Dorman 686-405 Steering Knuckle - Front Left

Dorman 686-405 Steering Knuckle for Transit

Dorman 686-405 is a steel steering knuckle engineered as a direct replacement for the original front left knuckle on select Ford Transit vans. It is built for 2015-2019 Ford Transit-150, Transit-250, and Transit-350 applications, including Transit-350 models with Single Rear Wheel (SRW).

Key Features

• Precision-engineered steering knuckle for front left suspension service
• Steel, cast construction for strength and dimensional consistency
• Black, silver, and plated finish details as supplied
• Sensor hole diameter: 10 mm
• Caliper mounting: 2 holes with 16 mm diameter
• Standard replacement grade for OE-style service
• Fits 2015-2019 Ford Transit-150, front left
• Fits 2015-2019 Ford Transit-250, front left
• Fits 2015-2019 Ford Transit-350, front left, w/Single Rear Wheel (SRW)

Detailed Description

This Dorman steering knuckle, part number 686-405, is designed for front left suspension replacement on Ford Transit vans from 2015 through 2019. Built from steel with a cast construction, it provides the structural interface for the wheel hub, brake caliper mounting, and steering linkage geometry on the specified Transit-150, Transit-250, and Transit-350 configurations. The part number 686-405 is a practical OE-style solution when the original knuckle is worn, damaged, or no longer serviceable.

For buyers searching for a Ford Transit front left steering knuckle, Dorman 686-405 matches the listed vehicle applications and supports service on Transit-350 models with SRW. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Part Can Address

• Cracked or bent steering knuckle from impact damage
• Excessive play or alignment issues related to knuckle wear
• Brake caliper mounting damage at the steering knuckle
• Sensor mounting concerns at the knuckle location
• Replacement needs after corrosion or structural fatigue

Installation Notes and Tips

Verify front left fitment before installation and confirm the vehicle is a 2015-2019 Ford Transit-150, Transit-250, or Transit-350 with SRW where applicable. Transfer or inspect related suspension and brake components during service, and check alignment after installation. Mounting hardware and instructions are not included.

Quality Assurance

Dorman manufactures this steering knuckle as a tested replacement part for the original component on the listed Ford Transit applications. Its standard replacement grade and application-specific engineering support consistent fit and serviceability for front left suspension repair.