Dorman 686-323 Suspension Knuckle - Rear Left

Dorman 686-323 Rear Left Suspension Knuckle

Dorman 686-323 is a steel suspension knuckle engineered as a direct replacement for the original rear left knuckle on select Jeep and Fiat vehicles. It is built for the 2015-2023 Jeep Renegade, 2016-2023 Fiat 500X, and 2017-2024 Jeep Compass, with fitment matched to the rear left position.

Key Features

• Steel construction for suspension strength and durability
• Precision-engineered replacement for the original knuckle
• Rear left application for specific Jeep Compass, Fiat 500X, and Jeep Renegade models
• Black/natural housing finish
• Standard-grade replacement part
• Mounting hole quantity: 12
• Mounting hole diameter: 12.3 mm
• Inside diameter: 84.1 mm
• Dimensions: 335 mm length, 170 mm width

Detailed Description

This Dorman suspension knuckle, part number 686-323, is designed to replace the original rear left knuckle on select compact SUV applications. It is made from steel and tested for reliable fit and function, making it a practical choice for Jeep Compass rear left suspension repair, Fiat 500X rear left knuckle replacement, and Jeep Renegade rear left suspension service. The knuckle is supplied without a hub, bearing, or ball joint, so existing service parts can be transferred or replaced as needed during the repair. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Repair

• Worn or damaged rear left suspension knuckle
• Suspension geometry issues caused by knuckle wear or impact damage
• Noise or looseness at the rear suspension assembly
• Service needs after collision or curb impact damage
• Replacement of a failed OE-style knuckle on Jeep Compass, Fiat 500X, or Jeep Renegade

Installation Notes and Tips

Verify rear left fitment before installation on the Jeep Compass, Fiat 500X, or Jeep Renegade. Inspect related suspension components, fasteners, hub, bearing, and ball joint condition during service, since this knuckle does not include those parts. Confirm mounting hole alignment and torque all hardware to the vehicle manufacturer’s specifications.

Quality Assurance

Dorman designs this suspension knuckle as a precision-engineered replacement and subjects it to rigorous testing to support dependable service on the listed applications. Part number 686-323 is built to match the original knuckle’s role in the rear suspension assembly.