KeylessOption Key Fob Replacement for Chrysler & Dodge M3N-40821302 — 3-Button Remote with Valet Key, Dealer-Programmable

KeylessOption’s 3-button M3N-40821302 replacement remote is a tested, dealer-programmable key fob that restores keyless entry and push-to-start functionality for compatible Chrysler and Dodge models.

If your factory key fob is lost, damaged, or the buttons no longer respond, this KeylessOption replacement mirrors the original’s shape, button layout, and features while arriving unlocked and ready for programming by a dealer or qualified locksmith. The remote includes an uncut slide-out valet key and matches part numbers M3N-40821302 and M3N40821302 so it integrates with vehicles equipped for push-to-start operation.

Which vehicles and part numbers does this remote fit?

This KeylessOption fob is designed to replace the original M3N-40821302 remote for many Chrysler and Dodge models. It fits model years and vehicles that use the same part number and push-to-start configuration.

• Compatible part numbers: M3N-40821302, M3N40821302
• Common fit: 2011–2018 Chrysler 300
• Also fits: 2011–2019 Dodge Charger, 2014–2018 Challenger (including Hellcat), Durango, Journey
• Additional coverage: 2013–2016 Dodge Dart where same part number applies

How does programming and setup work?

The remote ships unlocked and must be programmed to your vehicle’s immobilizer system by an authorized dealer or a certified automotive locksmith. It arrives fully tested so technicians only need to pair it to your car—no internal repairs or battery checks required.

• Delivered unlocked, never factory-programmed
• Programming method: dealer or locksmith required (vehicle-specific procedure)
• Includes an uncut slide-out valet key for manual entry if needed
• Battery typically installed and tested before shipping

What features and quality should I expect from this replacement?

The KeylessOption remote replicates the original in form and function, with the same three-button layout for lock, unlock and panic. It’s built to the same physical dimensions so it fits factory key slots, cup holders, and key pockets without modifying the vehicle.

• Three-button layout matching original OEM design
• Durable housing that matches factory fit and feel
• Includes valet key insert—uncut for dealer trimming
• Fully tested before shipping to ensure electrical integrity

Who this is for: Drivers who need an OEM-form replacement remote for Chrysler or Dodge vehicles that use the M3N-40821302 part number, and who plan to have the remote professionally programmed. Ideal for owners replacing a lost or damaged fob who want a plug-in, dealer-programmable solution that preserves original operation and valet key functionality.