Sale price$263.00
Year: 2013-17 Ram ProCal 1500/2500/3500/4500/5500



May have applicable lead time. Direct ships from Manufacturer

The AEV RAM PROCAL MODULE is designed as a convenient recalibration tool for 2013-18 Ram trucks, offering a range of distinct functions. Among its most sought-after capabilities is the adjustment of the speedometer to accurately match larger tire sizes up to 48 inches. By correcting the speedometer, the ProCal Module effectively addresses potential issues such as decreased stability control (ESP), disrupted transmission shifting, and impaired engine performance. This ensures proper calibration and optimal performance of the vehicle.

Additionally, the ProCal Module is the only product of its kind that allows the user to recalibrate the TPMS system for larger diameter tires that have a lower inflation pressure than the stock tires – a common scenario that would otherwise lead to an annoying low tire pressure warning light. The ProCal will also recalibrate for axle gear ratio changes, allow users to turn the truck’s one-touch lane change feature on or off and determine whether or not the fog lights turn off or stay on with the high beams (for off-road use only).

The ProCal Module is equipped with a series of easy-to-use DIP switches. By reading the simple instructions included with the ProCal module, the user can quickly dial in a code for the desired recalibration. The entire process can be completed in mere minutes – once the switches are set, simply plug the ProCal Module into the vehicle’s OBD-II and wait for the horn to honk, confirming that the setting has taken effect.

2018 Models

All 2018 model year FCA vehicles have a new security feature that was implemented to prevent the OBD-II diagnostic port from being used for aftermarket recalibration tools and performance tuners. Therefore, the 2018 Ram ProCal Module includes AEV’s Bypass Harness kit. This kit will bypass the new security feature, allowing the vehicle to be properly recalibrated by the end user.

ProCal is compatible with 1500/2500/3500/4500/5500 trucks. This WILL NOT work on 2019 Ram 1500 models.


  • Easy to use DIP switches

  • Recalibrate speedometer for larger tires (up to 48″ tall)

  • Recalibrate TPMS*

  • Axle gear ratio recalibration (3.21-4.88)

  • Turn one-touch lane change on/off

  • Turn fog lights with high beams on/off (off-road use only)

  • Optimizes ESP performance

  • Will not interfere with most performance modules or tuners

California Prop 65 Warning: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm