Moog RK643621 Suspension Control Arm - Front Right Lower Forward

Premium Front Right Lower Forward Control Arm

Moog RK643621 is a premium suspension control arm for the front right lower forward position. It is engineered for structural strength and corrosion protection, making it a direct-fit replacement for select Porsche Cayenne and Audi SUV applications.

Key Features

• Premium-grade suspension control arm for front right lower forward placement
• Built for structural strength in demanding suspension service
• Corrosion-resistant construction for long-term durability
• Direct replacement for select Porsche Cayenne, Audi Q7, Audi Q8, and Audi e-tron models
• Cross-references Mevotech Supreme CMS701205 for the same application
• Part number RK643621 for ordering and fitment verification

Detailed Description

Moog RK643621 is a premium control arm designed for foreign and domestic nameplates, with a focus on strength and corrosion protection. This front right lower forward suspension control arm is used on 2019-2025 Porsche Cayenne, 2020-2023 Audi e-tron Quattro, 2022-2023 Audi e-tron S, 2022-2023 Audi e-tron S Sportback, 2020-2023 Audi e-tron Sportback, 2020-2023 Audi Q7, and 2020-2023 Audi Q8. It also fits 2017-2019 Audi Q7, 2019 Audi A8 Quattro, 2019 Audi e-tron Quattro, and 2019 Audi Q8 with OEM-standard control arm and ball joint assembly coverage noted in the fitment data. If you are replacing a worn front right lower forward control arm on an Audi Q7, Audi Q8, or Porsche Cayenne, RK643621 provides a precise application match. The part number RK643621 is also useful when cross-checking service records or sourcing the correct suspension component.

What It Helps Address

• Front-end clunking or looseness from a worn control arm
• Uneven tire wear caused by suspension geometry issues
• Steering pull related to degraded front suspension components
• Excessive play in the front right lower forward suspension position
• Corrosion-related replacement needs on high-mileage vehicles

Installation Notes and Tips

Verify year, make, model, and front right lower forward position before installation. Confirm the existing suspension layout on the vehicle, especially on Audi Q7, Audi Q8, and Porsche Cayenne applications, and compare the original part number RK643621 against the removed component. A professional alignment is recommended after suspension arm replacement to restore proper handling and tire wear characteristics.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection. This part cross-references Mevotech Supreme CMS701205 for the same application.