Aluminum Boat Propeller 12 1/4 Inch Diameter 15 Inch Pitch Right Hand Rotation 13 Spline Fits BRP Johnson Evinrude OMC Stern Drive 40 75 HP OEM Upgrade 3 Blade Prop 12.25 Diameter 15 Pitch

Aluminum 3-Blade Boat Propeller, 12.25in Dia x 15in Pitch
✔️ Right-hand rotation, 13-spline, 3-blade, 12.25in dia, 15in pitch

This aluminum alloy 3-blade propeller measures 12.25 inches in diameter with a 15 inch pitch and a 13-spline hub. It's designed as an OEM upgrade for stern-drive engines in the 40-75 HP range. The pressed-in hub enables easy installation, and the anti-corrosion coating extends service life.

✅ 13-spline hub compatibility
✅ Diameter: 312 mm / 12.25 in; Pitch: 381 mm / 15 in
✅ Right-hand rotation; 3-blade design
✅ Material: aluminum alloy with anti-corrosion coating; Color: black
✅ Fits 40-75 HP stern drives (OEM upgrade)

💡 What is a 12.25 dia, 15 pitch aluminum boat propeller used for?

This handy guide covers fit and performance considerations. - Prop converts engine power into thrust for propulsion - Diameter, pitch, and spline must match the engine and drive to avoid cavitation - Right-hand rotation and blade count influence acceleration and steering - Aluminum with anti-corrosion coating helps durability