Collection: Drivetrain & Transmission

Diesel Transmission

Transmission upgrades and TCM tuning for Powerstroke, Duramax, Cummins, and EcoDiesel platforms. Calibrated, dyno-proven, and matched to your truck — select your platform and year to see fitment-confirmed options.

Find your platform

Use the platform and year filters to confirm fitment for your Powerstroke, Duramax, Cummins, or EcoDiesel.

FAQ

Do I need transmission tuning with more power?
Yes — TCM calibration and supporting hardware keep the transmission reliable as engine output climbs.