Custom Aisin transmission tuning for your 2019-2024 Ram Heavy Duty Truck is here!  We are offering this as a tuning package bundle that includes the required HP Tuners RTD4 tuning device, HP Tuners Dodge Smart Access Cable, Tuning Credits from HP Tuners, and our custom tuning file for use with the HP Tuners device.

Please note this is transmission (TCM) tuning only.  No engine tuning is included with this purchase.

You will be required to use the HP Tuners TDN app to read out the stock tune on your TCM as well as tune your TCM with the RTD4 device.

Please email ray@doublerdiesel.com for more information and questions.

RAM AISIN Transmission Tuning Support

HP Tuners is proud to offer first-to-market custom tuning support for the AISIN AS69RC transmission in 2019–2024 RAM 3500–5500 6.7L Cummins trucks! Refine your transmission with over 35 parameters for smoother shifts, stronger pulls, and better drivability.

Haul Heavy. Shift Easy.

• Adjust shift scheduling, timing, and torque ramp rates
• Improve drivability and towing performance
• Smooth, consistent shifts under load
• Available worldwide—pickup and cab-chassis coverage

Vehicle Compatibility

The AISIN AS69RC transmission is found in the following models which can now be tuned:

• 2019-2024 RAM 3500 High Output (HO) Pickup 6.7L Cummins Diesel Engine
• 2019-2024 RAM 4500-5500 Cab-Chassis 6.7L Cummins Diesel Engine

Built for RAM HD Trucks

Whether you’re towing for work or hauling for the weekend, HP Tuners gives you control over the AISIN transmission’s performance. With simple OBDII-based licensing and first-to-market coverage, you can tune your RAM to drive exactly how you want.