Find the Propeller for Your Boat

Step 1: Select Your Engine Type

Start by choosing whether your boat has an outboard, sterndrive, inboard, or ski/wakeboard propulsion system.

Step 2: Identify Your Engine or Drive

Follow the prompts to select the appropriate manufacturer and engine or drive specifications.  Accurate engine identification is essential because propeller compatibility depends on more than horsepower alone.

Step 3: Filter Compatible Propellers

Review the matching propeller options and compare the available sizes, materials, and designs.  Choose the propeller that best matches your boating needs. 

The right propeller does more than move your boat through the water.  It affects acceleration, engine RPM, cruising efficiency, and top speed. 

When selecting a new propeller, consider four important factors:

• Compatibility: the propeller must fit your engine, drive, shaft, and hub system
• Diameter: The overall diameter of the circle swept by the propeller blades
• Pitch: The theoretical distance a propeller travels forward in one revolution
• Blade Design & Material: Blade count, shape, and material influence how a propeller performs

A properly selected propeller should allow your engine to operate within its manufacturer's recommended wide-open-throttle (WOT) RPM range.

Aluminum Propellers

• Design: Thicker blades create more drag in the water, which slightly lowers top-end speed.
• Flexibility: Blades flex under heavy load and high RPMs, which can reduce acceleration (hole shot) and fuel efficiency on larger boats.
• Impact Protection: Softer metal acts as a sacrificial part; blades bend or break upon hitting an underwater obstacle, which helps protect the lower unit gears and prop shaft.
• Best For: Lower-horsepower engines (typically under 150 HP), smaller boats, shallow or unfamiliar waters with heavy debris.

Stainless Steel Propellers

• Design: About 5 times stronger than aluminum, allowing for much thinner, more efficient blades that cut cleanly through the water.
• Flexibility: Minimal to no blade flex under high torque or aggressive trim angles, translating to better grip, tighter turns, faster time-to-plane, and higher top-end speeds.
• Impact Protection: Rigid structure transfers impact energy directly to the lower unit and drive shaft, increasing the risk of expensive gearcase damage if you strike a hard object.
• Best For: Higher-horsepower engines (150 HP and up), heavy boats, watersports, and deep or well-known waters.