Dorman 77101 Tailgate Lock

Dorman 77101 Tailgate Lock for Select GM SUVs

Dorman 77101 is a keyed tailgate lock built to match the fit and function of the original lock on select Chevrolet, GMC, and Oldsmobile vehicles. It uses a metal lock cylinder with a black finish for durable, reliable operation on the liftgate.

Key Features

• Direct replacement tailgate lock for specified applications
• Metal construction for dependable wear resistance
• Black finish for an OE-style appearance
• Keyed-only actuation with included keys
• Single lock cylinder design
• Designed for 1985-1994 Chevrolet S10 Blazer liftgate lock kit applications
• Designed for 1992-1994 GMC Jimmy liftgate lock kit applications
• Designed for 1991-1994 Oldsmobile Bravada liftgate lock kit applications
• Designed for 1985-1991 GMC S15 Jimmy liftgate lock kit applications

Detailed Description

This Dorman tailgate lock, part number 77101, is engineered as a replacement for the original liftgate lock on select GM SUVs. It is built with a metal lock cylinder and keyed operation, and it includes the lock cylinder and keys needed for service. The design focuses on matching original fit and function for vehicles such as the Chevrolet S10 Blazer, GMC Jimmy, Oldsmobile Bravada, and GMC S15 Jimmy. This part cross-references OE number 12498270 for the same application.

Common Problems It Can Help Address

• Worn or sticking liftgate lock cylinder
• Broken or damaged tailgate lock mechanism
• Key that no longer turns smoothly in the lock
• Loss of secure liftgate access on older GM SUVs
• Need for a direct replacement lock on a service repair

Installation Notes and Tips

Installation instructions are not included. Verify vehicle application before installation and compare the original lock cylinder and key style to confirm a proper match. Mounting hardware is not included, so reuse existing hardware when serviceable or source the required hardware separately. This part uses keyed-only actuation and does not include keyless entry or wiring harness components.

Quality Assurance

Dorman designs this replacement lock to match original fit and function while supporting durable, reliable performance in everyday use. Part number 77101 is intended for service on the listed GM liftgate lock kit applications and is built as a straightforward OE-style replacement.