Mercury – Quicksilver Engine Starter | PWC Starting Series | Durable Marine Construction | 8M6007437

Overview

There is a familiar thrill that comes with starting up an older personal watercraft — that split second when you hit the button and wait for the engine to wake. When the starter is dependable, that moment becomes effortless, almost comforting. You hear the engine catch, feel the hull shift beneath you, and suddenly the whole day opens up with possibility. The Mercury Marine part number 8M6007437 Quicksilver Engine Starter gives you that confidence every time. It is built for riders who want reliability, not surprises, whether they are reliving memories on a vintage machine or keeping a classic PWC alive for another season.

Key Features

• Twelve-volt direct drive starter designed for Yamaha WJ500 and WR500 personal watercraft
• Counter clockwise rotation with an eleven-tooth gear for proper engagement
• Permanent magnet construction for stronger torque and dependable starting power
• High temperature epoxy armature to protect internal wiring from moisture and corrosion
• Built with ninety–ten copper bushings or heavy duty needle bearings for smooth, long-lasting operation
• Meets Marine SAE J1171 certification standards
• Part Number: 8M6007437

Engine & Boat Compatibility

• Designed for Yamaha personal watercraft manufactured between nineteen eighty-seven and nineteen ninety-three
• Compatible with WJ500 and WR500 models equipped with matching starter specifications
• Ideal for restoring older PWCs, maintaining rental fleets, or keeping vintage machines in active use
• Suitable for inland lakes, rivers, bays, and nearshore coastal riding

Performance & Practical Benefits

This starter shines in how it feels in real use. Once installed, the cranking action becomes smooth and confident, without the sluggish or inconsistent spin that often plagues worn-out units. The permanent magnet design delivers reliable torque even when the engine has been sitting or the temperature dips. You will notice that the engagement feels tight and sure, without grinding or hesitation.

The epoxy-sealed armature offers meaningful protection in marine environments. Older PWCs often deal with damp storage spaces, splash-heavy riding, or long periods between uses — all situations where corrosion can creep in. This starter is built to resist those conditions, giving you longer service life and fewer issues down the road.

The bearings or copper bushings create a steady rotation that makes every start feel controlled. For riders who enjoy the nostalgia of these classic machines, that consistency is essential. A dependable starter means less tinkering at the ramp and more time carving through the water.

Why Buy OEM

Choosing an OEM Mercury Marine part is about protecting your time and your machine. With this starter, you get proper fitment, reliable internal components, and testing that mirrors real-world conditions. Aftermarket versions may look similar on paper, but they often lack the durability or torque output needed for older PWCs. An OEM starter saves money in the long run by reducing failures, preventing electrical strain, and ensuring your engine fires cleanly every ride. If you want something that installs right the first time and keeps working season after season, OEM is the smart and straightforward choice.

FAQ

Q1: Which systems does the Quicksilver Engine Starter fit?

It fits Yamaha WJ500 and WR500 personal watercraft from nineteen eighty-seven through nineteen ninety-three.

Q2: What makes this starter different from aftermarket units?

The epoxy-protected armature, high-quality bushings, and OEM torque design offer better reliability and longevity.

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

Match your model years and specifications to part number 8M6007437 or check your owner’s manual.

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

Yes, it is engineered for both environments.

Q5: Is installation simple for most owners?

Most PWC owners with basic mechanical skills can install it using common tools.