Take the play out of worn 4RUNNER upper control arms and sharpen your steering with the SKP Suspension Control Arm and Ball Joint Assembly SK620064. This front-left-upper assembly drops in as a direct-fit replacement for the 2003-2023 Toyota 4Runner, 2007-2014 Toyota FJ Cruiser, 2010-2023 Lexus GX460, and 2003-2009 Lexus GX470, pairing a durable control arm with a pre-installed ball joint in one ready-to-bolt unit.
If a failed upper control arm or ball joint is behind your loose steering, clunking over bumps, or uneven front tire wear, this SKP assembly helps restore precise handling and control. A popular fix for 3rd gen 4RUNNER upper control arms and later models alike.
Interchange: 521-371 · M13-K620064B
1026325 · 521371 · 4806729225 · 486300K010 · 4863060020 · 4863060040 · CB74007 · RK620064 · CMS86114 · GS86114 · M13K620064B
This part cross-references / interchanges with the following part numbers:
Does this fit my Toyota 4Runner?
Yes — it's a direct-fit front left upper assembly for the 2003-2023 Toyota 4Runner, plus the 2007-2014 FJ Cruiser and the 2010-2023 Lexus GX460 and 2003-2009 GX470. Check the Buyer's Guide tab.
Is the ball joint already installed?
Yes, the assembly ships pre-assembled with the ball joint already installed, so you replace both worn parts in one step.
What is a control arm and ball joint assembly?
It's the front left upper suspension link that locates the wheel and pivots on its ball joint, letting the wheel move and steer while holding the alignment geometry in place.
Does it come with mounting hardware?
The necessary mounting hardware is included where pictured; consult the vehicle service information for the correct fasteners and whether any may be reused.
What are signs my upper control arm or ball joint needs replacing?
Loose or wandering steering, clunking over bumps, and uneven front tire wear can be signs. Diagnose the cause before replacing, since other parts can cause the same symptoms.
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.
