Moog RK620318 Suspension Control Arm and Ball Joint Assembly - Rear Left Lower

Moog RK620318 Rear Left Lower Control Arm

Moog RK620318 is a suspension control arm and ball joint assembly for the rear left lower position on select Ford, Mercury, and Mazda vehicles. It is built with stamped steel construction, pre-greased components, and corrosion-focused engineering for direct replacement service on the listed applications.

Key Features

• Fits 2001-2008 Ford Escape, rear left lower
• Fits 2005-2008 Mercury Mariner, rear left lower
• Fits 2001-2006 Mazda Tribute, rear left lower
• Stamped steel control arm with black finish
• Pre-greased with grease fitting included
• Rubber bushings included
• Press-in ball joint with threaded stud type
• Mounting hardware included
• Non-adjustable design for direct replacement use

Detailed Description

The Moog RK620318 suspension control arm and ball joint assembly is engineered for the rear left lower suspension position on the Ford Escape, Mercury Mariner, and Mazda Tribute. Its stamped steel construction provides structural strength, while the corrosion-protection focus supports long-term service in demanding undercar conditions. The assembly includes bushings, a pre-greased ball joint, and a grease fitting for serviceability. This part cross-references Dorman - OE Solutions 520-281 for the same application.

For drivers searching for a rear left lower control arm for 2001-2008 Ford Escape, 2005-2008 Mercury Mariner, or 2001-2006 Mazda Tribute, Moog RK620318 offers an OE-style replacement format with the correct mounting style and fitment-specific geometry. The RK620318 part number is commonly used when replacing worn suspension components that affect rear suspension stability and alignment.

Common Problems This Part Can Address

• Clunking or knocking from the rear suspension
• Excessive play caused by worn bushings or ball joint wear
• Uneven rear tire wear related to suspension looseness
• Rear-end instability over bumps or during cornering
• Failed inspection due to damaged control arm components

Installation Notes and Tips

Confirm vehicle year, make, model, and rear left lower position before ordering. The RK620318 uses a press-in ball joint and threaded stud type, so proper suspension tools and torque procedures are important during installation. After replacement, a rear suspension inspection and alignment check are recommended to verify geometry and fastener integrity.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection on foreign and domestic nameplates. RK620318 is built to meet OEM standards for the listed applications and includes service-oriented features such as a grease fitting and pre-greased components.