Moog RK643423 Suspension Control Arm - Rear Right Forward Lower

Brand Moog RK643423
Position Rear Right Forward Lower
Grade Type Premium
Fits INFINITI · 31 vehicles

Premium grade. Built for suspension service with a premium construction level.

Corrosion protection. Engineered to resist wear in demanding underbody conditions.

OEM-standard fit. Specified for listed applications with direct replacement intent.

Cross-references 551A01BA0A for the same application. See all 1.

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Premium Rear Control Arm

Moog RK643423 is a premium suspension control arm for the rear right forward lower position. It is built for Infiniti applications that need a direct replacement control arm and ball joint assembly with OEM-standard fitment.

Key Features

  • Premium-grade suspension control arm for precise rear suspension service.
  • Engineered for structural strength and corrosion protection.
  • Direct replacement design for compatible Infiniti applications.
  • Meets OEM standards for the listed fitments.

Detailed Description

Moog RK643423 is a suspension control arm for select Infiniti models, including QX50, QX70, Q60, EX37, FX37, FX50, G37, EX35, and FX35. This part number is designed for the rear right forward lower position and is specified as a suspension control arm and ball joint assembly that meets OEM standards. The premium construction supports consistent suspension geometry and dependable service in the applications listed. RK643423 is a practical replacement choice when restoring rear suspension performance on Infiniti QX50 and Infiniti G37 platforms, among others.

Moog premium control arms for foreign and domestic nameplates are engineered for structural strength and corrosion protection. Part number RK643423 is also cross-referenced to 551A01BA0A for the same application.

What It Helps Fix

  • Excessive suspension looseness or play at the control arm.
  • Worn ball joint-related handling issues.
  • Uneven rear suspension geometry.
  • Corrosion-related replacement needs.

Installation Notes and Tips

Verify the rear right forward lower position and match the listed Infiniti model and year before installation. Because this is a suspension control arm and ball joint assembly, inspect adjacent suspension components for wear during service. Confirm alignment after replacement to restore proper suspension geometry.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection, with OEM-standard fitment noted for the listed applications.

This part fits 31 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypePositionNotes
2017INFINITIQX50—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2017INFINITIQX70—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2016INFINITIQX50—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2016INFINITIQX70—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2015INFINITIQ60ConvertibleRear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2015INFINITIQX50—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2015INFINITIQX70—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2014INFINITIQ60ConvertibleRear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2014INFINITIQX50—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2014INFINITIQX70—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2013INFINITIEX37—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2013INFINITIFX37—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2013INFINITIFX50—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2013INFINITIG37ConvertibleRear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2012INFINITIEX35—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2012INFINITIFX35—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2012INFINITIFX50—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2012INFINITIG37ConvertibleRear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2011INFINITIEX35—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2011INFINITIFX35—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2011INFINITIFX50—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2011INFINITIG37ConvertibleRear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2010INFINITIEX35—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2010INFINITIFX35—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2010INFINITIFX50—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2010INFINITIG37ConvertibleRear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2009INFINITIEX35—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2009INFINITIFX35—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2009INFINITIFX50—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2009INFINITIG37ConvertibleRear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2008INFINITIEX35—Rear Right Forward LowerSuspension Control Arm and Ball Joint Assembly meets OEM standards.
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
551A01BA0A