Moog RK643891 Suspension Control Arm - Rear Right Lower Rearward

Moog RK643891 Rear Right Lower Rearward Control Arm

The Moog RK643891 is a premium suspension control arm built for the rear right lower rearward position on select Mazda applications. It is engineered for structural strength and corrosion protection, making it a direct-fit replacement for worn suspension components on 2014-2018 Mazda 3 and Mazda 3 Sport models.

Key Features

• Premium-grade suspension control arm for rear suspension service
• Engineered for structural strength to support stable suspension geometry
• Corrosion protection helps resist long-term exposure in underbody conditions
• Direct replacement for the rear right lower rearward position
• Fits 2014-2018 Mazda 3, rear right lower rearward
• Fits 2014-2018 Mazda 3 Sport, rear right lower rearward

Detailed Description

Moog RK643891 is a premium suspension control arm for the rear right lower rearward location. It is built for Mazda 3 and Mazda 3 Sport models from 2014 through 2018, with fitment listed for the rear right lower rearward position. This part number, RK643891, is intended for drivers replacing a worn or damaged rear suspension arm while maintaining proper alignment and suspension control. This part cross-references Mevotech Supreme CMS761210 for the same application.

MOOG premium control arms for foreign and domestic nameplates are engineered with structural strength and corrosion protection in mind, which makes this component a practical choice for rear suspension repair on Mazda 3 platforms. RK643891 is a fitment-specific replacement for the rear right lower rearward control arm location.

What It Helps Address

• Rear suspension looseness or instability
• Clunking or knocking from the rear suspension area
• Uneven tire wear related to suspension geometry issues
• Excess play from a worn rear control arm
• Restoring correct rear wheel positioning on Mazda 3 and Mazda 3 Sport

Installation Notes and Tips

Verify the rear right lower rearward position before ordering, since this control arm is location-specific. Confirm vehicle year, model, and suspension layout against the fitment listing for 2014-2018 Mazda 3 and Mazda 3 Sport. After installation, a professional alignment is recommended to restore suspension geometry and tire wear characteristics.

Quality Assurance

Moog is known for suspension components engineered for strength and corrosion resistance. RK643891 is a premium-grade control arm built to meet the demands of rear suspension replacement on Mazda applications.