Restore precise steering and secure wheel location with the Beck/Arnley Suspension Control Arm and Ball Joint Assembly 102-8145 (also written 1028145), a front left upper control arm that arrives with its ball joint pre-assembled for a complete installation. It drops in as a direct-fit replacement designed to match OE form, fit, and function on the 2016-2020 Lexus GS F, 2016-2017 Lexus GS200T, 2018-2019 Lexus GS300, 2013-2020 Lexus GS350, 2013-2018 Lexus GS450H, 2021-2024 Lexus IS300, 2021-2024 Lexus IS350, 2022-2023 Lexus IS500, 2015-2020 Lexus RC F, 2016-2017 Lexus RC200T, 2018-2024 Lexus RC300, and 2015-2024 Lexus RC350 — see the Buyer's Guide tab for engine-level details.
Worn control-arm bushings or a failing ball joint can show up as clunking over bumps, loose or wandering steering, vibration, and uneven tire wear. If a worn front left upper arm or ball joint is the cause, this assembly replaces it.
Interchange: 2703512015 · 4863039115
This part cross-references / interchanges with the following part numbers:
What position does this control arm fit?
It is the front left upper control arm and ball joint assembly for the listed Lexus GS, IS, and RC applications. Confirm fitment for your vehicle.
Does it include the ball joint?
Yes. The control arm comes with the ball joint pre-assembled for a complete, one-part installation.
Is mounting hardware included?
New hardware and bushings are included where applicable. Consult the vehicle service information for the correct fasteners and whether any may be reused.
What is it made of?
Depending on the application, it is of steel, iron, or aluminum construction for strength and rust/corrosion resistance.
What are signs this part may need replacing?
Clunking over bumps, loose or wandering steering, vibration, or uneven tire wear can point to a worn arm or ball joint. Diagnose the cause before replacing.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
