Dorman IB90086RD Steering Idler Arm Bracket

Dorman RD Rugged Duty Steering Idler Arm Bracket

The Dorman RD - Rugged Duty steering idler arm bracket is built for heavy-duty steering support on full-size GM trucks and SUVs. Part number IB90086RD is engineered for applications such as Chevrolet Silverado 1500, Silverado 2500 HD, GMC Sierra 2500 HD, Tahoe, Yukon, and Hummer H2, with fitment spanning 1999-2025 depending on model.

This rugged duty design focuses on load absorption, corrosion resistance, and serviceability. It uses a steel bracket with a gray phosphate coated finish, a hardened ball stud with a polished ball surface, an integrated serviceable bearing, pre-greased construction, and a dust boot for added protection.

Key Features

• Steel steering idler arm bracket with coated gray phosphate finish
• Hardened ball stud with polished ball for smooth steering movement
• Integrated serviceable bearing for maintenance-friendly operation
• Pre-greased with I.C.E. synthetic grease
• Dust boot included for added contamination protection
• Castle nut included for the arm attachment
• Two mounting holes and bracket-style frame attachment
• Fits GM vans, pickups, SUVs, and HD chassis applications

Detailed Description

Dorman IB90086RD is part of the RD - Rugged Duty line, a product line focused on steering and chassis components built for demanding service conditions. This idler arm bracket is designed to handle higher steering loads while maintaining stable support at the frame mount. The steel construction, premium corrosion resistance, and serviceable bearing help support long-term use in work-truck and heavy-duty SUV applications.

Compatible With 1999-2025 Chevrolet Express 2500 and Express 3500, 1999-2010 Chevrolet Silverado 1500, 2001-2010 Silverado 2500 HD, 2007-2010 Silverado 3500 HD, 2000-2006 Chevrolet Tahoe, 2000-2006 GMC Yukon, 2001-2010 GMC Sierra 2500 HD, and 2003-2009 Hummer H2. This part cross-references MOOG Chassis Products K6723 for the same application.

What It Helps Address

• Loose or unstable steering feel from a worn idler arm bracket
• Excess play in the steering linkage at the frame mount
• Corrosion-related bracket wear on high-mileage GM trucks and SUVs
• Grease retention issues in serviceable steering components
• Steering support concerns on heavy-duty and commercial-use vehicles

Installation Notes and Tips

Verify vehicle year, make, model, and steering configuration before installation. This bracket uses a 14 mm mounting hole size and a 16 mm tapered arm attachment thread diameter with M2.0 thread pitch. The included grease hose kit is noted in the fitment data for applicable vehicles, and the pre-greased design helps simplify initial setup. Always torque fasteners to the vehicle manufacturer’s specifications and inspect the steering linkage after installation.

Quality Assurance

Dorman RD - Rugged Duty components are built for durability-focused steering service, with corrosion-resistant coating, a hardened ball stud, and a serviceable bearing design intended for demanding use. Part number IB90086RD is manufactured to support consistent fit and function across the listed GM applications.