Dorman 99777ST Keyless Entry Transmitter

Dorman 99777ST Keyless Entry Remote

This Dorman keyless entry transmitter is a direct-function replacement for the original key fob on select Ram ProMaster vans. Built with a black housing, 4-button layout, coin-cell battery support, and an electronic chip type of HITAG-AES 4A, it is engineered for reliable remote operation on vehicles using OE FCC ID M3N-40821302.

Key Features

• Direct-function keyless entry remote for select Ram ProMaster 1500, ProMaster 2500, and ProMaster 3500 models
• Matches OE FCC ID M3N-40821302 for the listed applications
• 4-button key fob layout for standard remote functions
• Black housing with coin-cell battery design
• Programming required for vehicle pairing
• Standard replacement grade for OE-style fit and function

Product Details

Dorman 99777ST is a keyless entry transmitter built for 2022-2025 Ram ProMaster 1500, 2022-2025 Ram ProMaster 2500, and 2022-2025 Ram ProMaster 3500 applications with OE FCC ID M3N-40821302. It is designed to match the function of the original remote on the specified vehicles, making it a practical replacement when the factory key fob is lost, damaged, or no longer responds correctly. This part number, 99777ST, is a standard replacement option for drivers needing a dependable Ram ProMaster key fob replacement.

This part cross-references OE-style applications tied to FCC ID M3N-40821302 for the same vehicle platform.

Common Uses

• Restoring remote lock and unlock operation
• Replacing a damaged or nonresponsive key fob
• Replacing a missing keyless entry transmitter
• Addressing worn buttons or intermittent remote function
• Supporting OE-style remote access on Ram ProMaster vans

Installation Notes

Programming is required after installation so the remote can communicate with the vehicle. Verify the OE FCC ID, button layout, and chip type before ordering to confirm the correct application for your Ram ProMaster 1500, ProMaster 2500, or ProMaster 3500. The remote uses a coin battery design; battery inclusion is noted by the manufacturer.

Quality Assurance

Dorman engineers this keyless entry remote from quality materials for reliable performance in the specified applications. It is built as a standard replacement part to match original remote function on compatible Ram ProMaster vehicles.