4R75E 4-Speed Automatic Transmission

The Ford 4R75E is a fully remanufactured 4-speed automatic transmission, designed to meet or exceed original equipment manufacturer (OEM) specifications. Each transmission undergoes a rigorous remanufacturing process, including teardown, triple cleaning, and thread chasing, with all new bushings installed. The valve body is rebuilt and tested using the C.A.R.S. testing system to simulate real-world use and validate performance. This remanufactured transmission is assembled with all new o-rings, gaskets, and seals. It undergoes custom dyno testing to verify its readiness for the road. Powertrain Products backs this transmission with a 7-year, million-mile warranty and includes free core return shipping. Key upgrades for this transmission include an optimized valve body with a new boost valve kit and pressure regulator valve to eliminate shudder, soft shifting, and delayed engagement. Improved clutch packs with a stronger spiral lock snap ring replace the failure-prone OE intermediate clutch snap ring. Premium solenoid packs restore stable line pressure and smooth shifting, while new, custom-spec bushings ensure stabilized pressures and hydraulic integrity. Updates to the torque converter and pump eliminate front seal leaks and excessive vibration. For towing, performance, and police applications, an 8-plate direct clutch pack upgrade is included. For 2001 and newer models, a new 3-4 capacity valve sleeve and an extra-thick separator plate address cross-leak and plate-cracking issues. This product is subject to California Proposition 65 warnings regarding potential exposure to chemicals known to cause cancer and reproductive harm.