This is the Toyota OEM Aisin 2jzgte water pump kit that is the stock replacement for the 93-98 Toyota Supra Turbo. This kit works for both the 2jzgte and 2jzgte VVT-i. It is also used to eliminate the 1jzgte twin turbo hydrofan pump setup. This water pump does NOT directly work with the IS300. This kit comes complete with the water pump, rear housing, 2 new o-rings for the coolant bypass tube, and the other associated gaskets. This kit is made by Aisin which is the OEM supplier of many Toyota parts. The pulley is NOT included with this kit.