Moog RK643576 Suspension Control Arm - Rear Left Upper

Moog RK643576 Rear Left Upper Control Arm

The Moog RK643576 is a premium suspension control arm built for structural strength and corrosion protection. It is a direct-fit suspension component for select Hyundai Sonata and Kia Optima applications, with fitment coverage for the rear left upper position.

Key Features

• Premium-grade suspension control arm for rear suspension service
• Engineered for structural strength in demanding road conditions
• Corrosion-protection focus for long-term durability
• Direct fit for the rear left upper position
• Fits 2017-2020 Kia Optima, rear left upper
• Fits 2016-2019 Hyundai Sonata, rear left upper

Detailed Description

Moog RK643576 is a premium control arm for foreign and domestic nameplates, built for the rear left upper suspension position. It is a practical replacement for worn or damaged rear suspension hardware on the Hyundai Sonata and Kia Optima, helping restore proper suspension geometry and stable rear-end control. This part cross-references Dorman - OE Solutions 526-203 for the same application.

What It Is Used For

• Replacing a worn rear left upper control arm
• Addressing rear suspension looseness or clunking
• Correcting uneven rear tire wear linked to suspension wear
• Restoring rear suspension alignment stability
• Servicing Hyundai Sonata and Kia Optima rear suspension systems

Installation Notes and Tips

Verify vehicle year, make, model, and rear left upper position before installation. After replacement, perform a professional wheel alignment to confirm suspension geometry. For fitment-based searches, this part is commonly selected for a 2016-2019 Hyundai Sonata rear left upper control arm or a 2017-2020 Kia Optima rear left upper control arm. Part number RK643576 should be matched to the vehicle application before service.

Quality Assurance

Moog positions this premium control arm line around structural strength and corrosion protection for dependable suspension service. Confirm all mounting points and suspension settings during installation to complete the repair correctly. RK643576 is the catalog reference for this application.