504 MASTERGUARD HUB KIT

For Use With Hustler LE/ LE-4 Series Aluminum Propeller And Express Mach3® EX/ EX-4 Series Stainless Steel Propeller; Outboard; 19 Spline; 4-3/4 Inch Gear Size; For OMC®/ Volvo® Penta® SX Applications; Fits Based on Horsepower Please See The Technical Document For More Information