Dorman 686-415 Steering Knuckle - Front Left

Dorman 686-415 Steering Knuckle for Civic

Dorman 686-415 is a steel steering knuckle engineered as a standard replacement for the original front left knuckle on select Honda Civic models. It is built for 2016-2021 Honda Civic front left applications and is designed to restore proper steering and suspension geometry after knuckle damage or wear.

Key Features

• Direct replacement steering knuckle for select Honda Civic front left applications
• Steel construction with cast design for structural strength
• Black and natural finish options listed in product data
• Sensor hole diameter: 10 mm
• Caliper mounting: 2 holes with 12 mm diameter
• Standard replacement grade
• Part number 686-415

Product Details

This Dorman steering knuckle is precision-engineered and tested to replace the original knuckle on specific vehicles. It is listed for 2016-2021 Honda Civic, front left, and is a practical choice when the original knuckle is bent, cracked, or otherwise no longer holding alignment and suspension components correctly. The Dorman 686-415 helps maintain the correct mounting points for the hub, brake caliper, and steering/suspension interfaces on the Civic platform.

This part cross-references OE number 51216TBAA03 for the same application.

What It Helps Address

• Front-end damage affecting steering knuckle alignment
• Cracked or bent knuckle housing after impact
• Brake caliper mounting issues caused by worn mounting points
• Suspension geometry problems tied to a damaged knuckle
• Sensor mounting concerns where the original knuckle is no longer serviceable

Installation Notes

Verify vehicle fitment by year, make, model, and front left position before installation. Transfer or inspect related components such as the hub, axle interface, brake components, and sensors as needed, since mounting hardware and instructions are not included. Confirm all mounting surfaces are clean and that caliper and sensor openings match the vehicle configuration before final assembly.

Quality Assurance

Dorman manufactures this steering knuckle as a tested replacement part for specific vehicle applications. The cast steel construction and application-specific dimensions support consistent fitment on 2016-2021 Honda Civic front left models. Part number 686-415 is built to standard replacement specifications for service repair use.