First-to-Market AISIN Tuning Support Custom tuning for the AS69RC in 2019–2024 RAM 3500–5500 6.7L Cummins trucks. Smoother Shifts. Stronger Pulls. Over 35 parameters to fine-tune upshifts, shift timing, and torque delivery. What You Need - MPVI3 VCM Suite - 4 Universal Credits - Dodge Smart Access Cable* (*Required for ‘22-’24 Models) | HP Tuners

This is a MUST for any truck that has a 68-RFE or Aisin AS69RC transmission in it. Dodge decides to incorporate a transmission cooler bypass valve into the cooling system of the 68-RFE and Aisin AS69RC that bypasses the transmission cooler during cold operation. The intent is to force the transmission to warm up faster, the reality is this bypass valve leaks and sticks in the bypass position in almost every case causing the transmission cooler flow to bypass the trans cooler essentially eliminat