Superforma Billet Water Pump Replacement 1JZ/2JZ This is a billet part made of the highest quality aluminum which is anodized black. As a direct replacement for the OEM connection, this can be used with AN hose directly to an electronic water pump for best cooling! To use this an electronic water pump needs to be fitted as it replaces the OEM water pump. On the front there is an AN16 connection, and on the back there is an AN6 connection to be able to run a hose/pipe to the turbo for water cooling. Included in the package: O-ring Plug for AN6 connection on the back The water pump replacement/Water pump adapter