Moog RK623404 Suspension Control Arm and Ball Joint Assembly - Front Upper

Moog RK623404 Front Upper Control Arm

Moog RK623404 is a premium front upper suspension control arm and ball joint assembly for select Lexus applications. It is built for structural strength and corrosion protection, with the ball joint and bushings included for a complete replacement on the specified front upper position.

Key Features

• Premium-grade suspension control arm and ball joint assembly
• Ball joint included for direct replacement service
• Bushings included for a more complete repair
• Engineered for structural strength and corrosion protection
• Front upper position for select Lexus models

Detailed Description

This Moog RK623404 assembly is made for front upper suspension service on 2006 Lexus GS300, 2007-2011 Lexus GS350, 2006-2015 Lexus IS250, 2011-2020 Lexus IS350, and 2016-2020 Lexus IS300. It is a premium replacement option for drivers servicing Lexus IS300 front upper suspension, Lexus IS350 front upper control arm wear, or Lexus GS350 front upper suspension components. The part number RK623404 is also useful when cross-referencing OE-style replacement needs for the same application.

This part cross-references Dorman - OE Solutions 527-116 for the same application.

Common Repair Uses

• Front upper suspension looseness or play
• Worn ball joint movement at the upper control arm
• Cracked or deteriorated control arm bushings
• Uneven tire wear related to front suspension wear
• Clunking or instability from worn Lexus front upper suspension parts

Installation Notes and Tips

Install RK623404 at the front upper suspension position only on the listed Lexus vehicles. After installation, perform a professional wheel alignment to verify suspension geometry and steering response. Inspect adjacent suspension components, fasteners, and mounting points before reassembly to confirm the repair addresses the full wear condition.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection, with a focus on durable replacement performance for foreign and domestic nameplates. RK623404 includes the ball joint and bushings specified in the product data for the listed applications.