Moog RK623720 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Rearward

Moog RK623720 Front Left Lower Rearward Control Arm

Moog RK623720 is a premium suspension control arm and ball joint assembly for the front left lower rearward position. It is built for foreign and domestic applications with structural strength and corrosion protection in mind, and it includes the bushings and ball joint needed for a complete replacement.

Key Features

• Premium-grade suspension control arm and ball joint assembly
• Bushings included for direct replacement service
• Ball joint included for a complete front suspension repair
• Corrosion protection supports long-term durability
• Engineered for structural strength in demanding suspension use
• Cross-references Dorman OE Solutions 526-211 and Mevotech Supreme CMS701170 for the same application

Detailed Product Overview

This Moog control arm assembly is made for the front left lower rearward suspension position and is a direct-fit service part for select Audi models. It is a practical replacement for worn or damaged suspension components on the Audi A6 Quattro, Audi A7 Sportback, Audi Q5, Audi RS6 Avant, Audi RS7 Sportback, Audi S7, and Audi SQ5. The RK623720 part number is commonly searched by buyers looking for a front left lower rearward control arm assembly with an integrated ball joint and bushings.

For shoppers comparing OE-style suspension parts, RK623720 provides a focused solution for restoring front-end geometry and replacing service-worn pivot points. The Moog RK623720 is listed for 2018-2023 Audi applications, including 2018-2020 Audi Q5 and SQ5, 2019-2020 Audi A6 Quattro and A7 Sportback, 2020 Audi S7, and 2021-2023 Audi RS6 Avant and RS7 Sportback.

Common Repair Uses

• Replacing a worn front left lower rearward control arm on Audi suspension systems
• Addressing looseness or play from a worn ball joint
• Restoring suspension bushing support after cracking or deterioration
• Correcting front-end noise from a damaged lower control arm assembly
• Servicing Audi A6 Quattro, A7 Sportback, Q5, SQ5, RS6 Avant, RS7 Sportback, and S7 front suspension layouts

Installation Notes and Fitment

• Fits 2018-2020 Audi Q5, front left lower rearward
• Fits 2018-2020 Audi SQ5, front left lower rearward
• Fits 2019-2020 Audi A6 Quattro, front left lower rearward
• Fits 2019-2020 Audi A7 Sportback, front left lower rearward
• Fits 2020 Audi S7, front left lower rearward
• Fits 2021-2023 Audi RS6 Avant, front left lower rearward
• Fits 2021-2023 Audi RS7 Sportback, front left lower rearward

Verify suspension position before installation, since this part is specific to the front left lower rearward location. Professional alignment is recommended after control arm replacement to confirm proper suspension geometry and steering response.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection, with a premium-grade build intended for service replacement on foreign and domestic nameplates. The RK623720 includes the ball joint and bushings required for the assembly.