Dorman 99166ST Keyless Entry Transmitter

Dorman 99166ST Keyless Entry Transmitter

The Dorman 99166ST keyless entry transmitter is a black 4-button remote built to match the look and function of the original key fob on select Ford and Mercury vehicles. It is a standard replacement remote with batteries included and requires programming with a compatible scan tool by a qualified professional.

Key Features

• Black keyless entry transmitter with 4 buttons
• Designed to match original remote appearance and operation
• Batteries included
• Programming required for vehicle pairing
• Standard replacement grade
• Electronic chip included
• Length: 3.59 in.

Detailed Description

Dorman 99166ST is a replacement keyless entry remote for drivers needing a spare or a direct-style substitute for the factory fob. It is engineered for select Ford Expedition, Ford Flex, Ford Explorer, Ford Edge, Ford Escape, Ford Fusion, and Mercury Sable applications, including 2015-2017 Ford Expedition, 2009-2017 Ford Flex, 2011-2015 Ford Explorer, 2007-2014 Ford Edge, 2007-2012 Ford Escape, 2006-2012 Ford Fusion, and 2008-2009 Mercury Sable. This part number, 99166ST, is intended for vehicles without remote start, and the Mercury Sable listing notes use without dongle.

This part cross-references BT4Z15K601L for the same application.

What It Helps Solve

• Lost or damaged factory keyless entry remote
• Worn buttons or a cracked remote housing
• Need for a spare transmitter for daily use
• Restoring remote lock and unlock functions after replacement
• Replacing a nonresponsive transmitter on supported Ford and Mercury models

Installation Notes and Tips

Programming is required and must be completed with a compatible scan tool to pair the transmitter to the vehicle. Professional setup is recommended to ensure proper communication with the vehicle’s anti-theft and remote entry system. Verify the vehicle is listed without remote start before ordering, and confirm the application against the existing remote and vehicle equipment. The part number 99166ST should be matched to the exact year, make, and model before installation.

Quality Assurance

Dorman supplies this transmitter as a standard replacement part designed to mirror the original remote’s appearance and function on the specified applications. It includes an electronic chip and batteries, and it is built for professional programming and vehicle pairing.