JSPROP Aluminum Boat Propeller 3-Blade Right-Hand Style 10.3x12 14-Spline Pressed-In Hub

The JSPROP OEM upgrade is a 10.3" x 12" right‑hand, 14‑spline aluminum 3‑blade propeller engineered to replace Johnson/Evinrude OEM units on 15–35 HP outboards and stern drives.

This high‑quality aluminum propeller is an aftermarket OEM fitment designed to match the dimensions and spline count of common Johnson and Evinrude props. It offers a corrosion‑resistant finish, a pressed‑in hub for straightforward installation, and blade geometry tuned for balanced acceleration and top‑end performance in small to mid‑range gasoline outboards. Before ordering, confirm diameter, pitch, spline tooth count and rotation match your current prop.

How do I know this propeller will fit my engine?

Measure and compare key dimensions from your current prop: diameter, pitch, spline count and rotation. This JSPROP prop is 10.3" diameter with a 12" pitch, 14 spline tooth, right‑hand rotation and a three‑blade configuration—common for Johnson/Evinrude 15–35 HP models.

• Diameter: 10.3 inches
• Pitch: 12 inches
• Spline: 14 teeth
• Rotation: Right‑hand (clockwise)
• Compatibility: Fits many Johnson/Evinrude OMC 15–35 HP engines

What performance changes can I expect after installing it?

This replacement prop focuses on reliable acceleration, stable cruising rpm and fuel efficiency while maintaining top speed comparable to OEM parts. The three‑blade aluminum design balances thrust and reduced cavitation for everyday recreational boating and work tasks.

• Improved midrange acceleration for quick planing
• Stable cruising rpm for efficient fuel use
• Durable blades that retain shape under normal loads
• Pressed‑in hub simplifies alignment and installation

What is the propeller made of and how long will it last?

The blade and hub are cast from an aluminum alloy with a patented anti‑corrosion coating to resist saltwater and freshwater corrosion. Proper use and regular inspection will maximize lifespan; aluminum props are lighter and easier to repair than stainless models but require attention to dents and dings.

• Material: Aluminum alloy for weight and impact absorption
• Finish: Anti‑corrosion coating for extended service life
• Maintenance: Check for nicks, bent blades, and secure hub regularly

How easy is installation and what should I check before fitting?

Installation is straightforward thanks to a pressed‑in hub that aligns with the engine shaft. Still, verify fitment by checking spline count, shaft size, and rotation; always torque the nut to manufacturer specs and use a new cotter pin or locking device when applicable.

• Tools needed: socket or prop wrench, torque reference, cotter pin pliers
• Precheck: Confirm spline count, diameter, pitch and rotation
• Installation tip: Clean shaft, apply marine grease sparingly, torque per manual
• Post‑fit: Run at low throttle first to ensure no vibration or rubbing

Who is this for? This JSPROP 10.3" x 12" 14‑spline propeller is aimed at owners of Johnson or Evinrude 15–35 HP outboards and stern drives who need an affordable OEM‑fit replacement. It suits recreational boaters, anglers and workboats requiring dependable acceleration, stable cruising, and a corrosion‑protected aluminum build. If you need a like‑for‑like swap for part numbers such as 765049, 763486, 765050 or 778863, and your current prop matches the 10.3x12, 14‑spline, right‑hand specification, this unit is a practical choice. Always double‑check your engine manual or existing prop markings before purchase to ensure proper fit and safe operation.