Mercury – Outboard Service Repair Kit | 8/9.9HP Carbureted Series | OEM Components | 8M0181316

Overview

When you rely on a small outboard to get you across the bay, push you upriver, or guide you through a quiet morning of trolling, you want to know it will fire up without hesitation. That kind of confidence only comes from consistent care and using parts you can truly trust. The Mercury 8M0181316 Outboard Service Repair Kit brings together all the essentials to keep your 8hp or 9.9hp carbureted engine running strong, season after season. It gives you the peace of mind that your motor is protected, cooled, and tuned the way it should be, no matter how far you wander from the dock.

Key Features

• Complete OEM service kit for Mercury 8hp and 9.9hp carbureted outboards
• Includes fuel filter, impeller repair kit, thermostat, two spark plugs, gasket, seals and washer
• Engineered to Mercury Marine’s factory specifications for proper fit and performance
• Designed to restore cooling, ignition reliability and fuel system cleanliness
• All-in-one packaging makes routine maintenance simple and efficient

Engine & Boat Compatibility

• Fits Mercury 8hp carbureted outboards (serial No. 0R042475 & above)
• Fits Mercury 9.9hp carbureted outboards (serial No. 0R042475 & above)
• Ideal for dinghies, tenders, small fishing boats and lightweight utility boats
• Perfect for portable and auxiliary outboard applications

Performance & Practical Benefits

This Mercury Marine part is built to bring your small outboard back to its best. The impeller kit restores cooling flow, keeping temperatures steady during long idle periods or wide-open throttle runs. The redesigned fuel filter helps protect your carburetor from debris and water, improving throttle response and preventing sputtering. Fresh spark plugs sharpen ignition timing, making cold starts easier and operation smoother throughout the RPM range.

The included gaskets, seals and thermostat complete the package, ensuring your engine stays tight, leak-free and efficient. Each component is manufactured to the exact tolerances your engine was built around, which means fewer surprises, fewer adjustments and a more predictable service experience. You will feel the difference in smoother acceleration, steadier running, and a motor that simply works when you need it.

Why Buy OEM

Experienced boaters know that not all parts are created equal. Aftermarket kits may cut corners on materials, sizing or durability, which can lead to cooling failures, fuel leaks or premature wear. With this genuine Mercury Marine part, every component is tested to handle the heat, vibration and harsh marine environments your outboard faces daily.

OEM parts protect your investment, extend engine life and save money over time by preventing avoidable breakdowns. When you want your outboard to run right the first time—and keep running right—OEM is the only smart choice. It is the advice seasoned mechanics, charter captains and weekend anglers follow for a reason.

FAQ

Q1: Which engines does the 8M0181316 Service Kit fit?

It fits Mercury 8hp and 9.9hp carbureted outboards with serial numbers 0R042475 and above.

Q2: What makes this OEM kit better than aftermarket alternatives?

Each component meets Mercury Marine’s exact standards, ensuring reliable cooling, clean fuel delivery and correct ignition performance.

Q3: How do I confirm this is the correct kit for my engine?

Check your engine’s serial number and owner’s manual for the recommended Mercury Marine part number.

Q4: Can it be used in both freshwater and saltwater?

Yes—these components are engineered for durability and corrosion resistance in any environment.

Q5: Is the installation simple enough for most boat owners?

With common tools and your owner’s manual, routine maintenance is straightforward and manageable.