HomeSuspension > Suspension, Springs and Related ComponentsMoog RK621601 Suspension Control Arm and Ball Joint Assembly - Front Left Upper
Part #: RK621601

Moog RK621601 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Front Left Upper
10 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: INFINITI, Q40, G37, G25, and G35
Easy Returns — Return within 60 days for a full refund
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Moog Suspension Control Arm and Ball Joint Assembly Overview

The Moog RK621601 suspension control arm and ball joint assembly is engineered for precise fitment on Infiniti G25, G35, G37, and Q40 models. Designed with durability and performance in mind, this assembly features forged aluminum construction and pre-greased components to ensure reliable operation and long service life.

  • Pre-greased for immediate installation and reduced maintenance
  • Includes rubber bushings for effective vibration dampening
  • Forged aluminum control arm for strength and corrosion resistance
  • Press-in ball joint mounting with pinch-type stud for secure fit
  • Mounting hardware included for complete installation
  • Gray control arm color for corrosion protection and aesthetic consistency

Detailed Product Description

The Moog RK621601 suspension control arm and ball joint assembly is specifically designed to meet the suspension needs of Infiniti G25, G35, G37, and Q40 vehicles. The control arm is constructed from forged aluminum, providing a balance of lightweight strength and resistance to corrosion. This assembly comes pre-greased, eliminating the need for additional lubrication during installation and helping to extend the lifespan of the ball joint and bushings. The rubber bushings included in the assembly help absorb road vibrations and reduce noise, contributing to a smoother ride quality.

The ball joint features a press-in mounting type with a pinch stud, ensuring a secure and stable connection to the suspension system. All necessary mounting hardware is included, simplifying the installation process. The gray finish on the control arm adds an extra layer of protection against environmental elements.

Common Applications and Problem Resolution

  • Replacement for worn or damaged suspension control arms on Infiniti G25, G35, G37, and Q40
  • Addresses issues with suspension noise caused by deteriorated bushings
  • Improves steering stability and alignment by restoring proper control arm function
  • Eliminates excessive play or looseness in the ball joint assembly
  • Helps correct uneven tire wear related to suspension component failure

Installation Notes and Tips

  • Pre-greased components reduce installation time but verify lubrication before assembly
  • Use included mounting hardware to ensure proper fit and torque specifications
  • Inspect surrounding suspension components for wear during installation
  • Alignment check is recommended after installation to maintain vehicle handling

Quality Assurance and Warranty

Moog suspension components are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The RK621601 assembly undergoes rigorous quality control testing to maintain consistent fit and function. While specific warranty details may vary, Moog typically offers a limited warranty covering defects in materials and workmanship. Consult product documentation or Moog directly for exact warranty terms.

BrandMoog
Part NumberRK621601
AdjustableNo
Ball Joint Mounting TypePress In
Ball Joint Stud TypePinch
Bushing MaterialRubber
Bushings IncludedYes
Control Arm ColorGray
Control Arm MaterialForged Aluminum
Grease Fitting IncludedNo
Mounting Hardware IncludedYes
Pre-GreasedYes

This part fits 10 vehicles. Search below:

YearMakeModelBody Type# DoorsPositionNotes
2015INFINITIQ40Front Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2013INFINITIG37Sedan4 DoorFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2012INFINITIG25Front Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2012INFINITIG37Sedan4 DoorFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2011INFINITIG25Front Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2011INFINITIG37Sedan4 DoorFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2010INFINITIG37Sedan4 DoorFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2009INFINITIG37Sedan4 DoorFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2008INFINITIG35Front Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2007INFINITIG35Sedan4 DoorFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

260683245D1404502-1404522-05154525JK000CB61047CMS301109FA3909MS301109

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.