Dorman 425-000 Steering Coupling Boot - Lower

Dorman 425-000 Steering Coupling Boot

Dorman 425-000 is a steering coupling boot for lower steering applications on select Cadillac, Chevrolet, and GMC trucks and SUVs. It is made from rubber/elastomer material and is shaped to match the original boot on vehicles where the factory part has torn or deteriorated from exposure.

Key Features

• Rubber construction for steering system sealing and protection
• Black finish for OE-style appearance
• Designed to retain lubricant inside the steering coupling area
• Helps block dirt, moisture, and road contamination
• Mounting hardware included
• Direct replacement for select lower steering applications

Detailed Description

This steering coupling boot is built for lower steering service on 2007-2020 Cadillac Escalade, 2007-2020 Cadillac Escalade ESV, 2007-2020 Chevrolet Silverado 1500, 2007-2020 Chevrolet Tahoe, 2007-2020 GMC Sierra 1500, 2007-2020 GMC Yukon, and 2015-2020 GMC Yukon XL applications, with additional coverage for related Escalade, Suburban, Avalanche, and Yukon XL models. Dorman 425-000 is engineered to match the fit of the original boot so the steering system stays sealed and protected after the factory part has cracked, torn, or worn out. This part cross-references GM OE numbers 19177403 and 19210226 for the same application.

What It Helps Fix

• Split or torn steering coupling boot material
• Loss of lubricant from the steering coupling area
• Contamination from dirt, water, and road debris
• Noise or roughness caused by exposed steering components
• Wear from age and weather exposure on lower steering boots

Installation Notes and Tips

Install on the lower steering position only. Inspect the steering coupling area for damage, contamination, or worn components before installation. Clean the surrounding area thoroughly so the new boot can seal properly. Verify vehicle application by year, make, model, and position before service. Dorman 425-000 is listed for 2007-2020 Cadillac Escalade, 2007-2020 Chevrolet Silverado 1500, and 2007-2020 GMC Sierra 1500 lower steering applications.

Quality Assurance

Dorman designs this boot as an OE-style replacement for specified vehicles, with fit and function intended to match the original part on the listed applications. The rubber construction and included mounting hardware support a secure service replacement for the steering coupling area.