Replace a worn front left lower arm in a single step with this Dorman control arm, part number 520-251, a direct replacement for the original equipment on the 1989-1997 Ford Cougar, 1989-1997 Ford Thunderbird and 1989-1997 Mercury Cougar. See the "Vehicles it fits" section for engine-specific fitment.
Dorman built this suspension control arm to directly replace the original assembly on the listed applications. It arrives with the ball joint and bushings already installed, which saves time and labor on the repair. The design went through an industry-leading evaluation process intended to deliver a smooth ride, directional stability and predictable dynamics.
- Direct replacement: takes the place of the original front left lower assembly on the listed vehicles.
- Pre-assembled: the ball joint and bushings come pre-installed, so the arm goes in as one unit.
- Tested engineering: underwent industry-leading testing aimed at a smooth, stable and safe ride.
- Coated for protection: additional coatings provide rust and corrosion resistance.
The lower control arm connects the steering knuckle to the chassis. It lets the wheel travel up and down while holding it in position, and the ball joint forms the pivot that allows the wheel to steer. Signs this part may need replacing include clunking over bumps, loose or wandering steering, and uneven tire wear. This listing is for the left side and is sold individually. Replacing both sides together is recommended.
Interchange: 623.61125 · E9SZ-3079-L
62361125 · E9SZ3079L · TC7683 · CA10105 · E95Z3079A · F5SZ3079A · CK80053 · K80053 · RK80053 · FA4648 · GK80053 · CMK80053 · 2605753 · 2CB40039 · SK80053 · JTC1586
This part cross-references / interchanges with the following part numbers:
623.61125, TC7683, CA10105, E95Z3079A, F5SZ3079A, CK80053, K80053, RK80053, FA4648, GK80053, CMK80053, 2605753, 2CB40039, SK80053, E9SZ-3079-L, JTC1586
Frequently Asked Questions
Is this Dorman lower control arm correct for a 1989-1997 Ford Thunderbird?
Yes. It is listed as the front left lower arm for the 1989-1997 Ford Thunderbird. See the "Vehicles it fits" section for every listed application.
What comes with the Dorman suspension control arm and ball joint assembly?
The arm arrives with the ball joint and bushings pre-installed. Consult the vehicle service information for the correct fasteners and whether the originals may be reused.
What does a lower control arm do?
It connects the steering knuckle to the chassis. It lets the suspension travel up and down while holding the wheel in position, and the ball joint forms the pivot that allows the wheel to steer.
What are signs the control arm or ball joint may need replacing?
Clunking over bumps, loose or wandering steering and uneven tire wear may be signs of a worn arm, bushing or ball joint. Have the suspension inspected to confirm the cause before replacing parts.
Should I replace both sides at the same time?
This listing is for the front left lower arm only and is sold individually. Replacing both sides together is recommended, and a wheel alignment check after installation is advisable.
