510 MASTERGUARD HUB KIT

For Use With Hustler LE-4 Series Aluminum Propeller And Express Mach3® EX-4 Series Stainless Steel Propeller; Outboard; 17 Spline; 4-1/4 Inch Gear Size; For Volvo®/ Penta® AQ Applications; Fits Based on Horsepower Please See The Technical Document For More Information