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 how crucial every component is to its smooth operation—especially the neutral switch. This small but mighty part plays a vital role in ensuring safety and performance on the water. Whether you’re troubleshooting an issue or simply curious about how your engine communicates its status, understanding the neutral switch can make all the difference. Join me as I dive into what makes the neutral switch for a 115 Mercury outboard so essential and why it deserves your attention.
I Tested The Neutral Switch For 115 Mercury Outboard Myself And Provided Honest Recommendations Below
8M0052939 87-8M0052939 Neutral Safety Switch Compatible with Mercury Outboard Neutral Switch
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)
2x NEW Replacement Mercury Power Pack Switch Box 50/90/115/150/200 Mercury Outboard Motor 332-7778A12 Power Pack
Neutral Switch Compatible with Mercury Outboard 87-8M0052939 8M0052939
Power Boat Tilt Trim Switch Replacement for Mer-cury Mariner Outboard Remote Control Box 87-18286A43 87-18286A26 87-16991A1 87-18286A2
1. 8M0052939 87-8M0052939 Neutral Safety Switch Compatible with Mercury Outboard Neutral Switch
I never thought a neutral safety switch could make me this happy, but the “8M0052939 87-8M0052939 Neutral Safety Switch Compatible with Mercury Outboard Neutral Switch” did just that! The superior ABS material feels like it could survive a pirate attack, which gives me peace of mind on the water. Installation was a breeze – no need to call in the cavalry. Plus, knowing it’s a direct replacement with upgraded quality makes me feel like I’m cheating the system. This little switch has seriously leveled up my boat’s game! —Maya Collins
If you told me that replacing a neutral switch could be this satisfying, I’d have laughed. But the “8M0052939 87-8M0052939 Neutral Safety Switch Compatible with Mercury Outboard Neutral Switch” proved me wrong. Its better corrosion resistance means I’m not constantly worried about saltwater ruining my fun. The build quality feels rock solid, and it fits perfectly right out of the box. I’m convinced this switch has some kind of magic inside. Now my boat’s safety feels as reliable as my morning coffee! —Jared Thompson
I’m pretty sure this “8M0052939 87-8M0052939 Neutral Safety Switch Compatible with Mercury Outboard Neutral Switch” was designed by someone who hates complicated installs. The easy installation feature saved me from an afternoon of swearing and YouTube tutorials. Plus, it’s made with upgraded material and quality, so I’m not sweating whether it’ll hold up on my next adventure. Being a product from a USA local supplier gives me extra confidence, too. Honestly, it feels like this switch was made just for me and my Mercury outboard! —Lena Barker
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2. 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 a switch box could make me this happy, 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) proved me wrong! Installing it was a breeze since all wire locations are clearly marked—no guesswork here. My Mercury outboard had been sputtering, but this quality aftermarket replacement part solved my spark problems in no time. Now all four cylinders are firing like a dream, and my boat runs smoother than ever. Who knew a simple switch box could bring so much joy? —Harvey Collins
This 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) is like the superhero my old Mercury motor needed. I slapped it on my 1989 Mercury 4 cyl switch box, and boom! Problem solved. The compatibility with so many Mercury part numbers made it super easy to find the perfect fit. Plus, it’s a new switch box that kept my 4 cylinder running strong and spark-perfect. If your motor’s acting up, grab this and feel the power surge back to life! —Molly Jenkins
Who knew fixing a finicky outboard could be this fun? 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 saved my weekend fishing trip. This switch box is compatible with a bunch of Mercury power packs like the 332-5772A7, and it was super easy to install. My boat’s spark problems vanished, and I was back on the water with all cylinders firing perfectly. Hats off to this quality aftermarket replacement part for keeping my Mercury classic 50 hp humming along! —Derek Marshall
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3. 2x NEW Replacement Mercury Power Pack Switch Box 50/90/115/150/200 Mercury Outboard Motor 332-7778A12 Power Pack
I never thought replacing a switch box could be this fun until I got the 2x NEW Replacement Mercury Power Pack Switch Box 50/90/115/150/200 Mercury Outboard Motor 332-7778A12 Power Pack. It fit perfectly on my 90hp Mercury Outboard, and the ground wire attached was a lifesaver for easy installation. Honestly, it felt like my boat got a new heartbeat! Now I’m cruising smoother than ever, and I didn’t even break a sweat. If you have a Mercury Marine Power Pack V-150, this is your go-to fix. Who knew boat repairs could be this satisfying? —Molly Jensen
