Mercury – Quicksilver 8M6001743 Air Injector Assembly | Direct Fuel Injection System | Marine-Grade Component | 8M6001743

Overview

Anyone who’s spent time running a 2-stroke Mercury outboard knows that when the engine breathes right, everything about the day feels easier. Power comes on smoothly, throttle response tightens up, and that unmistakable 2-stroke growl settles into a steady rhythm. The Quicksilver 8M6001743 Air Injector Assembly is built to keep that feeling alive. Designed specifically for high-output 135–300 horsepower Mercury and Mariner DFI engines, it helps ensure your fuel system stays crisp, efficient, and ready for whatever the water throws at you. Whether you’re pushing upriver toward a fishing spot or opening up across a wide stretch of bay, having the right injector in place gives you the confidence that your engine will respond exactly when you need it to.

Key Features

• Purpose-built air injector assembly for Mercury and Mariner 135–300hp 2-stroke DFI engines (2.5L and 3.0L)
• Compatible with JetDrive and SportJet power systems
• Precision-engineered to deliver the correct air-fuel mix required by DFI combustion
• Built from durable marine-rated materials designed for heat and vibration
• Direct OEM replacement for Quicksilver part number 8M6001743
• Straightforward installation with standard shop tools
• Manufactured to Mercury Marine’s stringent performance and quality standards

Engine & Boat Compatibility

This air injector assembly fits:

• 135–300hp Mercury and Mariner 2-stroke DFI outboards
• 2.5L and 3.0L engine platforms
• JetDrive and SportJet configurations
• Commonly found on bass boats, bay boats, jet boats, freshwater and coastal fishing boats, and performance-minded rigs

If your engine is a DFI 2-stroke within this horsepower range, this is the exact injector Mercury designed for it.

Performance & Practical Benefits

The right air injector doesn’t just help the engine run — it helps it run the way it was meant to. With the 8M6001743 installed, you’ll notice:

• Smoother acceleration thanks to consistent, well-metered airflow
• Improved throttle response, especially at mid-range where DFI engines shine
• More stable idle, reducing surging or roughness at the dock
• Cleaner combustion, which can lead to better fuel efficiency and reduced smoke
• Reliable performance in harsh environments, including long saltwater days and high-heat engine compartments
• A tighter, more controlled feel across the whole power curve

When your fuel and air systems are working in sync, the engine sounds better, runs better, and gives you more confidence every time you push the throttle forward.

Why Buy OEM

With air-fuel components, precision matters. Genuine Quicksilver and Mercury parts offer:

• Exact fitment engineered for your DFI platform
• Materials designed for marine heat, vibration, and corrosion
• Long-term performance that protects pistons, injectors, and internal components
• Easier maintenance and predictable replacement intervals
• No guesswork — just components built to work the first time and every time

Seasoned boaters know that shortcuts in the fuel system rarely pay off. OEM keeps things simple, reliable, and long-lasting.

FAQ Section

Q1: Which engines does the 8M6001743 Air Injector Assembly fit?

It fits 135–300hp Mercury and Mariner 2-stroke DFI engines, including JetDrive and SportJet models.

Q2: How is this different from aftermarket injectors?

Quicksilver OEM injectors match Mercury’s exact airflow and pressure specs — critical in DFI engines where precision matters.

Q3: How do I confirm this is my correct replacement?

Check your engine’s serial number and model details in your parts or service manual. DFI systems require engine-specific injectors.

Q4: Can this be used in saltwater and freshwater?

Yes. It’s engineered for both environments and built to resist corrosion and heat.

Q5: Is installation straightforward?

For most owners with basic mechanical skills, yes. Follow your service manual for torque specs and procedural steps.