Mercury Prop 15.25L32 18D – 48-8M0015401

The Mercury Prop 15.25L32 18D (Part #48-8M0015401) is a precision-engineered stainless steel propeller built for high-performance Mercury outboard and sterndrive engines. With an 18" pitch and a 15.25" diameter, this prop is ideal for boaters who demand optimal acceleration, top-end speed, and fuel efficiency across a range of water conditions.

Key Features

OEM Mercury Quality – Manufactured by Mercury Marine to deliver factory-level performance and reliability

Three-Blade Stainless Steel Design – Durable construction for strength and corrosion resistance in salt and freshwater

15.25” Diameter x 18” Pitch – A balanced combination for enhanced mid-range efficiency and planing

Right-Hand Rotation (L32) – Designed for engines using standard rotation props

Performance Tuned – Engineered to reduce ventilation and cavitation, improving speed and handling

Compatibility

The Mercury Prop 15.25L32 18D – 48-8M0015401 is compatible with many Mercury outboard engines and MerCruiser sterndrives using a 15-spline hub system. For exact fitment, verify your engine model or consult PartsVu with your serial number.

Ideal Use Cases

Replacing damaged or underperforming factory props

Upgrading for enhanced cruising speed and fuel economy

Boaters seeking a reliable stainless steel option for saltwater use

Applications requiring standard (right-hand) rotation

Why Propeller Selection Matters

Choosing the correct propeller can drastically impact your boat's performance, including fuel usage, top speed, acceleration, and engine longevity. The Mercury Prop 15.25L32 18D – 48-8M0015401 offers a precise balance between power and efficiency, making it a dependable choice for serious recreational or commercial use.

Frequently Asked Questions

What does 15.25L32 18D mean for this propeller?

It refers to the prop’s diameter (15.25"), pitch (18"), and right-hand rotation (L32), which affects how it moves water and impacts boat speed and handling.

Will this fit my Mercury engine?

If your engine accepts a 15-spline hub and uses right-hand rotation, this prop likely fits. Always check your owner’s manual or contact PartsVu with your serial number for confirmation.

Is stainless steel better than aluminum for props?

Yes. Stainless steel offers superior strength, less flex at high speeds, and greater longevity—especially in demanding saltwater environments.