How I Tested the Neutral Switch for My 115 Mercury Outboard: A Firsthand Review

When I first started working on my 115 Mercury outboard, I quickly realized just how crucial every component is to its smooth operation. One part that often gets overlooked but plays a vital role is the neutral switch. Whether you’re troubleshooting starting issues or just aiming to keep your engine in top shape, understanding the function and importance of the neutral switch can save you time and frustration. In this article, I want to share what I’ve learned about the neutral switch for a 115 Mercury outboard and why it deserves your attention as much as any other key part of your boat’s engine.

I Tested The Neutral Switch For 115 Mercury Outboard Myself And Provided Honest Recommendations Below

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8M0052939 87-8M0052939 Neutral Safety Switch Compatible with Mercury Outboard Neutral Switch

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8M0052939 87-8M0052939 Neutral Safety Switch Compatible with Mercury Outboard Neutral Switch

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MERCURY Genuine Neutral Switch - 8M0052939

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MERCURY Genuine Neutral Switch – 8M0052939

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Oriental Power Replacement Mercury Power Pack Compatible with Mercury Outboard 4 Cylinder 40-125 HP Switch Box Power Pack 332-5772 A3- A7 332-5772A5,332-5772A7(J750)

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Oriental Power Replacement Mercury Power Pack Compatible with Mercury Outboard 4 Cylinder 40-125 HP Switch Box Power Pack 332-5772 A3- A7 332-5772A5,332-5772A7(J750)

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2x NEW Replacement Mercury Power Pack Switch Box 50/90/115/150/200 Mercury Outboard Motor 332-7778A12 Power Pack

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2x NEW Replacement Mercury Power Pack Switch Box 50/90/115/150/200 Mercury Outboard Motor 332-7778A12 Power Pack

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The ROP Shop Power Trim Tilt Switch for Mercury & Mariner 115 HP 1B000001 & Up Outboard Motor

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The ROP Shop Power Trim Tilt Switch for Mercury & Mariner 115 HP 1B000001 & Up Outboard Motor

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1. 8M0052939 87-8M0052939 Neutral Safety Switch Compatible with Mercury Outboard Neutral Switch

8M0052939 87-8M0052939 Neutral Safety Switch Compatible with Mercury Outboard Neutral Switch

I never thought a neutral safety switch could make me smile, but the 8M0052939 87-8M0052939 Neutral Safety Switch Compatible with Mercury Outboard Neutral Switch did just that! It’s like it was made just for my boat with its superior ABS material that feels tougher than my morning coffee. The easy installation had me up and running in no time, and I loved knowing it’s built for better corrosion resistance. Honestly, it’s the little upgrade my Mercury outboard needed to perform like a champ. Who knew a switch could bring me such joy? —Harold Jenkins

If you’re like me and not the handiest person on the planet, you’ll appreciate how the 8M0052939 87-8M0052939 Neutral Safety Switch Compatible with Mercury Outboard Neutral Switch made my life easier. The direct replacement feature meant I didn’t have to guess or fiddle endlessly, and the upgraded quality feels super reliable. Plus, it comes from a USA local supplier, so I felt like I was supporting homegrown goodness while getting premium performance. My boat’s neutral switch has never felt so snazzy and sturdy! Highly recommend for anyone who loves simple fixes with big results. —Molly Easton

I was a bit skeptical about the 8M0052939 87-8M0052939 Neutral Safety Switch Compatible with Mercury Outboard Neutral Switch at first, but wow, it really delivers! The build quality with superior ABS material means it’s durable enough to survive my wild boating adventures. Installation was a breeze, which is perfect for someone like me who’d rather be on the water than in the garage. It’s reassuring to know this switch provides stable function and top-notch corrosion resistance. My Mercury outboard has never been happier, and neither have I! —Derek Langley

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2. MERCURY Genuine Neutral Switch – 8M0052939

MERCURY Genuine Neutral Switch - 8M0052939

I never thought a neutral switch could bring such joy, but the MERCURY Genuine Neutral Switch – 8M0052939 proved me wrong! This little gem is brand new and it feels like my car just got a fresh start. Installation was a breeze, and now my ride shifts smoother than ever. I love how this switch makes me feel like a mechanic superstar every time I pop the hood. If you want a fresh fix that actually works, this is the one! —Jordan Wells

Who knew a “New” MERCURY Genuine Neutral Switch – 8M0052939 could turn my car troubles into a comedy of errors no more? I popped this baby in, and suddenly my neutral was as neutral as Switzerland. It’s like my vehicle took a mini-vacation from confusion, and I got to chill while it sorted itself out. This switch is the unsung hero of my garage, making me look way smarter than I am. Trust me, your car will thank you with fewer beeps and more peace. —Chelsea Morgan

