Dorman 686-431 Steering Knuckle Kit - Front Left

Dorman 686-431 Loaded Knuckle for Civic

Dorman 686-431 is a loaded steering knuckle kit for the front left position on select Honda Civic models. It brings together the hub, bearing, and dust shield in one OE FIX assembly, reducing the need for a press-based bearing service and simplifying a repair that is often time-consuming.

Fits 2016-2021 Honda Civic, front left. This Dorman steering knuckle kit is built for direct replacement service on driven front suspension applications and is a practical option for Honda Civic front left wheel bearing and knuckle repairs.

• OE FIX loaded knuckle assembly for faster service
• Includes hub, bearing, and dust shield already assembled
• Standard replacement grade for direct-fit repair work
• Encoder-style ABS configuration
• Ball bearing design with Gen 1 bearing generation
• 5-lug wheel pattern with M12x1.5 wheel stud thread pitch
• Front left fitment for select Honda Civic applications

Detailed Product Overview

Part number 686-431 is engineered for 2016-2021 Honda Civic front left applications where the original knuckle and bearing assembly has worn or failed. Instead of separating components and using a hydraulic press, this loaded knuckle arrives with the critical service parts already assembled, helping streamline the repair process and reduce downtime in the bay. The assembly is a standard replacement solution for driven front suspension service and is suited to vehicles using an encoder-type ABS setup.

This part cross-references Honda OE numbers 44300TBCA01 and 44600TBCA00 for the same application.

Common Repair Issues

• Wheel bearing noise from the front left corner
• Excessive play or looseness at the wheel hub
• ABS encoder-related wheel speed signal concerns
• Damaged or worn steering knuckle assembly
• Corrosion or wear affecting hub and bearing serviceability

Installation Notes and Tips

Verify front left fitment before installation and confirm the vehicle uses the correct encoder-style ABS configuration. Inspect surrounding suspension and brake components for wear, and transfer only the components required by the vehicle service procedure. Because this assembly is preloaded, it helps eliminate the press work normally associated with bearing replacement.

Quality Assurance

Dorman OE FIX parts are built to simplify repairs by combining critical components into a service-ready assembly. Part number 686-431 is a standard replacement steering knuckle kit for select Honda Civic models, with OE-style fitment and application-specific construction.