Dorman 13643 Keyless Entry Transmitter Cover

Keyless Entry Transmitter Cover for GM

Restore the appearance of a worn or cracked key fob case with this Dorman keyless entry transmitter cover. It is a direct replacement-style cover for GM 3-button remotes and is built to refresh the exterior without changing the transmitter’s core functions.

• Brand: Dorman Part Number 13643
• Black finish for a clean OE-style look
• Constructed from metal, plastic, and rubber materials
• 3-button layout for Lock, Unlock, and Panic functions
• Includes case front, case back, rubber keypad, and battery contact
• Battery not included

Detailed Product Overview

Dorman 13643 is a keyless entry transmitter cover for GM applications where the original fob shell is cracked, worn, or cosmetically damaged. It is designed for GM 3-button remotes and helps restore the exterior of the transmitter while maintaining the existing button layout for Lock, Unlock, and Panic. This cover is a practical choice for drivers looking for a replacement shell for Chevrolet Colorado, GMC Canyon, and other listed GM vehicles.

This part cross-references OE-style part numbers 10335583 and CP048D for the same application. The Dorman 13643 cover is also listed for Hummer H3 and H3T, plus Pontiac Montana and Oldsmobile Silhouette applications with the specified factory equipment.

What It Helps Fix

• Cracked or broken key fob housing
• Worn buttons or faded exterior appearance
• Loose or damaged transmitter shell components
• Cosmetic damage from daily use and handling
• Need for a replacement GM remote case without changing button functions

Fitment and Compatibility

• Fits 2004-2012 Chevrolet Colorado, N/A, 3 Button; Color: Black
• Fits 2004-2012 GMC Canyon, N/A, 3 Button; Color: Black
• Fits 2006-2010 Hummer H3, N/A, 3 Button; Color: Black
• Fits 2009-2010 Hummer H3T, N/A, 3 Button; Color: Black
• Fits 2001-2005 Pontiac Montana, N/A, wo/Power Sliding Doors; w/RPO Code UA6 (Anti-Theft Package); Color: Black
• Fits 2001-2004 Oldsmobile Silhouette, N/A, wo/Power Sliding Doors; w/RPO Code UA6 (Anti-Theft Package); Color: Black

Installation Notes

Transfer the existing electronics into the new cover and confirm the button layout matches the original transmitter before assembly. Verify GM remote style, 3-button configuration, and any vehicle-specific notes such as anti-theft package or power sliding door requirements before ordering. The battery is not included, so reuse the existing battery if serviceable or replace it separately as needed.

Quality Assurance

Dorman manufactures replacement parts for direct-fit repair needs, and this transmitter cover is built to restore the look and function of the original GM key fob housing. Part number 13643 is specified for the listed Chevrolet Colorado, GMC Canyon, Hummer H3, Hummer H3T, Pontiac Montana, and Oldsmobile Silhouette applications.