Delphi Suspension Control Arm and Ball Joint Assembly P/N:TC9398

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$155.99
MPN: TC9398
UPC: 689604438879
Item Package Quantity: 1
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Delphi Suspension Control Arm and Ball Joint Assembly P/N:TC9398
Delphi Suspension Control Arm and Ball Joint Assembly P/N:TC9398
$155.99

Keep your front suspension located and your steering geometry true with the Delphi control arm and ball joint assembly, part number TC9398. This front left upper control arm integrates the ball joint into a single unit, and it drops in as a direct-fit replacement for the 2013 Lexus GS350 and 2013 Lexus GS450H. If a worn control arm bushing or ball joint is behind clunking over the road, loose steering, or uneven tire wear, replacing the assembly renews the mount and pivot in one step.

Delphi applies its OE steering expertise to this aftermarket unit, with parts validated against extreme temperatures (below -40°C and over 120°C) and 720 hours of salt-spray exposure.

  • 100% inspected: Every control arm undergoes crack detection and ultrasonic flaw detection so materials match OE specifications.
  • Micron-tolerance ball studs: The ball studs are machined to micron tolerances for durable, smooth joint operation.
  • Robot-welded: Robotic welding delivers consistent quality and performance.
  • Anti-corrosion protection: Applied to each part for corrosion prevention and improved appearance.

See the Buyer's Guide tab to confirm the application for your vehicle.

Interchange: 526-539 · 48630-39115
526539 · 4863039115 · 1028145 · RK623971 · CMS861276 · X30CJ0989

This part cross-references / interchanges with the following part numbers:

1028145, 526-539, RK623971, CMS861276, X30CJ0989, 48630-39115

Frequently Asked Questions

What vehicles does the Delphi TC9398 control arm fit?

It is a direct-fit replacement for the 2013 Lexus GS350 and 2013 Lexus GS450H. Check the Buyer's Guide tab to confirm the application for your vehicle.

Is this a control arm and ball joint assembly?

Yes. The TC9398 is a front left upper control arm with the ball joint integrated, so you replace both the arm and the joint as one unit.

What position on the vehicle does this fit?

It is cataloged as the front left upper control arm for the listed applications.

What symptoms suggest I need this Delphi control arm?

Signs a control arm or its ball joint may need replacing include clunking over bumps, loose or wandering steering, and uneven tire wear. Diagnose the cause before replacing.

How is the Delphi control arm built for durability?

Delphi machines the ball studs to micron tolerances, uses robotic welding, applies anti-corrosion protection, and runs 100% crack and ultrasonic flaw detection to match OE specifications.