The Classic MegaSquirt Replacement Hardware Kit provides all the essential mounting and enclosure components for building or repairing your Classic MegaSquirt-2 or MegaSquirt-3 Kit ECU. Whether you're missing a single screw or rebuilding from scratch, this kit ensures a smooth, frustration-free assembly.

These are the exact parts included in our full ECU kits—no off-brand substitutions, no sizing guesswork. Everything fits properly with the standard MegaSquirt case and mainboard.

Includes:

• Case screws for final enclosure assembly

• DB37 female socket for main wiring connection

• DB37 backshell for strain relief and protection

• Mica insulator to isolate high-power components

• Heatsink compound for thermal transfer efficiency

• Nylon screw and nut for secure voltage regulator mounting