Moog RK641777 Suspension Control Arm - Rear Lower

Moog RK641777 Rear Lower Control Arm

Moog RK641777 is a stamped steel suspension control arm built for the rear lower position on select Jeep applications. It uses rubber bushings and a painted black finish to support structural strength and corrosion protection in everyday driving conditions.

Key Features

• Stamped steel construction for a rigid rear suspension mounting point
• Rubber bushings included for controlled suspension movement
• Painted black finish for added corrosion resistance
• Regular-grade replacement control arm for suspension service
• Direct-fit rear lower control arm for Jeep Wrangler and Wrangler JK applications
• Part number RK641777 for easy catalog matching

Detailed Description

This Moog suspension control arm is engineered for the rear lower position on 2007-2017 Jeep Wrangler and 2018 Jeep Wrangler JK models. The stamped steel body helps maintain suspension geometry under load, while the rubber bushings support a quieter, more controlled connection at the chassis and axle mounting points. Moog RK641777 is a practical OE-style replacement for drivers servicing rear suspension wear on Jeep Wrangler JK and Wrangler platforms.

This part cross-references Mopar 52060021AF for the same application. It also cross-references Dorman OE Solutions 521-119 for the same application.

What It Helps Address

• Rear suspension looseness or excess movement
• Clunking or knocking from worn control arm bushings
• Uneven rear axle location after suspension wear
• Restoration of rear lower suspension mounting integrity
• Replacement of a bent, rusted, or fatigued control arm

Installation Notes and Tips

Install in the rear lower position only. This control arm includes bushings, but it does not include a ball joint, mounting hardware, or a grease fitting. Because suspension components affect alignment and ride height, verify fastener condition, inspect adjacent bushings and mounts, and confirm final torque with the vehicle at normal ride position. Fitment includes 2007-2017 Jeep Wrangler, rear lower, and 2018 Jeep Wrangler JK, rear lower.

Quality Assurance

Moog premium control arms for foreign and domestic nameplates are engineered with structural strength and corrosion protection in mind. RK641777 is built as a replacement suspension control arm for Jeep Wrangler and Wrangler JK rear lower applications, with materials and construction selected for service durability.