Dorman 686-420 Suspension Knuckle Kit - Rear Right

Dorman 686-420 Loaded Knuckle Overview

The Dorman 686-420 suspension knuckle kit is a rear right loaded knuckle assembly for select Dodge Durango and Jeep Grand Cherokee applications. It brings together the critical components needed for a faster, simpler wheel-end repair, helping eliminate the need to press in a worn bearing separately.

Built as a standard replacement in steel with a black finish, this loaded knuckle includes the hub and ball joint already assembled for service on the rear right side. It is a practical OE-style solution for drivers and technicians working on 2016-2024 Dodge Durango, 2016-2021 Jeep Grand Cherokee, and 2022 Jeep Grand Cherokee WK models.

Key Features

• Loaded knuckle assembly for rear right suspension service
• OE FIX design reduces the need for hydraulic press work
• Hub included and preassembled for a streamlined repair
• Ball joint included for a more complete wheel-end solution
• Steel construction with black finish
• Standard replacement grade for select Dodge Durango and Jeep Grand Cherokee applications
• Part number 686-420 for easy identification

Detailed Product Description

Dorman 686-420 is engineered for rear right suspension repair where a worn wheel bearing or related wheel-end component would normally require multiple parts and specialized pressing equipment. By supplying the knuckle with the hub and ball joint already assembled, this kit simplifies the repair process and helps reduce labor time during service. The assembly measures 290.8 in length, 280 in width, with an inside diameter of 96.2 and outside diameter of 113.5, and uses a 5-hole mounting pattern with 12.3 mounting hole diameter. The bearing generation is Gen 1, and the package contents include the loaded knuckle, axle nut, and ball joint nut. If you are sourcing a rear right suspension knuckle kit for a Dodge Durango or Jeep Grand Cherokee, part number 686-420 is a direct-fit option for the listed vehicles.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Repair Uses

• Rear wheel bearing noise or roughness
• Excessive play in the rear wheel-end assembly
• Damaged or worn rear right knuckle components
• Time-consuming press-in bearing replacement jobs
• Service work on Dodge Durango and Jeep Grand Cherokee rear suspension

Installation Notes and Tips

Fits 2016-2024 Dodge Durango, rear right. Fits 2016-2021 Jeep Grand Cherokee, rear right. Fits 2022 Jeep Grand Cherokee WK, rear right. Verify the rear right application, mounting pattern, and axle interface before installation. Because this assembly includes critical preassembled components, follow factory service procedures for torque values and alignment checks after repair. Part number 686-420 should be matched to the vehicle by year, make, model, and position before ordering.

Quality Assurance

Dorman supplies this loaded knuckle as an OE FIX-style replacement intended to simplify service while maintaining standard replacement fit and function for the listed applications. The steel construction and assembled wheel-end components support a repair-focused solution for compatible Dodge Durango and Jeep Grand Cherokee models.