Our Sea-Doo 230/300 Open Loop Cooling Kit dramatically reduces engine operating temperatures for improved performance & reliability. Includes adjustable water flow regulator for optimum temperature control. Original closed loop system becomes quickly heat soaked in high performance applications. Ope...

Our Open Loop Cooling Kit dramatically reduces engine operating temperatures for improved performance & reliability. Also allows installation of RIVA Performance Ride Plate by eliminating need for heat exchanger. Original closed loop system becomes quickly heat soaked in high performance application...

Designed for use with aftermarket Open Loop Cooling Kits running RIVA cooling line configuration. Features include: Billet aluminum housing. Stainless steel hardware. 160 F Fail Safe Thermostat (locks open in case of overheat condition). Double o-ring seals....

Our cool running Thermostat Kit reduces the operating temperature of your modified 4-TEC® engine by 30°F for maximum reliability and performance. Kit includes: Replacement thermostat Billet coolant inlet flange Stock thermostat removal tool Oetiker® clamps, Oetiker® pliers Fits all 260, ...

Thermostats do degrade and wear out over time. Use this replacement to ensure proper protection of your engine's cooling passages. For use with Riva open loop cooling kit....

Replacement 160 degree thermostat for RIVA Open Loop Cooling kit, part # RY1013-50-1....

-160 Deg (ºF) thermostat a direct drop in replacement for OEM unit in Sea-Doo 4-tec models - Lowers engine temps up to 30 degs (ºF) - A must for any modified Sea-Doo engine that retains OEM cooling system operating under high load or in Hotter climates...