MechanMagic Key Fob Replacement for Chrysler & Dodge — M3N-40821302 5-Button Pre-assembled with Battery

MechanMagic Key Fob Replacement M3N-40821302 is a pre-assembled 5-button proximity smart remote that replaces factory push-start fobs for select Chrysler 300 and Dodge models from 2011–2018.

If your original push-start key fob is lost, damaged, or the buttons no longer respond, this MechanMagic replacement gives you a ready-to-program alternative built to the same frequency and pinout as the OE-style remotes. Supplied with the electronics and a 3V coin cell battery installed, the unit mirrors the function set of the factory five-button smart key (FCC ID: M3N-40821302) and fits vehicles that use that remote platform. This is a non-OEM shell and comes without any manufacturer logo.

Which vehicles and part numbers does this remote match?

This MechanMagic key fob is designed to be compatible with a specific list of Chrysler and Dodge push-start models that originally used the M3N-40821302 remote. It also corresponds with the common replacement part numbers used by dealers and locksmiths.

• Compatible models: Chrysler 300 (2011–2018), Dodge Charger (2011–2018), Dodge Challenger (2015–2018), Dodge Dart (2014–2016).
• Compatible OEM part numbers: 5026676AH and 5026676AC (and variants).
• FCC ID match: M3N-40821302 / M3N40821302 — operates at 433 MHz.

What comes inside the package and how is it prepared?

The MechanMagic replacement arrives fully assembled with the internal circuit and battery already installed so you can take it directly to a programming appointment. The remote shell is new and contains the tested electronics; since this is a third-party product, it does not carry the original brand logo.

• Included: 1 x 5-button keyless entry remote with electronics and pre-installed 3V lithium coin battery.
• Condition: new aftermarket housing with factory-style internal board pre-tested for function.
• Note: No logo on the shell; packaging contains only the remote.

How is the remote programmed and what should I expect?

This unit requires professional programming by a qualified locksmith or dealership; vehicle self-programming is not supported. Expect the programmer to sync the remote to your vehicle’s immobilizer system and validate all key functions — locking, unlocking, trunk, panic, and remote start if applicable.

• Programming: professional service required (dealer or certified locksmith).
• Function checks: confirm lock/unlock, panic, trunk release, and remote start availability.
• Tip: bring vehicle proof of ownership and any original key information to speed the process.

What limitations or compatibility notes should I know?

Important: this replacement is intended only for vehicles equipped with a push-start (proximity start) system. It will not work with traditional mechanical keyed ignition systems. Also, because it’s non-OEM, cosmetic differences such as the absence of a logo are expected.

• Works only with push-start/proximity vehicles — not compatible with keyed ignitions.
• Operates at 433 MHz frequency matching the listed FCC ID.
• Not an original manufacturer remote; cosmetic and branding differences apply.

Who is this for? The MechanMagic M3N-40821302 replacement is for owners of compatible Chrysler or Dodge push-start vehicles who need a reliable, pre-assembled spare or replacement remote without the OEM logo. It’s ideal if you want a unit ready for professional programming, supplied with battery and tested electronics, and matched to the common 5026676 part numbers. If you prefer factory-badged hardware or need self-programming capability, consult your dealer for an OEM option.