Mitsubishi physical key shells are the outer plastic housings (cases) of Mitsubishi car keys or key fobs. These shells hold the internal electronics, battery, buttons, and the physical metal key blade.
What a Mitsubishi physical key shell is
It is a replaceable outer case only — it does not include the circuit board, transponder chip, or battery. Owners transfer the working internals from a damaged original key into the new shell. The metal blade is either fixed, flip-style, or a removable emergency insert.
Why replace the shell
Cracked or broken plastic
Worn or missing buttons
Detached or damaged key blade