Complete GY6 150cc Front Variator Driver Clutch Assembly used on all 150cc American Sportworks Go Karts. Includes: outer face of pulley (Fan), inner face of pulley (fixed), movable sheave and 6 roller weights. Fits American Sportworks Go Kart Model 6150, 6151, 6152, 7150 and 7151. Replaces American Sportworks Part #14374.