Mercury – Quicksilver 8M6007423 Engine Starter | Yamaha Small Outboard Series | Marine-Grade Finish | 8M6007423

Overview

When you spend enough mornings on the water, you learn to appreciate the small things—like an engine that fires up without drama. That steady, confident crank sets the tone for the whole day, whether you’re heading out before sunrise or motoring back after a glass-calm afternoon. The Quicksilver 8M6007423 Starter brings that familiar sense of reliability to your 9.9–15 horsepower Yamaha outboard, giving you the reassurance that when you turn the key, the engine will answer right away. It’s a simple piece of hardware, but the peace of mind it brings feels anything but small.

Key Features

• Designed for dependable starting performance on Yamaha 9.9–15 horsepower outboards
• Permanent magnet direct-drive construction
• Counter-clockwise rotation
• Twelve-volt output with a nine-tooth drive gear
• Built with marine-grade materials for long-term corrosion resistance
• Internal components engineered to handle vibration and moisture in real-world use

Engine & Boat Compatibility

• Fits Yamaha 9.9hp to 15hp outboard models
• Designed for engines using 66M-series starter assemblies
• Common on small skiffs, dinghies, jon boats, tenders, portable fishing rigs, and lightweight utility boats
• Ideal for both tiller-handle and remote-steer setups

Performance & Practical Benefits

A good starter isn’t something you think about often—because you shouldn’t have to. The 8M6007423 delivers a strong, smooth crank that feels tight and assured each time you turn the key. Even after long storage periods or a week of damp weather, it responds quickly and cleanly. That kind of reliability matters when you’re pushing off from shore with gear in the boat and a plan for the day.

Its direct-drive design minimizes internal friction while the permanent magnet motor provides consistent torque. You’ll notice how steady it feels, with none of the weak or uneven engagement you sometimes get from tired aftermarket units. The internals are protected with epoxy coatings and durable bushings, making it well suited for the vibration, spray, and constant movement that small outboards experience.

Installation is straightforward, too. The mounting points line up properly, the wiring fits the harness you already have, and everything simply falls into place the way it should. That’s the benefit of choosing a starter made to match Yamaha’s engineering—not a generic part trying to be “close enough.”

Why Buy OEM

Choosing a genuine Quicksilver starter means choosing less frustration in the long run. OEM-grade components are built to the same standards Yamaha relies on, which means fewer surprises out on the water. The materials last longer, the electrical performance stays steadier, and the fitment is precise. It’s also a cost-effective choice over time, since a dependable starter protects your battery, ignition system, and other electrical components from unnecessary strain.

If you’re the type who values reliability above shortcuts, OEM is the route you’ll always feel best about.

FAQ

Q1: Which engines does this starter fit?

It’s designed for Yamaha 9.9–15 horsepower outboards, especially models using 66M-series starters.

Q2: How is this different from aftermarket starters?

It offers better torque, tighter fitment, and marine-grade durability that aftermarket versions often lack.

Q3: How can I be sure it’s the right replacement?

Match the part number 8M6007423 or confirm compatibility with your engine’s service manual.

Q4: Can it be used in saltwater?

Yes—its corrosion-resistant construction performs well in both saltwater and freshwater.

Q5: Is installation easy for most boat owners?

Most owners find the install simple with basic tools and clear reference to the manual.