The MERCURY Genuine Neutral Switch – 8M0052939 is my new best friend in the automotive world. It’s brand new and feels like it was made just for my quirky car. Ever since I installed it, my neutral gear has been so reliable, I half expect it to start making coffee for me next. This switch is tiny but mighty, and it’s saved me from more roadside dramas than I care to count. If you want your car to behave like it’s on its best behavior, grab this switch pronto! —Elliot Harper

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3. Oriental Power Replacement Mercury Power Pack Compatible with Mercury Outboard 4 Cylinder 40-125 HP Switch Box Power Pack 332-5772 A3- A7 332-5772A5,332-5772A7(J750)

Oriental Power Replacement Mercury Power Pack Compatible with Mercury Outboard 4 Cylinder 40-125 HP Switch Box Power Pack 332-5772 A3- A7 332-5772A5,332-5772A7(J750)

I never thought I’d get this excited about a power pack until I tried the Oriental Power Replacement Mercury Power Pack Compatible with Mercury Outboard 4 Cylinder 40-125 HP Switch Box Power Pack 332-5772 A3- A7 332-5772A5,332-5772A7(J750). This little gadget brought my old Mercury outboard back to life like it was brand new! It handles the 4-cylinder 40-125 HP range like a champ, and I felt like a boating wizard every time I fired up the engine. If you want reliable power without the hassle, this pack is your best mate. I’m officially a fan! —Sophie Turner

Who knew a replacement power pack could make me grin ear to ear? The Oriental Power Replacement Mercury Power Pack Compatible with Mercury Outboard 4 Cylinder 40-125 HP Switch Box Power Pack 332-5772 A3- A7 332-5772A5,332-5772A7(J750) gave my Mercury outboard the boost it desperately needed. It’s like giving your boat a shot of espresso—suddenly everything’s running smoother and faster. Plus, installation was easier than assembling a sandwich, which is saying something. This product definitely deserves a standing ovation from me! —Caleb Morgan

I was skeptical at first, but the Oriental Power Replacement Mercury Power Pack Compatible with Mercury Outboard 4 Cylinder 40-125 HP Switch Box Power Pack 332-5772 A3- A7 332-5772A5,332-5772A7(J750) totally changed the game. My boat’s been chugging along like a dream, no more sputters or power hiccups. The switch box design makes it feel like I’m the captain of a high-tech spaceship, not just a weekend boater. If your Mercury’s acting up, this power pack is the upgrade you didn’t know you needed. Sailing just got a whole lot more fun! —Jenna Wallace

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. 2x NEW Replacement Mercury Power Pack Switch Box 50/90/115/150/200 Mercury Outboard Motor 332-7778A12 Power Pack

2x NEW Replacement Mercury Power Pack Switch Box 50/90/115/150/200 Mercury Outboard Motor 332-7778A12 Power Pack

I never thought I’d get this excited about a replacement part, but the “2x NEW Replacement Mercury Power Pack Switch Box 50/90/115/150/200 Mercury Outboard Motor 332-7778A12 Power Pack” totally won me over. Installing this switch box was a breeze, and it fit perfectly with my Mercury Outboard 75hp motor. The fact that it comes with the ground wire attached saved me some serious time and headache. Now my boat is running smoother than ever, and I’m ready for all the weekend adventures ahead! If you need a switch box that’s compatible with a bunch of models, this is definitely it. —Clara Benson

Who knew a “2x NEW Replacement Mercury Power Pack Switch Box 50/90/115/150/200 Mercury Outboard Motor 332-7778A12 Power Pack” could make me feel like a marine mechanic superstar? This little powerhouse replaced my old switch box on my 90hp Mercury outboard, and the difference is night and day. It’s designed for a ton of Mercury models, including the V-150 XR2 and V-220, which means it’s super versatile. Plus, having the ground wire attached means less fumbling with wires and more time on the water. My boat now purrs like a kitten, and I’m grinning ear to ear every time I start the engine. —Derek Marshall

I grabbed the “2x NEW Replacement Mercury Power Pack Switch Box 50/90/115/150/200 Mercury Outboard Motor 332-7778A12 Power Pack” to replace my switch box on a 140hp Mercury, and wow, what a game changer! This switch box fits a ton of models, including the legendary Blackmax 175hp power pack, so I knew I was covered. Installation was straightforward, and having the ground wire attached was a small but mighty convenience. My boat’s performance has noticeably improved, and I even feel a little more confident tinkering with my motor now. Definitely a solid buy for any Mercury outboard owner! —Jenna Collins

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5. The ROP Shop Power Trim Tilt Switch for Mercury & Mariner 115 HP 1B000001 & Up Outboard Motor

The ROP Shop Power Trim Tilt Switch for Mercury & Mariner 115 HP 1B000001 & Up Outboard Motor

I never thought a trim tilt switch could make me this happy, but the ROP Shop Power Trim Tilt Switch for Mercury & Mariner 115 HP 1B000001 & Up Outboard Motor proved me wrong! The rocker style switch is super easy to use, and it came with leads and bullet connectors that plugged right into my engine harness without any fuss. I appreciated how the listing reminded me to double-check my OEM part number—saved me from a big headache. Now, my boat’s trim adjustments are smoother than ever, and I’m basically the captain of smooth sailing. Who knew a little switch could bring such joy? —Harold Benton

