Industrial 42RLE Shift Solenoid Block Assembly

The 42RLE Transmission Shift Solenoid Block Pack with Filter is a Chrysler/FCA OEM or aftermarket replacement that precisely controls hydraulic fluid flow for gear shifting, line pressure regulation, and torque converter lock-up in 42RLE 4-speed automatic transmissions. It mounts inside the transmission valve body, integrating electromagnetic solenoids with an aluminum valve body interface and an internal transmission fluid filter element (ATF+4) to protect the hydraulic circuit. Applications include Jeep Liberty, Wrangler, Dodge Dakota, Durango, Nitro, and Chrysler 300, with ECU-controlled actuation for gear selection, pressure regulation, and torque converter lock-up to maintain drivability under varying load. Operating at 12V DC and designed for valve body internal installation, the solenoid block supports on/off and PWM control; common replacements are Mopar OEM 42RLE solenoid pack assembly with filter, Sonnax upgraded 42RLE valve body and solenoid repair kit, and Dorman transmission solenoid block kit for 42RLE applications.