PSI Power Transmission Edition Shift Enhancing Module (03-07 5.9L RAM 3500 w/ 48RFE Transmission)Find parts that fit my vehicle

Shift Enhancing Control Module. The PSI Power Transmission Edition Shift Enhancing Module is engineered to improve the performance and longevity of your RAM 3500's automatic transmission. By increasing line pressure, it enhances shift firmness, reduces slippage, and improves transmission efficiency—especially during towing or high-performance driving. With selectable tuning via an included rotary switch, drivers can toggle between Stock, Stage 1, and Stage 2 settings on the fly to suit changing load or driving demands.

Construction and Appearance. The module features a compact, weather-resistant housing and comes equipped with OE-style connectors for seamless integration with factory wiring. Built for reliability and durability, it utilizes automotive-grade circuitry to ensure stable operation under varying load conditions. The rotary switch is clearly labeled for intuitive use and mounts easily within reach of the driver.

Installation. Installation is fully plug-and-play and requires no cutting, splicing, or tuning. Simply connect the module to the factory harness using the included connectors and mount the switch for easy access—no special tools needed.

Warranty. This product includes a 1-year limited warranty covering defects in materials and workmanship.

Application. This PSI Power Transmission Edition Shift Enhancing Module fits 2003 to 2007 5.9L RAM 3500 with 48RFE Transmission.

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