Mercury – Quicksilver Q4 Propeller | 14.6” Diameter x 19” Pitch | Left-Hand Rotation | 4 Blades | Stainless Steel | Polished Finish | 8M0103529

Overview

You know that moment when the throttle moves forward, and your boat doesn’t just move —it launches? The bow lifts, the engine hums, and everything feels perfectly balanced between power and control. That’s what the Quicksilver Q4 Stainless Steel Propeller (Part Number 8M0103529) delivers every single time. Designed for boaters who want that responsive lift and steady grip, this prop makes the difference between just another ride and one that feels effortlessly in tune with the water. It’s smooth, fast, and built for people who love to drive their boat — not just ride it.

Key Features

• Diameter and Pitch: 14.6” Diameter x 19” Pitch
• Rotation: Left-Hand
• Blade Count: Four blades for exceptional lift, control, and thrust
• Material: Marine-grade stainless steel for long-lasting durability and strength
• Finish: High-polished stainless finish for efficient water flow and a clean look
• Hub System: Flo-Torq compatible hub system (sold separately) for versatile installation
• Design Details: Aggressive blade geometry designed for rapid acceleration, strong midrange pull, and high top-end speed

Engine & Boat Compatibility

• Fits Mercury and Mariner 90–300 HP outboards
• Compatible with MerCruiser Alpha and Bravo sterndrives
• Performs beautifully on bass boats, center consoles, multi-species boats, fish and ski models, bay boats, and pontoons
• Ideal for boaters who want consistent lift, quick planing, and tight, predictable handling across a range of water conditions

Performance Benefits

• Powerful holeshot: The Q4’s four-blade setup bites the water with purpose, giving your boat the lift and thrust it needs to plane fast and clean. You’ll feel the difference right away — that confident surge when you push forward on the throttle.
• Smooth, stable handling: Even in choppy conditions or tight turns, this prop stays locked in. It grips evenly through corners, maintaining a steady and predictable feel at all speeds.
• Unmatched midrange performance: Between takeoff and cruising speed, the Q4 delivers its best work. It holds water beautifully, giving you crisp throttle response and a smooth, planted ride that doesn’t fade under pressure.
• Top-end efficiency: Despite its four-blade configuration, the Q4’s hydrodynamic design allows it to match — and often exceed — the speed of leading three-blade props.
• Built for endurance: Crafted from tough stainless steel, it resists corrosion, impact, and fatigue, ensuring reliable performance season after season with minimal upkeep.

Why is this prop is a strong choice vs. alternatives?

The Quicksilver Q4 Stainless Steel Propeller proves you can have it all — the acceleration and grip of a four-blade, paired with the top-end speed of a high-performance three-blade. If you’ve been running a standard setup and want a noticeable boost in response, lift, and control, this prop delivers without compromise.

As part of Mercury’s trusted OEM lineup, the Q4 is engineered with the same precision and testing standards used for Mercury engines themselves. It’s versatile enough to fit a wide variety of boats and powerful enough to handle demanding conditions. Whether you’re chasing fish at dawn, cruising with family, or running open water at full speed, the Q4 gives you the kind of confident, connected performance that keeps you in command.

FAQ

Q1: Which Mercury engines does the Quicksilver Q4 Propeller fit?

It’s designed for Mercury and Mariner 90–300 HP outboards and MerCruiser Alpha and Bravo sterndrives.

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

The Q4 combines the control and lift of a four-blade propeller with the top-end speed typically found in three-blade designs, offering both smooth handling and high-speed performance.

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

If your current prop allows your engine to reach its recommended RPM range using a 19” pitch, the Q4 should be an ideal fit. Check your owner’s manual or consult a Mercury dealer for confirmation.

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

Yes. Its stainless steel construction and polished finish make it equally capable in both environments. Just rinse it with freshwater after saltwater use to maintain its shine and longevity.

Q5: What hub system does it use?

The Q4 is Flo-Torq compatible, allowing simple installation and flexibility across multiple Mercury and MerCruiser engine configurations.