MSD Transmission Controller Harness

The MSD Transmission Controller Harness (transmission controller wiring harness) is the plug-and-play wiring link between an MSD Atomic TCU transmission controller and the factory automatic transmission. It is made for electronically controlled automatic transmissions. It lets you install the controller without cutting, splicing, or modifying the factory wiring.

Key Features:

• Designed to connect an MSD transmission controller to the transmission's factory electrical connectors
• Plug-and-play design that simplifies installation and helps avoid wiring mistakes
• Dedicated harness versions for popular GM and Ford electronic automatic transmissions
• Made by MSD, a respected name in ignition, electronic control, and performance wiring products

Each harness is built for a specific transmission family, so you can pick the version that matches your transmission. It helps you set up an electronically controlled automatic with a clean, reliable connection.