Rear Left Loaded Knuckle for Explorer

Dorman 686-277 is a loaded rear left steering knuckle assembly for select Ford Explorer SUVs. It is built for direct replacement service on 2011-2019 Ford Explorer rear left applications, including 2013-2019 models with a solid brake rotor.

This OE FIX design addresses a common service problem where corrosion can seize the wheel hub assembly to the steering knuckle. The pre-assembled layout helps reduce teardown time, and the proprietary coating is engineered to resist corrosion between mating surfaces for a more durable repair. Dorman 686-277 includes the rear left knuckle, wheel bearing, hub, and application-specific hardware already assembled.

• Fits 2011 Ford Explorer, rear left
• Fits 2012 Ford Explorer, rear left
• Fits 2013-2019 Ford Explorer, rear left, w/Solid Brake Rotor
• Loaded steering knuckle assembly for rear left service
• Pre-assembled with hub and wheel bearing installed
• Patent-pending corrosion-resistant coating on mating surfaces
• Aluminum construction with black and natural finish details
• Standard replacement grade for direct repair work

Detailed Product Overview

Built for the rear left side of the Ford Explorer, part number 686-277 is intended for vehicles where rust has caused the hub and knuckle to seize together. By supplying the knuckle, hub, and bearing as a loaded assembly, this Dorman OE FIX solution helps simplify replacement and supports a cleaner repair when the original knuckle is difficult to salvage. The design is especially relevant for Salt Belt vehicles, but it also addresses corrosion-related service issues that can develop over time in normal use. This part cross-references MOOG Hub Assemblies (e.g., LK139) for the same application.

Common Repair Uses

• Seized wheel hub and steering knuckle surfaces
• Corrosion damage on the rear left knuckle area
• Excessive labor during hub or knuckle replacement
• Worn rear wheel bearing and hub service on Explorer SUVs
• Replacement after knuckle salvage is no longer practical

Installation Notes

Verify rear left fitment by year and brake configuration before installation. Inspect surrounding suspension and brake components for corrosion or wear, and confirm all mounting points are clean before assembly. Because this is a loaded knuckle, it is suited to faster service than rebuilding the knuckle, hub, and bearing separately.

Quality Assurance

Dorman engineers this OE FIX knuckle assembly to improve corrosion resistance at the hub-to-knuckle interface and to provide a more permanent repair approach than the original factory design.