Mercury – Carburetor Gasket Set | Fuel System Component | Composite Gasket Material | 9651

Overview

Any boater who’s spent time with an older two-stroke knows that the carburetor is the heart of the engine’s personality. When the gaskets start to give out, you can feel it—rough idle, a bit of fuel seepage, maybe a sputter when you try to push the throttle forward. That’s when a fresh, dependable gasket set makes all the difference. The Quicksilver 9651 Carburetor Gasket Set brings your 40hp Mercury or Mariner two-stroke back to the crisp, responsive feel you remember. It’s a small job that delivers big peace of mind, whether you’re cruising toward open water at dawn or easing up to a dock after a long day.

Key Features

• Complete carburetor gasket set for restoring a clean, sealed fuel system
• Designed for select 40hp Mercury and Mariner 2-stroke outboards
• Durable gasket materials crafted to Mercury Marine OEM standards
• Helps eliminate fuel leaks, air intrusion, and inconsistent metering
• Straightforward installation with common shop tools

Engine & Boat Compatibility

This Mercury Marine part is designed for:

• 40hp Mercury 2-stroke outboards
• 40hp Mariner 2-stroke outboards

Commonly used on:

• Light fishing boats and aluminum skiffs
• Small family runabouts
• Utility boats
• Older two-stroke-powered pontoons

As always, double-check fitment with your owner’s manual or engine serial number.

Performance & Practical Benefits

A well-sealed carburetor doesn’t just help the engine run—it changes the way the whole boat feels. With fresh gaskets, you’ll notice:

• A tight, predictable idle that doesn’t wander
• Steady throttle response, especially in the low-to-mid range where older outboards tend to show their age
• Improved fuel delivery with fewer flare-ups or hesitation
• A cleaner engine compartment with reduced leakage and vapor smell
• Easier cold starts, thanks to consistent vacuum and metering

Every piece in this set is cut to maintain the proper fuel and air pathways. When you button everything back up, it feels like your engine can finally breathe the way it’s supposed to.

Why Buy OEM

When it comes to sealing surfaces in a marine carburetor, precision is everything. Using the wrong thickness or an off-brand gasket can lead to vacuum leaks, poor fuel economy, or even damage over time.

Choosing OEM gives you:

• Exact fit and alignment, every time
• Materials that withstand marine vibrations, heat cycles, and ethanol-blended fuel
• Long-term reliability designed around your engine’s original tolerances
• Less guesswork—everything fits the way the factory intended
• Confidence that you’re protecting your engine rather than taking shortcuts

For the cost, it’s one of the smartest preventative maintenance steps you’ll ever take.

FAQ Section

Q1: Which engines does the 9651 Carburetor Gasket Set fit?

It fits select 40hp Mercury and Mariner 2-stroke outboards. Check your engine’s serial number for confirmation.

Q2: What makes this OEM set better than aftermarket options?

The materials, thickness, and cut profiles match Mercury’s factory specifications, ensuring proper sealing and long-term durability.

Q3: How can I be sure this is the correct replacement for my carburetor?

Match your model and serial number with your parts manual or owner’s manual for exact fitment.

Q4: Can this gasket set be used in both saltwater and freshwater environments?

Yes—its materials are engineered for all marine conditions.

Q5: Is installation straightforward?

Very. Most boat owners with basic tools can handle the job during a routine carburetor cleaning or rebuild.