Help keep the front left wheel properly located with the Beck/Arnley control arm 102-8145, a front left upper arm that comes with its ball joint so both are replaced in one step. It fits many vehicles, among them the 2021-2024 Lexus IS300, 2021-2024 Lexus IS350 and 2018-2024 Lexus RC300. See the "Vehicles it fits" section for the full list and engine details.
Beck/Arnley designs its parts as direct replacements for OE applications on foreign nameplates, with special attention to form, fit and function. Its product specialists work with a trusted global sourcing network to deliver OE-quality parts, and each part is held to Beck/Arnley's own requirements and specifications.
- OE match: Matches the original part's form, fit and function.
- Ball joint included: The control arm comes with its ball joint, so this control arm and ball joint assembly replaces the arm and joint together.
- Application specific: Built for the listed vehicles in the front left upper position.
The upper control arm links the steering knuckle to the vehicle's frame and lets the wheel travel up and down, while the ball joint provides the pivot for steering. Signs this part may need replacing include clunking or knocking over bumps, loose or wandering steering, uneven tire wear, or play in the ball joint. Replacing the left and right arms together is recommended to keep the suspension balanced side to side.
Interchange: 2703512015 · 4863039115
Frequently Asked Questions
Is this the right 2021-2024 Lexus IS300 upper control arm?
It is listed for the front left upper position on the 2021-2024 Lexus IS300. The "Vehicles it fits" section shows every listed vehicle.
Does the ball joint come with this control arm?
Yes. Beck/Arnley supplies the control arm with the ball joint, so the arm and joint are replaced together as one assembly.
What does an upper control arm do?
It connects the steering knuckle to the vehicle's frame and lets the wheel move up and down. The ball joint provides the pivot point for steering.
What are signs the control arm or ball joint may need replacing?
Common signs include clunking over bumps, loose or wandering steering, uneven tire wear and play in the ball joint. Diagnose the cause before replacing parts.
Should I replace both sides at the same time?
This listing is for the front left upper arm. Replacing the left and right arms together is recommended, and a wheel alignment is typically advised after control arm replacement.
