Moog RK622127 Suspension Control Arm and Ball Joint Assembly - Rear Right Upper

OE-Style Rear Right Upper Control Arm

The Moog RK622127 is a suspension control arm and ball joint assembly for the rear right upper position on select Ford Escape and Mercury Mariner models. Built with forged steel and rubber bushings, it is engineered for structural strength and corrosion protection in everyday suspension service.

Compatible with 2001-2008 Ford Escape, rear right upper, and 2005-2008 Mercury Mariner, rear right upper, this assembly is a direct-fit suspension replacement for vehicles needing a rear upper control arm with an integrated ball joint. The RK622127 is pre-greased and includes mounting hardware for a cleaner service replacement.

• Forged steel control arm construction for strength and durability
• Pre-greased assembly for reduced prep during installation
• Rubber bushings included for suspension isolation
• Press-in ball joint with threaded stud design
• Black corrosion-resistant finish
• Mounting hardware included
• No grease fitting included
• Non-adjustable design

Detailed Product Information

Moog RK622127 is built for the rear right upper suspension position and follows OEM-style fitment for the Ford Escape and Mercury Mariner platforms listed above. The forged steel arm helps maintain suspension geometry under load, while the rubber bushings support controlled movement and help reduce noise and vibration. This part cross-references Dorman OE Solutions 521-421 for the same application.

Common Repair Applications

• Rear suspension clunking or looseness
• Worn or cracked control arm bushings
• Ball joint wear affecting rear suspension stability
• Corrosion-damaged upper control arm replacement
• Restoring rear right upper suspension alignment on Ford Escape and Mercury Mariner models

Installation Notes

Install RK622127 at the rear right upper suspension location only. Verify press-in ball joint orientation, torque all fasteners to factory specifications, and inspect adjacent suspension components before completing the repair. Because this assembly is pre-greased and does not include a grease fitting, no routine greasing point is provided after installation.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection for foreign and domestic nameplates. RK622127 is built to meet OEM standards for the listed Ford Escape and Mercury Mariner applications.