Moog K400020 Steering Idler Arm Bracket

Moog K400020 Steering Idler Arm Bracket

The Moog K400020 steering idler arm bracket is built for direct replacement on select heavy-duty GM trucks. It is engineered with design enhancements that help simplify installation and replacement while supporting longer service life in steering system applications.

Key Features

• Steering idler arm bracket for chassis steering service
• Direct-fit replacement for select Chevrolet Silverado 2500 HD and Silverado 3500 HD models
• Direct-fit replacement for select GMC Sierra 2500 HD and Sierra 3500 HD models
• Bracket pivot assembly design allows easier installation
• Moog part number K400020 for application-specific lookup

Detailed Description

Moog K400020 is a steering idler arm bracket made for 2011-2017 Chevrolet Silverado 2500 HD, 2011-2017 Chevrolet Silverado 3500 HD, 2011-2017 GMC Sierra 2500 HD, and 2011-2017 GMC Sierra 3500 HD applications. This bracket supports the steering linkage at the idler arm pivot point, helping maintain proper steering geometry in heavy-duty truck chassis systems. Moog focuses on design updates that improve service life and make replacement easier, which is especially important on work trucks that see frequent steering load and road stress. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Repair Uses

• Worn or damaged idler arm bracket replacement on GM HD trucks
• Steering looseness related to pivot bracket wear
• Service repair for steering linkage support issues
• Restoration of steering response on Silverado 2500 HD and Sierra 3500 HD platforms
• Replacement for a bracket pivot assembly during front-end steering service

Installation Notes and Tips

Verify vehicle year, make, and model before ordering. Confirm the steering bracket configuration matches the original part on the truck, especially on 2011-2017 Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD applications. Inspect related steering linkage components during installation so worn parts are not left in the system. The bracket pivot assembly design is intended to make replacement easier, but proper alignment and torque procedures should still be followed during service.

Quality Assurance

Moog is known in the chassis category for ongoing design improvements that focus on durability and easier serviceability. Part number K400020 is built for the listed GM heavy-duty truck applications and is backed by Moog’s product development approach for steering and suspension replacement parts.