Mercury – Engine Starter | Yamaha PWC & Sportboats | Marine-Ready | 8M6007431

Overview

If you ride personal watercraft or run Yamaha sport boats, you already know how much your day depends on that first push of the starter. It sets the tone—whether you’re gearing up for a calm sunrise ride across glassy water or firing up for a full day of towing friends through wakes and chop. The Quicksilver 8M6007431 Engine Starter is built for those moments when you want your engine to leap to life without hesitation. It feels steady, confident, and ready, the way a well-kept machine should.

There’s a sort of peace that comes with knowing your starter will respond every single time. No clicking, no grinding—just a clean, strong turn that gets you out on the water instead of stuck on the trailer.

Key Features

• Designed specifically for Yamaha PWC and sport boat models
• Permanent magnet direct drive design for reliable, torque-rich starts
• High-temperature epoxy armature protects wiring and resists marine corrosion
• 90/10 copper bushings or heavy-duty needle bearings for extended service life
• Built to meet Marine SAEJ1171 ignition protection standards
• Counter-clockwise rotation, 12-volt, 9-spline configuration

Engine & Boat Compatibility

The 8M6007431 starter fits a wide range of Yamaha models, including:

• 2002–2005 FX1000 WaveRunner (998cc)
• 2004–2005 FX1100 WaveRunner (1100cc)
• 2003–2005 Yamaha SRT1000
• 2005 Yamaha SRT1100
• 2009–2014 Yamaha Sport Boats powered by select marine engines

Ideal for:

• Personal watercraft riders
• Wake and tow sports enthusiasts
• Recreational family sport boats
• Owners wanting a dependable OEM-level replacement

Performance & Practical Benefits

When you hit the starter button, you’ll feel the difference immediately. The motor engages with a tight, sure-footed motion, sending your engine spinning smoothly instead of sluggishly. That clean engagement translates into easier cold-starts, far fewer “try again” moments, and greater confidence when you’re launching early in the morning or restarting after a long drift.

The corrosion-resistant construction stands up to wet-footwells, spray, heat, and storage humidity—exactly the conditions PWCs and sport boats live in. Its internal components are sealed and reinforced to keep debris, moisture, and vibration from cutting the starter’s life short. The result? A motor that keeps performing season after season with almost no fuss from you.

And because it’s engineered to OEM specifications, installation is straightforward. Bolt it in, connect your wiring, and you’re ready to get back on the water.

Why Buy OEM

Choosing a Mercury Marine part means choosing reliability you can feel every time you start your engine.

• Exact-fit compatibility for Yamaha WaveRunners and sport boats
• Better long-term durability compared to generic aftermarket units
• Built to withstand harsh marine conditions without premature failure
• Saves time, reduces troubleshooting, and prevents repeat replacements
• Backed by Mercury’s long history of marine-grade engineering

If you want a starter that simply works—no drama—OEM is the way to go.

FAQ

Q1: Which engines does the 8M6007431 fit?

It fits select Yamaha WaveRunner models, SRT models, and Yamaha sport boats from 2002–2014.

Q2: What makes this starter better than aftermarket options?

Its materials, torque output, corrosion resistance, and reliability exceed typical aftermarket offerings.

Q3: How do I confirm compatibility?

Check your Yamaha model year and engine displacement against the compatibility list above.

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

Absolutely—its marine-rated materials handle both environments well.

Q5: Is installation easy?

Most owners with basic mechanical experience can install it thanks to OEM-matched sizing and wiring.