Heavy Duty Aluminum Outboard Propeller With 13 Spline And Right Hand Rotation For Mercury 25 To 70 HP Engines Featuring 10 3/8 Inch Diameter And 13 Inch Pitch For Rock Solid Grip And Slick Cruising

Heavy duty aluminum marine prop for Mercury outboard motors
✔️ 10 3/8 inch diameter thirteen pitch three blade right turn

This heavy duty aluminum outboard propeller replaces factory parts on small to mid size fishing boats and skiffs that need reliable thrust. You install it on the lower unit of Mercury horsepower engines to transfer power from the motor directly into the water for steady cruising.

✅ Replaces OEM part 48-73136A45 exactly
✅ Three blade design optimized for top speed and acceleration
✅ Right hand rotation matches standard starboard mounting
✅ CNC machined aluminum construction resists corrosion and impact

💡 Why does pitch and diameter matter when picking a replacement prop?

Switching those specs shifts how your boat planes and keeps your engine sitting in the sweet spot for full throttle runs.

- Calibrating the thirteen inch pitch prevents lugging the motor while pulling gear or carrying heavy gear forward

- Changing diameter tweaks bite depth so you get more lift off shallow flats without overheating the transmission bushings

- Choosing raw aluminum casts gives you a handy fix that bends on reef strikes instead of shattering expensive spare parts

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