Mercury – Starter or Power Trim Solenoid | Electrical System | Stepped Mounting Plate | Part Number 8M0185622

Overview

Any boater who’s spent enough time on the water knows the value of a dependable start and a responsive trim system. Those simple moments — tapping the trim to lift the bow or turning the key before heading out at first light — set the tone for the entire day. That’s why this Mercury Marine part matters. It’s built to deliver that steady, no-nonsense reliability you can feel, the kind that lets you focus on the water ahead instead of worrying about what’s happening under the cowling.

Key Features

• Supports both starter and power trim systems for a wide range of Mercury and Mariner outboards.
• Stepped mounting plate design for stable and secure installation.
• Engineered for marine-grade durability and long-term reliability.
• Built to Mercury Marine part number 8M0185622 specifications.
• Designed to hold up under vibration, heat, and moisture exposure.

Engine & Boat Compatibility

• Fits numerous Mercury and Mariner outboard models across varying horsepower ranges
• Compatible with many MerCruiser sterndrive systems
• Ideal for pontoons, bass boats, runabouts, aluminum fishing rigs, and family cruising boats
• Suitable for any setup requiring a stepped-mount starter or trim solenoid

Performance & Practical Benefits

A good solenoid gives your boat a certain confidence you can feel the moment you fire up the engine. With this one, the response is tight and smooth — a clean electrical connection that wakes the motor without hesitation. When used for power trim, the motion feels steady and controlled, whether you’re lifting the motor through shallow water or adjusting the running angle in changing chop.

The stepped mounting plate adds real-world stability, helping the solenoid stay secure even when the water gets rough or the engine is working hard. Once installed, the fit feels natural and exact, avoiding the frustration that often comes with mismatched aftermarket parts. Long-term, you’ll appreciate how well it handles corrosion, vibration, and daily wear — it simply keeps doing its job season after season.

Why Buy OEM

There’s a certain peace of mind that comes from sticking with genuine Mercury Marine parts. They’re designed with the same engineering philosophy as the engines themselves — precise fit, dependable performance, and long-term durability. Aftermarket versions might look similar, but internal differences can cause unreliable starts, weak trim response, or premature wear.

Using the correct part number ensures everything lines up the way it should, which protects your electrical system and saves you time and money down the road. It’s the kind of practical advice you’d hear from someone who’s spent years around docks and ramps: go with OEM, and your equipment will treat you right.

FAQ

Q1: Which engines does the Quicksilver 8M0185622 Solenoid fit?

It fits a wide range of Mercury and Mariner outboards, along with many MerCruiser sterndrive systems.

Q2: What makes this different from aftermarket options?

Its stepped mounting plate, marine-grade components, and Mercury-spec engineering give it a cleaner fit and more dependable performance.

Q3: How do I know if it’s the correct replacement?

Check your current solenoid’s part number or verify compatibility in your owner’s manual. If it calls for 8M0185622, this is the right match.

Q4: Can it be used in both saltwater and freshwater?

Yes. It’s built for the marine environment and performs reliably in both.

Q5: Is installation straightforward?

Most boaters find it easy thanks to the stable mounting plate and accurate fitment.