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66RFE Transmission HD Street

66RFE Transmission HD Street

Vehicle Fitment:
12-18 Ram 2500 Gas, Ram 3500 Gas

Our 66RFE Transmission HD Street is built to handle your toughest towing jobs or moderate performance modifications. This veteran crafted Ram 2500 and Ram 3500 gas unit features an upgraded heavy duty low stall torque converter, updated billet valve body, a high pressure tuneless pump and more. The 66RFE transmission pairs with Hemi engines to put in work.

$ 5,000.00 USD
Core Charge

66RFE Transmission HD Street

Upgrade Features


  • Heavy Duty Low Stall Torque Converter (Custom Stall Optional)
  • High Pressure Tuneless Pump
  • Updated Billet Valve Body w/Mopar Solenoid Block
  • Billet OD Pressure Plate for an additional OD Clutch
  • Modified Inner Drum
  • Raybestos Powertrain 5-45RFE Stage 1 2C and 4C Clutches
  • Mopar Filters
  • New 66RFE Transmission Pan with Drain Plug


Engineering Description

The 66RFE transmission is a 6-speed Chrysler transmission can best be described as a hybrid engineered solution that combines elements of the 68RFE and 545RE designs. The 66RFE transmission utilizes many of the same internal components and gearset as the 68RFE within a 5-45RFE case. The 66RFE transmission began manufacturing in 2012 for the gas engine Ram 2500 and 3500 trucks.

66RFE Transmission

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