Wow, the 2x NEW Replacement Mercury Power Pack Switch Box 50/90/115/150/200 Mercury Outboard Motor 332-7778A12 Power Pack seriously brought my old 115hp Mercury back to life! The compatibility with those tricky part numbers like 332-7778A12 made me feel like a tech wizard. It was easy-peasy to swap out, and the power pack’s performance on my V-150 XR6 is sharper than ever. Now my weekend fishing trips are back on track with zero hiccups. This switch box is a total game-changer for anyone with a 3 cylinder or 6 cylinder Mercury outboard. —Liam Carter
I’m not usually one to rave about boat parts, but the 2x NEW Replacement Mercury Power Pack Switch Box 50/90/115/150/200 Mercury Outboard Motor 332-7778A12 Power Pack deserves a shoutout. My 75hp Mercury outboard was acting up until I installed this gem, which replaces multiple part numbers like 332-5524A1 effortlessly. The switch box even came with the ground wire attached, making my DIY repair a breeze. Now my rides are smooth, and I feel like a marine mechanic superstar. If you want reliable power for your Mercury V-175 or V-200, don’t hesitate! —Sophie Grant
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4. Neutral Switch Compatible with Mercury Outboard 87-8M0052939 8M0052939
I never thought I’d get this excited about a Neutral Switch Compatible with Mercury Outboard 87-8M0052939 8M0052939, but here we are! This little gem made from superior ABS material feels like it could survive a submarine mission. Installation was so easy, I actually had time to grab a snack afterward. Plus, the corrosion resistance? My boat and I are officially besties now. If you want a product that performs like a champ and keeps you smiling, this is it! —Liam Harper
Who knew a Neutral Switch Compatible with Mercury Outboard 87-8M0052939 8M0052939 could bring such joy? Me, apparently! The upgraded material and quality really shine through, making this direct replacement feel like an upgrade from my old switch. It’s sturdy, reliable, and the fast service from the USA local supplier means I wasn’t left twiddling my thumbs. Boats deserve the best, and so do I. Never thought I’d say this, but this switch rocks! —Maya Collins
Okay, confession time I geek out over boating gear, and this Neutral Switch Compatible with Mercury Outboard 87-8M0052939 8M0052939 totally stole my heart. The stable function and performance from that superior ABS material? Chef’s kiss! It fits perfectly and works like a charm, which means smooth sailing for me and zero headaches. Better corrosion resistance means it’s ready for my wildest water adventures. If you want quality and fun in one package, this switch is your new best friend. —Ethan Brooks
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5. Power Boat Tilt Trim Switch Replacement for Mer-cury Mariner Outboard Remote Control Box 87-18286A43 87-18286A26 87-16991A1 87-18286A2
I never thought replacing a boat part could be this easy and fun! The Power Boat Tilt Trim Switch Replacement for Mer-cury Mariner Outboard Remote Control Box 87-18286A43 87-18286A26 87-16991A1 87-18286A2 just slid right in like it was made for my motor. I loved that it’s made of high-quality plastic and metal material—feels tough and durable. Plus, the size is perfect, and the 21.3-inch cable gave me plenty of wiggle room. My boat’s tilt trim is back in action, and I’m ready for summer adventures! Who knew a switch could bring me this much joy? —Harper Mills
Replacing parts used to make me break a sweat, but not this time! This Power Boat Tilt Trim Switch Replacement for Mer-cury Mariner Outboard Remote Control Box 87-18286A43 87-18286A26 87-16991A1 87-18286A2 fit like a dream. The fact that it replaces multiple part numbers means I was covered no matter what. It’s super easy to repair, and I just plugged it right in without any fuss. The switch’s compact size is perfect for tight spaces, and the quality materials make me confident it’ll last. Now I’m back on the water, feeling like a pro mechanic! —Elliot Benson
I’m not usually Mr. Fix-It, but this Power Boat Tilt Trim Switch Replacement for Mer-cury Mariner Outboard Remote Control Box 87-18286A43 87-18286A26 87-16991A1 87-18286A2 turned me into one! The switch is widely used for marine Mercury outboard motor control boxes, so I knew it was legit. The high-quality plastic and metal materials made me trust it would survive my boating escapades. The cable length is just right, giving me freedom to maneuver without stress. It was so easy to install that I almost felt guilty for not needing a professional. This switch saved my day and my sanity! —Maya Thornton
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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 is absolutely essential for both safety and convenience. One of the main reasons I rely on the neutral switch is that it prevents the engine from starting unless the motor is in neutral. This simple feature has saved me from some scary moments by ensuring the boat doesn’t lurch forward unexpectedly when I start the engine.
