The Bombardier Recreational Products 13.875 X 9 A3R PROP HYDRUS is a propeller (BRP). It is an aluminum-based substance that becomes harder and more durable as it ages. It's a three-bladed propeller that rotates on the right side. The pitch angles are fine-tuning to accelerate and channel water, reducing slides and improving performance and efficiency. It is a little heavier, weighing around 8.00 pounds. For navigational purposes, this weight is a good size. This tilt gives improvement to the machine's overall performance and boat lift. The prop Hydrus is 13.875 inches in diameter and has a pitch distance of 9 inches each revolution. Key features: Vents had been refining for a very quick hole-shot. Through severe rake, it improves handling and boat lift. Blade design with a high rake for faster speeds. Mid-range outboards have improved performance. A big blade in a larger area is necessary for significant reverse thrust. In any water condition, the unique blade profile provides maximum thrust. Proven to achieve unrivaled results "at work" and elsewhere Superior materials provide unrivaled safety and comfort. Product Details: SKU: 177202 UPC: 824375016783 Weight: 8.00 LBS MATERIAL: Aluminum PITCH: 11 Pontoons, high reverse thrustEngine Application2-Stroke 40-60 Horsepower Two Cylinder Large Gearcase, 55-75 Horsepower Three Cylinder 75-140 Horsepower Four Cylinder 40/50/60 hp (Evinrude E-TEC ) 2004-thru, 45 hp (Commercial) 1986-thru; 50 hp 1971-74; 50 hp (Commercial) 1980-thru; 55 hp (Commercial) 1980-thru; 55 hp 1968-69; 60 hp 1970-71; 60 hp 1986-96; 65 hp 1972-73; 65 hp (Commercial) 1984-2001; 70 hp 1974-2001; 75 hp (large gearcase) 1975-84; 75 hp 2004-thru; 85 hp 1969-80; 85 hp 1991-95; 88 hp 1981-thru; 90 hp 2004-thru; 90 hp 1981-thru; 100 hp 1979-80; 100 hp 1988-thru; 100 hp 2004-thru; 110 hp 1986-89; 115 hp 1973-thru; 120 hp1986-94; 125 hp 1971-72; 135 hp 1973-76; 140 hp 1977-84; 140 hp 1986-94 Attaching Hardware:H2560-70 Horsepower 4-Stroke Continued 70 hp (Evinrude & Johnson 4 Cyl.) 1998; 70 hp (Evinrude 4 Cyl.) 1999-2001; 60-70 hp (Johnson 4 Cyl.) 2002-thru Attaching Hardware:H23Attaching HardwareH25 Cotter pin: Sierra: 18-3742 Cotter pin (100/box): Other: 354622 Nut: Sierra: 18-3705 Quicksilver: 859929 Spacer, nut, & pin kit: Sierra: 18-3716 Quicksilver: 802010Q1 Splined spacer (aft): Sierra: 18-4228 Quicksilver: 859892 Thrust washer (forward): Sierra: 18-4222 Quicksilver: 859915 H23 Cotter pin: Sierra: 18-3735 Flat washer: Other: 5030441 Nut: Sierra: 18-3726 Splined spacer washer (aft): Sierra: 18-3798 Other: 5030925 Splined spacer, washer, nut & cotter pin kit: Sierra: 18-3774 Thrust washer (forward) 60 hp '02-'03, 70 hp '01-'03: Other: 5032551 Thrust washer (forward) 70 hp 1998, 2000 TNT (20" shaft): Other: 5030924 H76 Cotter pin: Sierra: 18-3742 Cotter pin (100/box): Other: 354622 Nut: Sierra: 18-3705 Quicksilver: 859929 Spacer, nut, & pin kit: Sierra: 18-3716 Quicksilver: 802010Q1 Splined spacer (aft): Sierra: 18-4228 Quicksilver: 859892 Thrust washer (forward): Sierra: 18-4222 Quicksilver: 859915 Michigan Wheel: 991210