Outboard Propeller, Upgrade OEM 15 Spline Tooth Aluminum Outboard Boat Propeller Fit Mercury Engines 40-140 HP, 4-1/4" Gearcase, 3-Blade, RH (Right Hand Rotation), OEM Parts No. 48-77344A45

Precise Compatibility: Our three-blade outboard propeller is built for selected Mercury 40–140 HP outboard engines with a 4-1/4 in gearcase and right-hand rotation. It can be used as a direct replacement

Sturdy & Durable: Made from corrosion-resistant aluminum alloy, this boat propeller is suitable for extended use in both freshwater and saltwater conditions. It also remains lightweight to improve rotational efficiency

Powerful Thrust: With a 13-1/4 in diameter and 17 in pitch, this outboard boat propeller is optimized for low-torque thrust, enabling rapid start-up and heavy loads. It is suitable for heavy-duty towing and water skiing

Easy Installation: Our boat outboard propeller includes a robust M21 interchangeable hub kit, ensuring a secure connection to the engine drive shaft and simplifying installation