Mercury – Trophy Sport 4-Blade Stainless Steel Propeller | 10.625" Diameter x 12" Pitch | Right-Hand Rotation | 4-Blade | Stainless Steel | Polished Finish | 878612A46

Overview

There’s something special about a prop that responds instantly when you hit the throttle the kind that lifts your boat smoothly onto plane and glides across shallow flats like it’s born for it. The Mercury Trophy Sport 4-Blade Stainless Steel Propeller (Part Number 878612A46) delivers that feeling every time. Built for bay and flats boats running 30 to 60 HP outboards, it’s designed to provide instant lift, tight control, and impressive grip when the water gets tricky. It’s the prop you can count on, whether you’re chasing fish across a windy channel or cruising home through skinny water at sunset.

Key Features

• Diameter and Pitch: 10.625" Diameter x 12" Pitch
• Rotation: Right-Hand Rotation
• Blade Count: 4-Blade Design for superior lift, balance, and handling
• Material: Premium Stainless Steel for strength, stiffness, and longevity
• Finish: Polished stainless finish offers corrosion resistance and a clean, professional look
• Hub System: Includes Flo-Torq Reflex Hub Kit (835257K12) for drivetrain protection from minor impacts
• Design Details: Optimized blade geometry for quicker planing, steady cruising, and confident maneuvering in shallow or tight areas

Engine & Boat Compatibility

This Mercury propeller is built for boaters who need fast lift, control, and smooth response from their smaller outboards.

• Recommended for Mercury and Mariner 40–60 HP BigFoot/Command Thrust outboards
• Also compatible with Mercury and Mariner 25 HP BigFoot/Command Thrust, 30 HP TwoStroke, 30–55 HP SeaPro/Marathon, 30 HP FourStroke (1994–2005), and 40–60 HP TwoStroke and FourStroke (non-BigFoot/Command Thrust, 1977 and newer)
• Ideal for flats boats, bay boats, and light fishing boats that require a combination of speed, lift, and precision in shallow water

Performance Benefits

The Mercury Trophy Sport 4-Blade Stainless Steel Propeller with a 12-inch pitch brings together speed, control, and responsiveness like few others in its class. The four-blade design provides extra bite in the water, allowing your boat to jump onto plane faster while staying level and stable. You’ll notice smoother acceleration, better mid-range cruising, and exceptional control when navigating turns or narrow channels.

This prop’s stainless-steel build means it doesn’t flex under pressure — every bit of your engine’s power translates directly into thrust. That makes it especially effective when you’re running through shallow flats or fighting against current. Even in wind chop or swirling water, the Trophy Sport maintains a strong, consistent grip, giving you a steady, confident ride.

The polished finish isn’t just for looks — it’s engineered to resist corrosion and wear in both saltwater and freshwater. And with Mercury’s trusted craftsmanship, it’s a prop you can install, trust, and run for years without worry.

Why this prop is a smart real-world choice:

• Mercury OEM quality: Designed and tested by Mercury engineers for perfect compatibility and lasting reliability.
• Reliable and easy to maintain: Premium stainless steel resists corrosion and maintains peak performance.
• Cost-effective vs. high-performance props: Offers outstanding lift, grip, and balance at a fair value.
• Versatile fit across multiple setups: Compatible with a wide range of Mercury outboards and boat types.

FAQ

Q1: Which Mercury engines does the Mercury Trophy Sport 4-Blade Propeller fit?

It fits Mercury and Mariner 40–60 HP BigFoot/Command Thrust outboards and can also be used on select 25–60 HP models, including TwoStroke, FourStroke, SeaPro, and Marathon engines.

Q2: What makes this propeller different from other Mercury options?

The Trophy Sport features a four-blade stainless-steel design that provides faster planing, stronger lift, and better handling in tight or shallow water than standard three-blade models.

Q3: How do I know if this pitch or size is right for my boat?

The 10.625" diameter and 12" pitch offer quick lift, solid mid-range power, and efficient control — ideal for small to midsize flats or bay boats.

Q4: Can this prop be used in both saltwater and freshwater?

Yes. The polished stainless finish protects against corrosion and maintains performance in both environments.

Q5: What hub system does it use?

It includes the Mercury Flo-Torq Reflex Hub Kit (835257K12), designed to absorb shocks from impacts and protect your engine’s drivetrain.