include clunking or knocking over bumps, loose or wandering steering, uneven tire wear, and a torn ball joint boot or cracked bushings. If worn bushings or a loose ball joint in the original arm are causing these symptoms, this Dorman lower control arm replaces them as one unit. Diagnose the cause before you replace parts. The arm is sold individually, and replacing the left and right arms together is often recommended. A wheel alignment is typically advised after installation.
Interchange: 622.61129 · 623.61129
62261129 · 62361129 · TC7749 · CA14462 · 3F2Z3079AA · 5F2Z3079AA · 5F2Z3079BA · CK80725 · K80725 · RK80725 · FA4460 · GK80725 · CMK80725 · MCSOE127 · 2605564 · 9CB40071 · SK521037 · 1508015 · JTC2388
This part cross-references / interchanges with the following part numbers:
622.61129, 623.61129, TC7749, CA14462, 3F2Z3079AA, 5F2Z3079AA, 5F2Z3079BA, CK80725, K80725, RK80725, FA4460, GK80725, CMK80725, MCSOE127, 2605564, 9CB40071, SK521037, 1508015, JTC2388
Frequently Asked Questions
Which vehicles does the Dorman control arm 521-037 fit?
It is listed for the 2004-2007 Ford Freestar and the 2004-2007 Mercury Monterey. See the "Vehicles it fits" section for full fitment details.
Does it come with the ball joint and bushings?
Yes. The ball joint and bushings come pre-installed in the arm, so you install it as one complete unit.
What position does this arm install in?
It is cataloged for the front left lower position. It is sold individually, and replacing the left and right arms together is often recommended.
What are signs a lower control arm may need replacing?
Common signs include clunking over bumps, loose or wandering steering, uneven tire wear, and a torn ball joint boot or cracked bushings. Diagnose the cause before you replace parts.
Does this control arm have corrosion protection?
Yes. Dorman applies additional coatings to help the arm resist rust and corrosion.
