Dorman 38642 Tailgate Hinge Kit - Left or Right

Tailgate Hinge Kit for OE-Style Alignment

Dorman 38642 is a specific-fit tailgate hinge kit for restoring proper tailgate alignment and function on select Chevrolet, GMC, and Hummer applications. Built with metal components and a bolt-on attachment method, it addresses worn hinge points that can leave the tailgate sagging, misaligned, or difficult to operate.

Compatible With 1999-2007 Chevrolet Silverado and GMC Sierra models, plus select Hummer H1, H2, and H3 applications, this Dorman 38642 replacement is engineered to match the original hinge layout for direct service on the tailgate or body mounting points.

Key Features

• Specific-fit tailgate hinge kit for targeted vehicle applications
• Metal construction for durable service in tailgate mounting locations
• Bolt-on attachment method for OE-style replacement
• Designed to restore tailgate alignment and opening/closing function
• Matches original part requirements for the listed vehicles
• Fits body-side or tailgate-side mounting locations, depending on application

Detailed Description

Dorman 38642 is a replacement tailgate hinge kit engineered for vehicles that use a factory-style hinge setup. The metal hinge design and OE-matching fit help restore the connection between the tailgate and body, which is critical for proper latch engagement and smooth movement. This part number 38642 is listed for a wide range of Chevrolet Silverado, GMC Sierra, and Hummer models, including 1999-2007 Silverado and Sierra coverage and select 2005-2006 Hummer H2 and 2006 Hummer H3 applications. This part cross-references GM 15074252 for the same application.

What It Helps Fix

• Tailgate sagging or uneven alignment
• Loose or worn hinge pivot points
• Tailgate binding during opening or closing
• Poor latch engagement caused by hinge wear
• Excess movement at the tailgate mounting area

Installation Notes and Tips

Install using the vehicle’s existing bolt-on mounting points and verify the hinge orientation before tightening fasteners. Because fitment varies by model and position, confirm whether your application mounts on the tailgate or body before installation. For 2005-2006 Chevrolet Silverado 2500 and GMC Sierra 2500 applications, the catalog lists separate left and right positions; other listed vehicles use the specified OE-style mounting arrangement. Always compare the original hinge location and hardware layout to the replacement part before service.

Quality Assurance

Dorman designs this hinge kit to match the original parts required for restoring tailgate alignment and function. The part is built from quality components for reliable performance and durability in daily use.