Mercury – Power Trim Relay | Electrical & Trim System | Marine-Grade | 8M0207773

Overview

If you’ve spent any time running shallow channels at sunrise or easing your way onto a trailer in a stiff crosswind, you know just how much you rely on your trim system. When it works, you barely think about it—you just feel the boat respond the way it should. That trust is something you don’t gamble with. The Mercury Power Trim Relay 8M0207773 gives you that same steady confidence every time you tap the switch, making sure your 115-horsepower FourStroke responds instantly and smoothly.

Key Features

• Controls the power trim system on Mercury and Mariner one hundred fifteen horsepower four-stroke outboards
• Marine-grade internal components built for vibration, heat, and moisture resistance
• Sealed housing protects electrical contacts from corrosion
• Designed for stable, consistent relay response even under heavy load
• Manufactured to exact Mercury Marine part specifications for dependable performance

Engine & Boat Compatibility

This Mercury Marine part fits:

• Mercury one hundred fifteen horsepower four-stroke outboards
• Mariner one hundred fifteen horsepower four-stroke outboards

Common boats that rely on this relay:

• Aluminum fishing rigs
• Bass boats
• Nearshore center consoles
• Lightweight pontoons
• Skiffs and utility boats

Performance & Practical Benefits

A good trim relay is one of those parts that simply has to work every single time you touch the switch. With the 8M0207773, trim movement feels tight and responsive—no hesitation, no weak clicking, no guessing about whether the motor will lift when you need it. When you’re trimming up to clear a sandbar or trimming down to dig into a windy chop, that reliability feels like peace of mind.

The sealed, marine-ready build holds up to everything the water throws at it—salt spray, humidity, long hours in the sun, even the constant vibration of running a four-stroke at wide-open throttle. The relay’s contacts stay clean, the response stays smooth, and installation is straightforward. If you’ve ever fought with cheaper aftermarket relays, you’ll notice how much more solid and secure this one feels right away.

Why Buy OEM

Genuine Mercury Marine electrical parts are designed around the needs of the engine—not just the voltage rating on the box. With an OEM relay, you’re getting calibrated response timing, proper amperage handling, and materials that hold up far longer than generic versions. Aftermarket relays can stick, click inconsistently, or fail early, often showing their weakness at the worst possible moment.

Buying OEM means you install it once, trust it completely, and get on with your day on the water. It’s the smarter, long-term choice for anyone who values reliability over shortcuts.

FAQ

Q1: Which engines does the Power Trim Relay 8M0207773 fit?

It fits Mercury and Mariner one hundred fifteen horsepower four-stroke outboards.

Q2: What sets this relay apart from aftermarket options?

The build quality, sealed design, and exact electrical calibration are engineered specifically for Mercury systems, giving it far greater durability and consistency.

Q3: How do I know this is the right relay for my motor?

Match the part number to your manual or the relay currently installed. If you’re running a one hundred fifteen horsepower four-stroke, this is usually the correct replacement.

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

Yes. The sealed housing and corrosion-resistant materials are designed for use in all marine environments.

Q5: Is installation straightforward?

Most boaters familiar with basic electrical connections can replace this relay easily. It’s typically a direct plug-and-mount swap.

• Supersessions
  828151, 882751A1, 882751A2, 8M0207773, 8M0207773