Dorman 25860 Door Window Seal - Front Left Outer

Door Window Seal for OE-Style Weather Protection

Dorman 25860 is a specific-fit door window seal for the front left outer position on select Chevrolet and GMC trucks and SUVs. It replaces cracked or torn window weather stripping to help keep out wind, moisture, and road debris.

Built from black felt with a snap-on attachment style, this door window seal follows the original application for a clean, direct replacement on the driver-side front outer window area.

Key Features

• Specific-fit door window seal for the front left outer position
• Black felt construction for OE-style sealing performance
• Snap-on attachment for direct replacement installation
• Non-adhesive design
• Length: 33.37 in; width: 1.75 in; thickness: 0.87 in
• Fits 2000-2006 Chevrolet Silverado 1500, front left outer
• Fits 2000-2006 GMC Sierra 1500, front left outer

Detailed Description

This Dorman door window seal, part number 25860, is made for vehicles with worn or damaged outer window weather stripping. It is a specific-fit replacement that installs in the front left outer position and is shaped to match the original sealing profile. For owners searching for a 2000-2006 Chevrolet Silverado 1500 front left outer window seal or a 2000-2006 GMC Sierra 1500 front left outer door window seal, this part provides a direct service replacement. This part cross-references 15104014 for the same application.

What It Helps Fix

• Cracked or torn door window weather stripping
• Wind noise around the front left outer window
• Water intrusion at the door glass edge
• Dust and debris entering through worn sealing surfaces
• Reduced sealing performance from age and wear

Installation Notes and Tips

Verify the front left outer position before installation. The snap-on, non-adhesive design is intended for direct replacement on the specified vehicles, so confirm the original profile and mounting style match Dorman 25860. Clean the mounting area before installing the new seal to help ensure proper seating along the window channel.

Quality Assurance

Dorman designs replacement body sealing components to match the original application requirements for specific vehicles. Part number 25860 is built for confirmed fitment across 2000-2007 Chevrolet Silverado and GMC Sierra applications, along with select Cadillac, Chevrolet Avalanche, Suburban, Tahoe, and Yukon models in the front left outer position.