Mercury – Quicksilver 8M6007333 Engine Starter | United Technologies Series | Marine-Grade Construction | 8M6007333

Overview

There’s a certain kind of confidence you feel when your engine fires up instantly—the kind that settles your mind before a long run across open water or a quiet cruise back into the marina. That moment depends on a starter you trust, one that turns over strong every single time. The Quicksilver 8M6007333 Engine Starter is built for boaters who know the value of reliability because they’ve lived through the moments when it mattered most. It’s steady, proven, and ready to work whenever you turn the key.

Key Features

• Designed for select 75–120 horsepower outboards
• 12-volt permanent magnet direct-drive starter
• Counter-clockwise rotation for correct engine engagement
• 9-tooth pinion gear engineered for smooth meshing and strong cranking torque
• High-temperature epoxy armatures protect internal wiring from heat and corrosion
• Built with 90/10 copper bushings or heavy-duty needle bearings for long service life
• Meets Marine SAEJ1171 ignition protection standards
• Manufactured to Mercury Marine part number 8M6007333 OEM specifications

Engine & Boat Compatibility

• Fits select Mercury and Mariner outboards in the 75–120 horsepower range
• Replaces OEM starters including:
  • J&N 410-21027
  • Lester 5734
  • United Technologies 56676, 67132, and others
• Ideal for a wide variety of boats, such as:
  • Aluminum fishing boats
  • Mid-size center consoles
  • Flats boats
  • Pontoon and family-cruising setups

Performance & Practical Benefits

What sets this starter apart is how it feels in real-world use. Turn the key and you’ll notice the immediate, tight engagement—no hesitation, no sluggish movement. The permanent magnet design delivers more torque with less draw, giving your engine a strong, steady crank even after long days on the water.

The high-temperature epoxy armature resists the kind of heat that builds under cowls during summer runs, while the corrosion-resistant construction keeps its internals protected from humidity and salt-air exposure. That means fewer worries about early wear or inconsistent performance. The internal bushings and bearings help everything spin smoothly, reducing friction, improving longevity, and keeping the starter quiet and balanced.

Installation is straightforward for most boaters familiar with their rig. Once mounted, you’ll immediately feel the upgrade—clean rotation, crisp engagement, and the assurance that your engine will fire when you need it.

Why Buy OEM

With something as crucial as a starter, cutting corners just isn’t worth it. An OEM-grade Quicksilver unit is built specifically for these engines—not adapted, not approximated, but engineered to match every spec Mercury requires. Aftermarket versions may look similar, but they often fall short under marine conditions or fail early due to weaker materials.

Choosing the Quicksilver 8M6007333 means fewer headaches, better long-term value, and a part that fits right the first time. It’s the same advice any seasoned boater would offer: when reliability matters, stick with OEM.

FAQ

Q1: Which engines does this starter fit?

It’s designed for select Mercury and Mariner outboards in the 75–120 horsepower range. Check your serial number to confirm.

Q2: What makes this starter better than aftermarket options?

Its internal components, torque output, and ignition-safe design are all built to Mercury’s OEM standards, giving you better reliability over time.

Q3: How do I confirm this is the right replacement?

Match your existing starter’s part number or check compatibility in your service manual.

Q4: Can it be used in saltwater and freshwater?

Yes—its marine-grade construction handles both environments without issue.

Q5: Is installation simple?

Most mechanically comfortable boaters can install it with basic tools, as long as they follow proper service procedures.