Created for high-efficiency cooling, the 32cc Bonzi “Very Cool” Water Jacket is a great mod for your Zenoah Stock G320PUM. (Note: The “Very Cool” Water Jacket comes standard on the BZx4 engine modification package). Features: CNC machined fins for increased heat dissipation 2 inlets and 2 outlets for increased cooling water flow Increased water volume for more efficient cooling and better fit under the hatch (as compared to the stock Zenoah jacket) Includes stainless steel cap screws (for mounting) and brass water fittings
