Increase your boat's engine performance with the MERCRUISER III HUB 23 SPLINES (VS-28). It provides you with a fast way to change propeller pitch position and the resulting speed. The technical rubber used is different from traditional rubber materials and has fine quality, flexibility, and toughness. HMS Hubs, Inc. is a trusted supplier to the world's leading OEM Propeller Manufacturers. They also have Chrysler/Force, Johnson/Evinrude, Tohatsu/Nissan, Honda, Suzuki, Yamaha, and Volvo stock. Key features: Best-Quality Hub Extremely long-lasting Precision Machining Exceeds the high standards set by MERCRUISER because it is made with SAE-certified steel, an ISO 9001 facility Specifications: Brand: HMS hubs Manufacturer's Part Number: VS-28 Category: Boat accessories VS-28Spindle length: 4.718" (~4 3/4")Flange Dia.: **Rubber O.D.: 3.365"Max. Inside Dia.: 1.530"Uses Wear Ring: noneRubber Duro: 80Spline count: 23 spline