Beck/Arnley 102-8318 front upper control arm with ball joint for the 2016-2023 Lexus IS300 V6 3.5L and other vehicles links the steering knuckle to the chassis so the front wheel can move with the suspension. This control arm and ball joint assembly gives the wheel a pivot point as the suspension moves.
A clunk over bumps, loose or wandering steering, or uneven front tire wear can mean the ball joint or bushings are worn. Because other suspension parts cause the same signs, first look with the engine off for torn rubber, a split ball joint boot or a bent arm.
The vehicles it fits include the 2016-2023 Lexus IS300 V6 3.5L, the 2011-2020 Lexus IS350 and the 2006-2015 Lexus IS250. It matches OE form, fit and function. If your Lexus is not one of those, open the Buyer's Guide tab and look up your exact model and engine.
Fit and size
Build and materials
One front upper control arm with its ball joint, plus new hardware and bushings where applicable. The vehicle takes two, so order two and fit them together.
Interchange: 2703233677 · 4861039135 · RK623404
This part cross-references / interchanges with the following part numbers:
Is this the right IS300 upper control arm for a 2016-2023 Lexus IS300 V6 3.5L?
Yes. Beck/Arnley 102-8318 is a front upper control arm with ball joint made for the 2016-2023 Lexus IS300 V6 3.5L.
Does the same IS300 control arm from a 2016-2023 Lexus IS300 V6 3.5L fit a 2011-2020 Lexus IS350?
Yes. Beck/Arnley 102-8318 also fits the 2011-2020 Lexus IS350, as well as the 2006-2015 Lexus IS250.
What comes with this Beck/Arnley control arm?
The ball joint comes with the arm, and new hardware and bushings are included where applicable. Beck/Arnley 102-8318 is sold as one front upper arm.
What does a worn ball joint on a front upper control arm sound or feel like?
A clunk over bumps, loose or wandering steering and uneven front tire wear can all be signs of a worn ball joint or worn bushings.
Is 4861039135 the same part as Beck/Arnley 102-8318?
Yes. Beck/Arnley 102-8318 replaces number 4861039135, and it also replaces 2703233677 and RK623404.
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.
