Mercury – Engine Starter | Denso Series | 12-Volt Marine | 8M6007334

Overview

There’s a certain relief that washes over you when you hit the starter and your engine comes alive without hesitation. It’s a small moment, but it sets the tone for the entire day on the water. That quiet confidence — knowing your gear is built to handle long runs, heavy loads, and unpredictable weather — is what makes a good starter feel like an old friend. The Quicksilver 8M6007334 Engine Starter is built for that kind of trust, giving you steady starts whether you’re easing away from the slip or pushing off into a long channel at dawn.

Key Features

• Designed for use on select Hino and John Deere engines.
• Direct drive construction for consistent starting performance.
• 12-volt system engineered for reliable ignition power.
• Clockwise rotation, 11-tooth Denso-pattern design.
• Built with high-temperature epoxy armatures for added durability.
• Heavy-duty needle bearings / 90–10 copper bushings for long service life.
• Meets Marine SAEJ1171 requirements for ignition protection.

Engine & Boat Compatibility

• Fits a range of John Deere industrial and marine-based engines.
• Compatible with multiple Hino powerheads used in medium-duty marine setups.
• Commonly found in boats such as:
  • Commercial workboats
  • Mid-size cruisers
  • Trawlers
  • Tug-style vessels and utility craft
• Ideal for operators who demand reliable starts in varied marine environments

Performance & Practical Benefits

You can feel the difference when a starter is built right. This unit engages with a smooth, positive bite, without the chatter or hesitation you get from cheaper aftermarket parts. The gear mesh feels tight and deliberate. When you turn the key, it spins the engine with a confident, steady pull that inspires trust — even when the weather is cold or the engine hasn’t run in weeks.

Every component is selected for longevity in harsh marine conditions. The epoxy-sealed armatures resist moisture intrusion. Bearings stay smooth through heavy use. The permanent magnet design gives the starter more torque per pound, which means less strain and more reliable cranking. It’s the kind of part you install once and forget about, because it simply works.

Why Buy OEM

If you run John Deere or Hino-based marine engines, the difference between a properly matched starter and a “universal” aftermarket model is night and day. OEM-grade Quicksilver components are designed to fit without modification, line up properly with factory flywheels, and deliver the cranking rhythm the engine was engineered for.

You’ll save money in the long run by choosing a part that protects your engine’s electrical system and prevents hard-start damage. It’s the practical choice — the one seasoned boaters make because they’ve learned quality matters.

FAQ

Q1: Which engines does this fit?

It’s designed for select Hino and John Deere engines using Denso-style starters.

Q2: What makes it better than aftermarket?

Better torque, better moisture resistance, and precise factory-matched fitment.

Q3: How do I confirm compatibility?

Match your engine’s starter number or check the fitment notes in your service manual.

Q4: Is it suitable for saltwater?

Yes — it’s built to marine ignition-protected standards.

Q5: Is installation straightforward?

Most owners with basic mechanical experience can install it with normal tools.