
Dorman IA90289RD Steering Idler Arm and Bracket Assembly
Dorman RD Steering Idler Arm Assembly
The Dorman RD - Rugged Duty IA90289RD steering idler arm and bracket assembly is built for direct replacement on heavy-duty Chevrolet Silverado and GMC Sierra applications. It matches original fit and function to help restore stable steering response, including on 2011-2025 Chevrolet Silverado 2500 HD and Silverado 3500 HD models, as well as 2011-2025 GMC Sierra 2500 HD and Sierra 3500 HD trucks.
Key Features
- Direct replacement steering idler arm and bracket assembly for select Chevrolet Silverado and GMC Sierra trucks
- Steel construction with a coated black finish for corrosion resistance
- Pre-greased design with grease fitting included for serviceability
- Tapered arm attachment for OE-style steering linkage connection
- Castle nut, cotter pin, ball joint, and bracket stud included in the assembly
- Standard replacement grade for restoring steering geometry and linkage support
Detailed Description
Built for heavy-duty steering systems, the Dorman RD IA90289RD is engineered to match the fit, function, and performance of the original idler arm assembly. It is a practical replacement for worn steering linkage components on Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD trucks, with additional coverage for 2011-2018 Silverado 2500 and 2011-2013 and 2015-2018 Silverado 3500 applications. The steel body, bent shape, and coated finish support long-term durability, while the pre-greased design helps simplify maintenance. This part cross-references MOOG Chassis Products K400018 and Delphi TA5584 for the same application. The IA90289RD part number is also useful when searching for a direct-fit steering idler arm and bracket assembly for HD truck steering repair.
Common Steering Issues It Can Address
- Excessive steering play or looseness in the front steering linkage
- Uneven or wandering steering feel during highway driving
- Clunking or movement from a worn idler arm assembly
- Reduced steering stability caused by worn bracket support
- Service issues related to a damaged or dry steering pivot point
Installation Notes and Tips
Verify vehicle year, make, and model before installation. This assembly uses a tapered arm attachment and a 16 mm arm stud thread diameter, with a 20 mm bracket stud thread diameter and a 20.45 mm mounting hole diameter. The IA90289RD is a direct-fit steering replacement for the listed Chevrolet Silverado and GMC Sierra applications, and the included grease fitting supports routine lubrication after installation.
Quality Assurance
Dorman RD - Rugged Duty focuses on replacement parts built to match original fit and function for demanding truck applications. IA90289RD is a standard replacement steering idler arm and bracket assembly designed for specific Chevrolet Silverado and GMC Sierra HD fitments.
Dorman IA90289RD Steering Idler Arm and Bracket Assembly
Dorman RD Steering Idler Arm Assembly
The Dorman RD - Rugged Duty IA90289RD steering idler arm and bracket assembly is built for direct replacement on heavy-duty Chevrolet Silverado and GMC Sierra applications. It matches original fit and function to help restore stable steering response, including on 2011-2025 Chevrolet Silverado 2500 HD and Silverado 3500 HD models, as well as 2011-2025 GMC Sierra 2500 HD and Sierra 3500 HD trucks.
Key Features
- Direct replacement steering idler arm and bracket assembly for select Chevrolet Silverado and GMC Sierra trucks
- Steel construction with a coated black finish for corrosion resistance
- Pre-greased design with grease fitting included for serviceability
- Tapered arm attachment for OE-style steering linkage connection
- Castle nut, cotter pin, ball joint, and bracket stud included in the assembly
- Standard replacement grade for restoring steering geometry and linkage support
Detailed Description
Built for heavy-duty steering systems, the Dorman RD IA90289RD is engineered to match the fit, function, and performance of the original idler arm assembly. It is a practical replacement for worn steering linkage components on Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD trucks, with additional coverage for 2011-2018 Silverado 2500 and 2011-2013 and 2015-2018 Silverado 3500 applications. The steel body, bent shape, and coated finish support long-term durability, while the pre-greased design helps simplify maintenance. This part cross-references MOOG Chassis Products K400018 and Delphi TA5584 for the same application. The IA90289RD part number is also useful when searching for a direct-fit steering idler arm and bracket assembly for HD truck steering repair.
Common Steering Issues It Can Address
- Excessive steering play or looseness in the front steering linkage
- Uneven or wandering steering feel during highway driving
- Clunking or movement from a worn idler arm assembly
- Reduced steering stability caused by worn bracket support
- Service issues related to a damaged or dry steering pivot point
Installation Notes and Tips
Verify vehicle year, make, and model before installation. This assembly uses a tapered arm attachment and a 16 mm arm stud thread diameter, with a 20 mm bracket stud thread diameter and a 20.45 mm mounting hole diameter. The IA90289RD is a direct-fit steering replacement for the listed Chevrolet Silverado and GMC Sierra applications, and the included grease fitting supports routine lubrication after installation.
Quality Assurance
Dorman RD - Rugged Duty focuses on replacement parts built to match original fit and function for demanding truck applications. IA90289RD is a standard replacement steering idler arm and bracket assembly designed for specific Chevrolet Silverado and GMC Sierra HD fitments.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Dorman RD Steering Idler Arm Assembly
The Dorman RD - Rugged Duty IA90289RD steering idler arm and bracket assembly is built for direct replacement on heavy-duty Chevrolet Silverado and GMC Sierra applications. It matches original fit and function to help restore stable steering response, including on 2011-2025 Chevrolet Silverado 2500 HD and Silverado 3500 HD models, as well as 2011-2025 GMC Sierra 2500 HD and Sierra 3500 HD trucks.
Key Features
- Direct replacement steering idler arm and bracket assembly for select Chevrolet Silverado and GMC Sierra trucks
- Steel construction with a coated black finish for corrosion resistance
- Pre-greased design with grease fitting included for serviceability
- Tapered arm attachment for OE-style steering linkage connection
- Castle nut, cotter pin, ball joint, and bracket stud included in the assembly
- Standard replacement grade for restoring steering geometry and linkage support
Detailed Description
Built for heavy-duty steering systems, the Dorman RD IA90289RD is engineered to match the fit, function, and performance of the original idler arm assembly. It is a practical replacement for worn steering linkage components on Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD trucks, with additional coverage for 2011-2018 Silverado 2500 and 2011-2013 and 2015-2018 Silverado 3500 applications. The steel body, bent shape, and coated finish support long-term durability, while the pre-greased design helps simplify maintenance. This part cross-references MOOG Chassis Products K400018 and Delphi TA5584 for the same application. The IA90289RD part number is also useful when searching for a direct-fit steering idler arm and bracket assembly for HD truck steering repair.
Common Steering Issues It Can Address
- Excessive steering play or looseness in the front steering linkage
- Uneven or wandering steering feel during highway driving
- Clunking or movement from a worn idler arm assembly
- Reduced steering stability caused by worn bracket support
- Service issues related to a damaged or dry steering pivot point
Installation Notes and Tips
Verify vehicle year, make, and model before installation. This assembly uses a tapered arm attachment and a 16 mm arm stud thread diameter, with a 20 mm bracket stud thread diameter and a 20.45 mm mounting hole diameter. The IA90289RD is a direct-fit steering replacement for the listed Chevrolet Silverado and GMC Sierra applications, and the included grease fitting supports routine lubrication after installation.
Quality Assurance
Dorman RD - Rugged Duty focuses on replacement parts built to match original fit and function for demanding truck applications. IA90289RD is a standard replacement steering idler arm and bracket assembly designed for specific Chevrolet Silverado and GMC Sierra HD fitments.












