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Black rectangular key fob with four round buttons and integrated metal door key, 7.3 by 3.7 cm

Unique-Bargains

Unique-Bargains Replacement Keyless Entry Remote Car Key Fob M3M-40821302 433MHz 4A Chip with Door Key

SKU CH-1N74-W8PVS

Replacement keyless entry remote fob operating at 433 MHz with 4A chip and integrated door key fits Chrysler 300 2019-2020, Chrysler 200 2015-2017 and Dodge Charger Challenger 2019-2021

  • Product typeReplacement Remotes / Key Fobs
  • Ready to programme for Chrysler 300 2019‑2020 models
  • Fits Chrysler 200 2015‑2017 and Dodge Charger 2019‑2021
  • Operates on 433MHz frequency with 4A chip for responsive control
  • Four buttons handle lock, unlock, panic and trunk release
  • Includes CR2032 battery and integrated door key for immediate use

Replacement Remote for Chrysler and Dodge Models

This Unique-Bargains keyless entry remote carries FCC ID M3M-40821302 and operates at 433MHz with a 4A chip. It fits Chrysler 300 2019-2020, Chrysler 200 2015-2017, Dodge Charger 2019-2021 and Dodge Challenger 2019-2021. The unit includes a built-in door key and four buttons for lock, unlock, panic and trunk release. A CR2032 battery is supplied.

Thermals Noise and Power Draw

The remote draws minimal current from the installed CR2032 lithium cell during button presses and remains passive otherwise. No active cooling or audible components are present, so operation is silent. Battery life depends on usage frequency and environmental temperature.

Upgrade Path and When to Switch

This fob replaces a lost or damaged original remote for the listed vehicles and adds a physical door key. It requires professional programming and key cutting by a locksmith or dealership before use. Buyers who need a remote without an integrated blade or who own models outside the stated fitment should look elsewhere.

How it compares

Measured against everything we stock in Car Alarms, Remote Start & Key Fobs, at today’s prices. Recalculated every night.

Price $28.99
Pricier than about 73% of the 211 comparable items (median $16.99).

Specifications

Product
Brand nameUnique Bargains
Product typeReplacement Remotes / Key Fobs

Questions about this item

How do I install the M3M-40821302 key fob, and what step do people often get wrong?

A qualified locksmith or dealership must program the remote and cut the door key; the step people miss is confirming the vehicle accepts the new fob before the key is cut.

What maintenance or replacement will the fob need later?

The CR2032 lithium coin cell will need replacing when the 433 MHz signal range drops or buttons stop responding.

What limit shows up first under sustained use?

Battery depletion is the first limit; the CR2032 cell drains faster with frequent locking, unlocking, panic and trunk operations.

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