YOUNG PROPS 12x17 Boat Propeller for Johnson/Evinrude 13-Tooth RH — 3-Blade Alloy-Aluminum, 3-3/8" Gearcase Fit

The YOUNG PROPS 12 x 17 3-blade propeller is a direct-fit replacement for Johnson/Evinrude 40–75HP stern drives with a 13-tooth spline and right-hand rotation.

This alloy-aluminum propeller is engineered to match the factory specifications used on many Johnson and Evinrude outboards and stern drives from the mid-1970s through the early 2000s. It balances strength and light weight to restore acceleration, top speed potential and reliable drivability. The hub includes the thru-hub exhaust layout and 13-tooth spline that fits 3-3/8" gearcases common on these engines.

Will this propeller fit my Johnson or Evinrude 40–75HP engine?

Yes—this propeller is manufactured to replace OEM part numbers that serve Johnson, Evinrude and related BRP models in the 40–75HP range. It’s intended for engines with a 13-tooth spline and the 3-3/8" gearcase size. Confirm year and model compatibility before ordering for a precise match.

• Designed for 40–75 HP models, including common ranges: 40, 48, 50, 55, 60/65 HP
• 13-tooth spline to fit compatible drive shafts
• Right-hand rotation (clockwise thrust)
• 3-3/8" gearcase standard fit for many Johnson/Evinrude years

How does the 12 x 17 size affect performance on the water?

Diameter and pitch define how a prop converts engine power into forward motion. The 12" diameter and 17" pitch create a balance between acceleration and cruising speed suitable for small to mid-size skiffs and bass boats using 40–75HP engines. Expect responsive throttle response with good top-end potential when matched to hull and load.

• 12" diameter: compact blade sweep for maneuverability
• 17" pitch: moderate pitch for combining top speed and mid-range torque
• Three blades: stable handling and predictable cavitation behavior
• Right-hand rotation: standard thrust direction for listed engines

What materials and durability features does this propeller offer?

Constructed from alloy-aluminum, the propeller aims to provide a lightweight yet resilient solution that withstands everyday boating stresses. Manufacturing includes quality checks to limit defects, and the included hub assembly is designed for straightforward installation and reliable engagement with the engine’s spline.

• Alloy-aluminum body for corrosion resistance and reduced weight
• Hub kit installed as shown in product photos for quick fitment
• Manufacturing quality control to preserve RPM and throttle response
• 12-month replacement policy for blade fracture or hub slip (see exclusions)

How easy is installation and what should I expect out of the box?

The propeller ships with the hub kit assembled, matching the visual presentation in product images. For most users, installation follows the same steps as the OEM propeller: slide onto the splined shaft, secure with the prop nut and cotter pin, and test for proper clearance and rotation. Routine inspection after initial use is recommended.

• Comes as pictured with hub kit installed for quick mounting
• No special tools beyond standard prop nut wrench and pin tools
• Verify shaft spline engagement and torque to manufacturer specs
• Inspect after first outing to confirm secure fit and performance

Who is this for: Boaters, anglers and small-boat owners who need an affordable, OEM-compatible replacement prop for Johnson and Evinrude 40–75HP outboards or stern drives. It’s ideal as a service spare, a direct swap for damaged factory props, or for those restoring period engines from the 1970s through early 2000s who need a 13-tooth, right-hand rotation propeller that balances acceleration and cruising performance.