Moog RK643874 Suspension Control Arm - Rear Lower Rearward

Moog RK643874 Rear Lower Rearward Control Arm

Moog RK643874 is a premium suspension control arm built for rear lower rearward applications on select Kia models. It is engineered for structural strength and corrosion protection, making it a direct-fit replacement for worn rear suspension components on the Kia Magentis and Kia Optima.

Key Features

• Premium-grade suspension control arm for rear lower rearward placement
• Engineered for structural strength in demanding suspension service
• Corrosion protection helps support long-term durability
• Fits 2006-2010 Kia Magentis, rear lower rearward
• Fits 2006-2010 Kia Optima, rear lower rearward
• Moog RK643874 is a fitment-specific replacement for select foreign and domestic applications

Detailed Description

Moog RK643874 is a premium suspension control arm for the rear lower rearward position. Built for 2006-2010 Kia Magentis and 2006-2010 Kia Optima applications, it addresses the suspension geometry used in these vehicles and supports stable rear suspension operation. The RK643874 part number is also referenced in OE-style replacement searches for these Kia platforms, making it a practical choice when replacing a worn rear control arm.

This part cross-references Dorman - OE Solutions 524-500 for the same application.

What It Is Used For

• Rear suspension looseness or excess movement
• Clunking or knocking from the rear suspension area
• Uneven tire wear related to worn suspension geometry
• Handling instability caused by a deteriorated control arm
• Restoring rear lower rearward suspension alignment on Kia Magentis and Kia Optima models

Installation Notes and Tips

Verify vehicle year, make, model, and rear lower rearward position before installation. After replacement, a professional wheel alignment is recommended to confirm suspension geometry is set correctly. Compare the original control arm to RK643874 before installation to confirm fitment details match the vehicle.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection. RK643874 is a premium-grade replacement part for 2006-2010 Kia Magentis and 2006-2010 Kia Optima rear lower rearward applications.