Fits 2009 Polaris Sportsman 800 EFI HO Valve Guide,br>
RAD Powersports Valve Guide Black Diamond Valves Impregnated by special German process Improved wear properties Reduced friction Superior resistance to corrosion and wear Lightweight and strong Excellent flow characteristics

RAD Powersports Valve Guide Black Diamond Valves All RAD Powersports Black DiamondG Stainless steel valves are impregnated by a special German process to a depth of 0.002, with a surface build up of 0.0002. This Black Diamond process improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Black DiamondG Valves are lightweight, strong, one piece forgings with profiles that provide excellent flow characteristics.