HomeSuspension > Suspension, Springs and Related ComponentsMoog RK620103 Suspension Control Arm and Ball Joint Assembly - Front Left Upper
Part #: RK620103

Moog RK620103 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Front Left Upper
24 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Kia and Hyundai, Magentis, Optima, Sonata, XG350, and XG300
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Moog Suspension Control Arm and Ball Joint Assembly Overview

The Moog RK620103 suspension control arm and ball joint assembly is designed for reliable performance on select Hyundai and Kia models. This pre-greased, stamped steel control arm assembly offers a direct replacement solution for vehicles like the Hyundai Sonata and Kia Optima, ensuring proper suspension function and vehicle stability.

  • Pre-greased for immediate installation
  • Includes rubber bushings and mounting hardware
  • Stamped steel control arm construction in black finish
  • Press-in ball joint with threaded stud for secure fitment
  • Compatible with Hyundai Magentis, Sonata, Kia Optima, XG300, and XG350

Detailed Product Features and Specifications

The Moog RK620103 control arm assembly features a durable stamped steel arm with a maximum length of 8.5 inches, finished in black to resist corrosion. It comes pre-greased, eliminating the need for additional lubrication during installation. The assembly includes rubber bushings that help absorb road vibrations and reduce noise, contributing to a smoother ride. The ball joint is press-in mounted with a threaded stud type, providing a secure and precise fit. Mounting hardware is included to facilitate a straightforward replacement process.

Compatible Vehicles and Applications

This suspension control arm and ball joint assembly is compatible with several Hyundai and Kia models, including:

  • Hyundai Magentis
  • Hyundai Sonata
  • Kia Optima
  • Kia XG300
  • Kia XG350

Using the Moog RK620103 ensures proper suspension geometry and handling characteristics for these vehicles.

Common Suspension Issues Addressed

  • Worn or damaged control arm bushings causing excessive play
  • Faulty ball joints leading to steering instability
  • Uneven tire wear due to suspension misalignment
  • Clunking noises from suspension components
  • Reduced vehicle handling and ride comfort

Installation Notes and Tips

  • Pre-greased components reduce installation time and maintenance
  • Ensure all mounting hardware is securely tightened to manufacturer specifications
  • Inspect related suspension parts for wear during replacement
  • Alignment check is recommended after installation

Quality Assurance and Warranty

Moog suspension components are engineered to meet or exceed OEM standards. The RK620103 control arm and ball joint assembly undergoes rigorous testing to ensure durability and performance. While specific warranty details may vary, Moog typically offers a limited warranty covering defects in materials and workmanship.

BrandMoog
Part NumberRK620103
AdjustableNo
Ball Joint Mounting TypePress In
Ball Joint Stud TypeThreaded
Bushing MaterialRubber
Bushings IncludedYes
Control Arm ColorBlack
Control Arm MaterialStamped Steel
Control Arm Maximum Length8.500
Grease Fitting IncludedNo
Mounting Hardware IncludedYes
Pre-GreasedYes

This part fits 24 vehicles. Search below:

YearMakeModelPositionNotes
2006KiaMagentisFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2006KiaOptimaFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2005HyundaiSonataFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2005HyundaiXG350Front Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2005KiaMagentisFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2005KiaOptimaFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2004HyundaiSonataFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2004HyundaiXG350Front Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2004KiaMagentisFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2004KiaOptimaFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2003HyundaiSonataFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2003HyundaiXG350Front Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2003KiaMagentisFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2003KiaOptimaFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2002HyundaiSonataFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2002HyundaiXG350Front Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2002KiaMagentisFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2002KiaOptimaFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2001HyundaiSonataFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2001HyundaiXG300Front Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2001KiaMagentisFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2001KiaOptimaFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2000HyundaiSonataFront Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
1999HyundaiSonataFront 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:

101-5360260-5748260613145D119045D1254502-11895021254520-533521-76954410380005441038600CB60007CMS90101CMS90142FA3132FA4643JTC2453MS90101MS90142

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