Moog RK623357 Suspension Control Arm and Ball Joint Assembly - Front Right Upper

Front Right Upper Control Arm for Infiniti and Nissan

Moog RK623357 is a premium suspension control arm and ball joint assembly for the front right upper position. It is built for foreign and domestic nameplates with structural strength and corrosion protection in mind, making it a direct-fit replacement for worn upper suspension components.

Fits 2014-2024 INFINITI Q50, front right upper. Fits 2017-2022 INFINITI Q60, front right upper. Fits 2009-2020 Nissan 370Z, front right upper.

Key Features

• Premium-grade suspension control arm and ball joint assembly
• Ball joint included for a complete upper arm replacement
• Bushings included for proper suspension articulation
• Corrosion protection helps support long-term durability
• Engineered for structural strength in demanding front suspension use
• Direct replacement for select INFINITI and Nissan applications

Detailed Description

Moog RK623357 is a front right upper suspension control arm assembly that combines the control arm, ball joint, and bushings in one service part. It is a practical replacement for vehicles that need restored upper suspension geometry and stable steering response. This part cross-references Dorman OE Solutions 522-558 and 528-106 for the same application. It also cross-references Mevotech Supreme CMS301114 for the same application.

Compatible vehicle coverage includes the INFINITI Q50, INFINITI Q60, Nissan 370Z, INFINITI QX50, EX37, G37, and EX35 in front right upper applications across the listed model years. The RK623357 part number is commonly searched by buyers looking for a premium OE-style suspension control arm for these platforms.

What It Helps Address

• Front-end clunking or knocking from a worn upper control arm
• Loose or inconsistent steering feel
• Uneven tire wear related to suspension wear
• Excessive play from a worn ball joint or bushings
• Restoring proper front suspension alignment and control

Installation Notes and Tips

Install on the front right upper suspension position only. After replacement, perform a professional wheel alignment to verify suspension geometry and steering wheel centering. Inspect adjacent suspension components, including the lower control arm, tie rod ends, and sway bar links, before completing the repair.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection. RK623357 includes the ball joint and bushings required for the assembly, supporting a complete replacement of the worn upper control arm unit.