HomeSuspension > Suspension, Springs and Related ComponentsMoog RK623351 Suspension Control Arm and Ball Joint Assembly - Front Right Lower
Part #: RK623351

Moog RK623351 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Front Right Lower
5 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$255.76Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Cadillac, CTS
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Moog RK623351 Front Right Lower Control Arm

Moog RK623351 is a premium suspension control arm and ball joint assembly for the front right lower position on select Cadillac CTS models. It is built for structural strength and corrosion protection, with the ball joint and bushings included for a complete OE-style replacement.

Key Features

  • Fits 2003-2007 Cadillac CTS, front right lower
  • Premium-grade suspension control arm and ball joint assembly
  • Ball joint included for direct replacement service
  • Bushings included for a more complete repair
  • Engineered for structural strength and corrosion protection
  • Moog part number RK623351 for easy identification

Detailed Description

This Moog control arm assembly is made for the 2003-2007 Cadillac CTS with RPO Code E5A retuned chassis at the front right lower suspension position. It combines the control arm, ball joint, and bushings into one service part, helping restore suspension geometry and steering response on the Cadillac CTS. The premium construction and corrosion-resistant focus make it a practical OE replacement for daily-driven vehicles that need dependable front suspension service. This part cross-references Dorman - OE Solutions 521-020 for the same application.

Common Repair Uses

  • Front-end clunking or looseness from worn suspension joints
  • Uneven tire wear caused by worn lower control arm components
  • Steering wander or reduced directional stability
  • Excess play in the front right lower suspension on a Cadillac CTS
  • Replacement of a damaged or corroded OE control arm assembly

Installation Notes and Tips

Verify vehicle fitment by year, model, position, and RPO Code E5A before installation. This part is for the front right lower location on the Cadillac CTS and should be installed with suspension at normal ride height when final tightening is performed. After replacement, a professional wheel alignment is recommended to confirm proper suspension angles and tire wear settings.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection, making RK623351 a solid replacement choice for the Cadillac CTS front suspension.

BrandMoog
Part NumberRK623351
Bushings IncludedYes
Ball Joint IncludedYes
Bushing IncludedYes
Grade TypePremium

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2007CadillacCTSFront Right LowerRPO Code E5A RETUNED CHASSIS
2006CadillacCTSFront Right LowerRPO Code E5A RETUNED CHASSIS
2005CadillacCTSFront Right LowerRPO Code E5A RETUNED CHASSIS
2004CadillacCTSFront Right LowerRPO Code E5A RETUNED CHASSIS
2003CadillacCTSFront Right LowerRPO Code E5A RETUNED CHASSIS

* 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:

159045992573393425758280521-020CB90444CB90444PRCMS50191TC7641

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