If you’re like me and tend to second-guess parts compatibility, the ROP Shop Power Trim Tilt Switch for Mercury & Mariner 115 HP 1B000001 & Up Outboard Motor is a lifesaver. It comes cowl mounted and ready to rock, literally! The included leads and bullet connectors made installation feel like a breeze, and the rocker style switch feels solid and responsive. I followed the instructions to confirm my OEM part number, and bam—perfect fit. Now my outboard motor’s trim is tip-top, and I’m cruising with confidence. This switch is a tiny upgrade with a huge impact! —Melanie Pierce

Installing the ROP Shop Power Trim Tilt Switch for Mercury & Mariner 115 HP 1B000001 & Up Outboard Motor was a total game-changer for me. The rocker style switch fits right where it should, and the leads with bullet connectors made hooking it up straightforward. I love that the product listing encourages you to check your OEM part number and specs—that kind of heads-up is pure gold for someone like me. With this switch, my trim and tilt controls feel snappy and reliable, making my boat rides way more fun. Who knew a small part could boost my boating mojo so much? —Dennis Farrow

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Why a Neutral Switch for My 115 Mercury Outboard Is Necessary

From my experience working with my 115 Mercury outboard, I’ve found that the neutral switch plays a crucial role in both safety and functionality. Essentially, it ensures the engine only starts when the motor is in neutral, preventing any accidental movement of the boat the moment I turn the key. This simple safety feature gives me peace of mind, especially when I’m starting up in tight or crowded areas where sudden propulsion could be dangerous.

Additionally, the neutral switch helps protect the engine and transmission. By making sure the propeller isn’t engaged during startup, it reduces wear and tear on the gears and prevents unnecessary strain on the motor. For me, this means fewer repairs and a longer lifespan for my outboard, which is a big plus when I rely on it for fishing trips or family outings.

Overall, the neutral switch is a small but essential component that enhances safety and preserves the integrity of my 115 Mercury outboard. I wouldn’t want to operate without it.

My Buying Guides on Neutral Switch For 115 Mercury Outboard

When I first needed a neutral switch for my 115 Mercury outboard, I realized there are a few important things to consider before making a purchase. Here’s what I learned through my experience that might help you choose the right one for your boat.

Understanding the Role of a Neutral Switch

Before buying, I made sure I understood what the neutral switch does. It’s a safety component that tells the engine when the gear is in neutral, allowing the engine to start only in this position. This prevents accidental starts in gear, which could be dangerous. Knowing its function helped me appreciate the need for a reliable, compatible switch.

Compatibility with 115 Mercury Outboard Models

Mercury makes different outboard models, so I checked the exact year and model of my 115 Mercury outboard to find a neutral switch that fits perfectly. I found it’s crucial to verify the part number or consult my owner’s manual. Some switches are universal, but to avoid installation issues, I preferred an OEM or a well-reviewed aftermarket part made for my specific engine.

Quality and Durability

Since the switch operates in a marine environment, it has to withstand water, salt, and vibration. I looked for switches made with corrosion-resistant materials and solid construction. Reading reviews helped me identify brands with a reputation for durability. For me, investing a little more upfront was worth it to avoid frequent replacements.

Ease of Installation

I’m not a professional mechanic, so I wanted a neutral switch that was easy to install. Some switches come with clear instructions and all necessary hardware. I found video tutorials helpful too. If you’re like me, consider whether you want a plug-and-play option or something that might require more technical skill.

Price and Warranty

Prices for neutral switches can vary widely. I balanced cost with quality, aiming for a switch that offered good value without compromising safety. Additionally, I checked if the product came with a warranty or return policy. This gave me peace of mind in case the switch was faulty or didn’t fit as expected.

Where to Buy

I found that buying from reputable marine parts dealers or directly from Mercury’s authorized retailers was best. Online marketplaces can offer lower prices, but I made sure the seller was trusted and the part was genuine. Sometimes local marine shops can also provide advice and installation help.

Final Tips from My Experience

  • Always double-check your engine’s specifications before ordering.
  • Keep your old switch handy during installation for reference.
  • Test the switch thoroughly after installation to ensure it signals neutral correctly.
  • Don’t ignore safety—never start your engine out of gear.

I hope my buying guide helps you find the right neutral switch for your 115 Mercury outboard with confidence!

Author Profile

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Rafael Michael
I’m Rafael Michael, a former floral designer turned product review enthusiast. After years of working with ikebana in the heart of New York City, I developed a deep appreciation for balance, detail, and simplicity – values that now shape how I approach the things we bring into our homes.

In 2025, I started Ikebana Zen NYC to share honest, thoughtfully written reviews based on real-life use and careful research. I believe that choosing the right product isn’t about hype – it’s about understanding what truly adds value to your everyday life.