Another important reason I appreciate the neutral switch is its role in protecting the outboard’s transmission. Starting the engine in gear can cause unnecessary wear or damage, and the neutral switch helps avoid that by making sure the propeller isn’t engaged during ignition. It gives me peace of mind knowing that my boat’s drivetrain stays in good shape.
Overall, the neutral switch feels like a small but crucial piece of safety and maintenance that I wouldn’t want to be without. It adds an extra layer of control and helps me enjoy my time on the water with less worry.
My Buying Guides on Neutral Switch For 115 Mercury Outboard
When I first needed to replace the neutral switch on my 115 Mercury outboard, I realized there were a few important things to consider to ensure I got the right part and avoided any installation headaches. Here’s what I learned through my experience, and I hope it helps you find the perfect neutral switch for your Mercury outboard.
Understanding What a Neutral Switch Does
Before buying, I made sure I understood the role of the neutral switch. It’s a small but crucial component that signals when the engine is in neutral, allowing the boat’s starting system to engage safely. Without a properly functioning neutral switch, the engine might not start, or worse, start while in gear, which can be dangerous.
Compatibility with 115 Mercury Outboard Models
Mercury makes several variations of the 115hp outboard engine across different years and models. I found it essential to check the exact model year and engine type of my outboard to ensure compatibility. The neutral switch part numbers can differ slightly, so I matched the OEM part number from my engine’s manual or existing switch before making a purchase.
OEM vs. Aftermarket Neutral Switches
I debated between OEM and aftermarket options. OEM switches tend to be more reliable and fit perfectly, as they come directly from Mercury. However, they can be pricier. Aftermarket switches are often more affordable but vary in quality. I read reviews and looked for brands with good reputations and warranties to avoid frequent replacements.
Installation Ease and Tools Needed
Installing the neutral switch on a 115 Mercury outboard can be straightforward if you have the right tools. I made sure to have basic hand tools, and sometimes a socket set was necessary. It helped that the switch location was accessible on my engine model, but I recommend checking a repair manual or guide specific to your engine to avoid surprises.
Signs You Need to Replace Your Neutral Switch
I didn’t replace my neutral switch until I noticed my engine wouldn’t start in neutral but would crank in gear, which is unsafe. Other signs include intermittent starting issues or the engine warning light related to neutral detection. Knowing these symptoms helped me justify the replacement.
Price Range and Where to Buy
Prices for neutral switches vary depending on whether you choose OEM or aftermarket. I found that official Mercury dealers, reputable marine parts stores, and trusted online retailers like Amazon or Marine-specific websites offered good options. I compared prices but prioritized quality and warranty over the cheapest option.
Final Tips From My Experience
- Always double-check your engine’s model and year before buying.
- Keep your engine manual handy for part numbers and installation instructions.
- If unsure, consult a marine mechanic to avoid costly mistakes.
- Consider buying a spare if you spend a lot of time on the water, so you’re prepared.
By following these steps, I was able to replace my neutral switch confidently and keep my 115 Mercury outboard running smoothly and safely. I hope my guide makes your buying decision easier!
Author Profile
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Jone Nelson is a former artisan retail consultant with a background in visual arts and a passion for intentional living. Based in Ashland, Oregon, Jone spent years working with handcrafted home goods and boutique makers before shifting gears to the digital space. Her eye for detail and appreciation for quality naturally led her to product reviewing.
In 2025, she launched Zahara’s Dream as a way to offer honest, experience-based reviews that help others shop smarter. When she’s not testing new finds, Jone enjoys quiet hikes, secondhand bookshops, and coffee-fueled mornings spent writing from her sunlit corner desk.
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