Our cooler by-pa-ss delete kit is for use with F-ord 6R60, 6R80 GEN1 and GEN2 automatic transmissions. Please note this kit is not for ZF6 transmissions. The cooler by-pa-ss delete kit includes the by-pa-ss replacement assembly.Corrects/Prevents/Reduces:Provides all-time cooler flow regardless of temperaturePrevents overheatingReduces transmission fluid temperatureEliminates thermostatic assemblyAllows you to accurately check fluid level immediately after install without having to wait or go through a warm-up cycle