Stainless Steel Outboard Boat Propeller 13x21 For Mercury 40-140HP Engines, 3 Blade, Right Hand Rotation, 15 Tooth Hub, Includes Hub Kits And 4.25 Gearcase Backup Prop

Stainless Steel 13x21 Outboard Propeller for Mercury 40-140HP Engines
✔️ 13 Inch Diameter 21 Inch Pitch 3 Blade Right Hand 15 Tooth Stainless Steel Hub Kit Included

Stainless steel outboard boat propeller works as a reliable spare or primary choice on many 4.25 inch gearcase motors during fishing trips and daily runs.

✅ 13 inch diameter with 21 inch pitch delivers solid top end speed
✅ Right hand rotation and 15 tooth spline matches most 40 to 140 horsepower setups
✅ Three blade design improves acceleration while keeping fuel use low
✅ Full hub kit with thrust washer drive sleeve adaptor tab washer and nut ships together
✅ Polished stainless steel resists corrosion and holds up under heavy use

💡 How does propeller pitch and diameter change boat performance on mid range outboards? Stainless steel props give better durability and top speed than aluminum options. - Correct pitch keeps the motor in its best rpm range without overloading the engine - Diameter size controls how much water the blades push for stronger acceleration - Right hand rotation and tooth count ensure direct fit on popular 4.25 inch gearcases - Built in hub kit lets you swap props fast when you need a backup on the water