Help keep your rear suspension located and tracking true with the Mevotech Supreme Lateral Arm and Ball Joint Assembly CMS801048. This rear lower forward lateral link with an integrated ball joint drops in as a direct-fit replacement for many vehicles, among them the 2010-2019 Subaru Outback, 2009-2018 Subaru Forester and 2010-2019 Subaru Legacy — see the "Vehicles it fits" section for the full list of applications.
- Forged steel construction: a structure change adds durability to this upgraded lateral arm.
- Sintered bearings: built for longer-lasting performance.
- 180° SAE grease fitting included: makes routine servicing simple.
- Part-specific hex nut provided: speeds up ball joint installation.
- Protective surface treatment: helps resist rust build-up for added longevity.
The lateral arm locates the rear wheel and controls its side-to-side movement, while the integrated ball joint lets the suspension articulate over bumps. Worn arms or a loose ball joint can show up as clunking, uneven rear tire wear, or vague handling. If a failed lateral arm or ball joint is the cause, this assembly replaces it in the rear lower forward position; have your suspension diagnosed to confirm the source before replacing.
Interchange: 524-777
524777 · 19340907 · TC5148 · LA72615 · LA72615PR · CA5313 · RK100124 · 2607792 · 30030923 · SU00300362 · 20250FG020 · 20250FG021 · X47LA7395 · JTC2844
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
19340907, TC5148, 524-777, LA72615, LA72615PR, CA5313, RK100124, CMS801048, 2607792, 30030923, SU00300362, 20250FG020, 20250FG021, X47LA7395, JTC2844
Frequently Asked Questions
Where is this lateral arm located on the vehicle?
It's the rear lower forward lateral arm and ball joint assembly for the listed applications.
What is this lateral arm made of?
It uses forged steel construction with a structural change for added durability, plus a protective surface treatment to help resist corrosion and rust build-up.
Does it come with a grease fitting and hardware?
Yes — a 180 degree SAE grease fitting is included for simple servicing, along with a part-specific hex nut to speed up ball joint installation.
What are the signs this part may need replacing?
Clunking from the rear, uneven rear tire wear, or vague handling can be signs of a worn lateral arm or ball joint. Have the suspension diagnosed to confirm the cause before replacing.
Will this assembly fit my vehicle?
It fits many vehicles, among them the 2010-2019 Subaru Outback, 2009-2018 Subaru Forester and 2010-2019 Subaru Legacy. Check the "Vehicles it fits" section to confirm your exact year and model.
