2001-2005 Allison AL5 TCM

Core is required. Pre-Paid return label will be included in the box.

The AL5 Transmission Control Module is found in the 2001-2005 2500HD/3500, CC and Medium Duty trucks with the Allison Transmission. 

DDP offers a Pre-programmed TCM which comes with either factory calibrations or our enhanced calibrations.

Benefits of our enhanced TCM include:

• Revised shift strategies for better shift RPM & quality.
• Improved torque converter lock-up.
• Works with factory or aftermarket ECM programming.

This plug & play TCM is delivered right to your door and takes roughly 5 minutes to install.

No dealer visit required.

1 Year Warranty