Industrial 545RFE Updated Transmission Shift Solenoid Transmission Shift Solenoid

Description:

The 545RFE Updated Transmission Shift Solenoid Block Pack is used in Chrysler, Dodge, and Jeep automatic transmission systems to control hydraulic pressure routing for gear shifting, torque converter lock-up, and line pressure regulation. Commonly installed in 45RFE / 545RFE / 68RFE transmissions where electronically controlled solenoids manage shift timing and hydraulic circuit operation for smooth and adaptive transmission performance. Transmission technicians, rebuild specialists, and OEM service providers use this solenoid pack for valve body repair, shift quality restoration, diagnostic fault correction, and replacement of failed or upgraded solenoid assemblies in RFE-series transmissions.

Applications:

The 545RFE solenoid block pack is commonly used in Chrysler group vehicles including Dodge Ram 1500–3500, Jeep Grand Cherokee, Jeep Liberty, Dodge Durango, and Chrysler Aspen equipped with 4.7L and 5.7L engines where hydraulic control of gear selection, pressure modulation, and torque converter lock-up is required to maintain drivability, towing performance, and transmission durability under load.

Technical Specifications:

• Manufacturer: OEM 
• Model / Part number: 545RFE / 45RFE / 68RFE updated solenoid block pack
• Product type: Automatic transmission solenoid assembly (valve body integrated pack)
• Transmission type: 45RFE / 545RFE / 68RFE 4–5 speed automatic
• Vehicle compatibility: Dodge Ram, Jeep Grand Cherokee, Dodge Durango, Chrysler Aspen (RFE applications)
• Function: Hydraulic shift control, EPC pressure regulation, torque converter clutch control
• Operating voltage: 12V DC
• Construction: Integrated electromagnetic solenoids with valve body mounting plate
• Mounting: Transmission valve body internal installation
• Fluid type: Automatic transmission fluid (ATF+4)
• Control type: ECU-controlled solenoid operation (on/off and PWM depending on function)
• Application environment: Automotive automatic transmission hydraulic system
• Configuration: Updated design solenoid block with improved connector/plate revisions

Common Replacements:

• Mopar OEM 545RFE updated solenoid pack (latest revision TRS plate version)
• Sonnax upgraded RFE valve body and solenoid correction kit
• Dorman transmission solenoid block kit for 45RFE/545RFE/68RFE systems