HomeSuspension > Suspension, Springs and Related ComponentsMoog RK621455 Suspension Control Arm and Ball Joint Assembly - Rear Right Lower
Part #: RK621455

Moog RK621455 Suspension Control Arm and Ball Joint Assembly - Rear Right Lower

Rear Right Lower
7 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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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: Ford and Mercury, Escape and Mariner
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Moog Suspension Control Arm and Ball Joint Assembly Overview

The Moog RK621455 suspension control arm and ball joint assembly is designed specifically for Ford Escape and Mercury Mariner models. This pre-greased, stamped steel control arm offers reliable performance and durability for your vehicle's suspension system.

  • Pre-greased for immediate installation
  • Includes rubber bushings for vibration dampening
  • Stamped steel control arm construction in black finish
  • Press-in ball joint with threaded stud for secure mounting
  • Mounting hardware included for complete installation
  • Compatible with Ford Escape and Mercury Mariner models

Detailed Product Description

The Moog RK621455 suspension control arm and ball joint assembly features a stamped steel control arm with a maximum length of 20.530 inches, finished in black for corrosion resistance. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to reduce noise and absorb road vibrations, enhancing ride comfort. The ball joint is press-in mounted with a threaded stud type, ensuring a secure and precise fit. Mounting hardware is provided to facilitate a straightforward replacement process.

Compatible Vehicles and Applications

This control arm assembly is compatible with Ford Escape and Mercury Mariner models, making it a suitable replacement part for suspension repairs or upgrades on these vehicles. The part number RK621455 ensures you receive the correct fitment for your specific model.

Common Suspension Issues Addressed

  • Worn or damaged control arm bushings causing steering instability
  • Loose or failing ball joints leading to uneven tire wear
  • Excessive suspension noise or vibration
  • Alignment problems due to bent or compromised control arms
  • Improved handling and suspension response after replacement

Installation Notes and Tips

Installation of the Moog RK621455 control arm assembly requires basic suspension tools and mechanical knowledge. Since the part comes pre-greased and includes mounting hardware, it simplifies the replacement process. Ensure the vehicle is properly supported and aligned after installation to maintain optimal handling and tire wear.

Quality Assurance and Warranty

Moog parts are engineered to meet or exceed OEM specifications. The RK621455 control arm 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 NumberRK621455
AdjustableNo
Ball Joint Mounting TypePress In
Ball Joint Stud TypeThreaded
Bushing MaterialRubber
Bushings IncludedYes
Control Arm ColorBlack
Control Arm MaterialStamped Steel
Control Arm Maximum Length20.530
Grease Fitting IncludedNo
Mounting Hardware IncludedYes
Pre-GreasedYes

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
2012FordEscapeRear Right LowerPremium OE Replacement; Enhanced over OE Design
2011FordEscapeRear Right LowerPremium OE Replacement; Enhanced over OE Design
2011MercuryMarinerRear Right LowerPremium OE Replacement; Enhanced over OE Design
2010FordEscapeRear Right LowerPremium OE Replacement; Enhanced over OE Design
2010MercuryMarinerRear Right LowerPremium OE Replacement; Enhanced over OE Design
2009FordEscapeRear Right LowerPremium OE Replacement; Enhanced over OE Design
2009MercuryMarinerRear Right LowerPremium OE Replacement; Enhanced over OE Design

* 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:

522-3209L8Z5500CCB85534CMS40155

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