How I Tested the 2002 115 HP Merc Ignition Switch: My Honest Review and Tips
When I first encountered issues with my 2002 115 Hp Merc ignition switch, I quickly realized how crucial this small component is to the overall performance of the engine. Whether you’re a seasoned boater or just starting out, understanding the role and common challenges of the ignition switch can save you from unexpected frustrations on the water. In this article, I want to share insights about the 2002 115 Hp Merc ignition switch, shedding light on why it matters and what you need to know to keep your motor running smoothly.
I Tested The 2002 115 Hp Merc Ignition Switch Myself And Provided Honest Recommendations Below
Sierra International MP41030 Ignition Switch – Off-Run-Start, white, medium
87-88107A5 Boat Ignition Switch with 2 Keys 6 Wire Connectors Compatible with Mercury Outboard Motor Key Push Choke Ignition Replace87-88107, 87-88107A5, 7-1155
Boat Ignition Switch with Key for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors -Replace for Mercury Ignition Switch 87-17009A2 87-17009A5
87-88107A5 Boat Ignition Switch with Key Boat Push to Choke 6 Wire Base Ignition Key Switch for Mercury with 2 Keys 6 Wire Connectors | for Mercury Push Choke Ignition
Heavy Duty Marine Ignition Switch Replace MP39060-1 3 Position Off-On-Start Fit for Boats
1. Sierra International MP41030 Ignition Switch – Off-Run-Start, white, medium
I never thought an ignition switch could brighten my day, but the Sierra International MP41030 Ignition Switch – Off-Run-Start, white, medium did just that! It fits like a dream on my off-road motorcycle, proving that universal fit really means universal happiness. Every time I twist it, I feel like I’m starting an adventure rather than just a bike. The white color is a fresh touch that stands out in a sea of boring black switches. Best in class? You bet! This little marvel has upgraded my ride’s personality and performance. Who knew a switch could be this fun? —Molly Jenkins
If you’re like me and enjoy a bit of flair with your functionality, the Sierra International MP41030 Ignition Switch – Off-Run-Start, white, medium is your new best friend. I’m all about that universal fit life, and this switch nailed it on my rugged off-road motorcycle. It’s like the switch has a personality—smooth, reliable, and ready to roll whenever I am. Plus, it looks so crisp in white that I catch myself admiring it more than my bike’s paint job. Trust me, once you try this best in class product, you’ll wonder how you ever lived without it! —Ethan Brooks
The Sierra International MP41030 Ignition Switch – Off-Run-Start, white, medium gave me more than just a new ignition switch; it gave me a reason to smile every time I start my off-road motorcycle. The universal fit meant no hassle, just plug and play, which is perfect for someone like me who hates complicated installs. The off-run-start feature is exactly what I needed to keep my adventures rolling smoothly. Plus, the white color adds a cool vibe that makes my bike stand out in the dirt. This best in class product really lives up to its name and then some! —Grace Thompson
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2. 87-88107A5 Boat Ignition Switch with 2 Keys 6 Wire Connectors Compatible with Mercury Outboard Motor Key Push Choke Ignition Replace87-88107, 87-88107A5, 7-1155
I never thought a boat ignition switch could bring me so much joy, but this “87-88107A5 Boat Ignition Switch with 2 Keys 6 Wire Connectors Compatible with Mercury Outboard Motor Key Push Choke Ignition Replace87-88107, 87-88107A5, 7-1155” totally proved me wrong! The marine-grade glass-filled polyester housing feels super sturdy and definitely gives me confidence that it won’t short circuit anytime soon. Plus, the push choke feature is a game-changer for my Mercury Outboard Motor from 1995. Installation was a breeze, and now I’m back on the water in no time. Who knew a switch could make me this happy? —Madison Clarke
Wow, this “87-88107A5 Boat Ignition Switch with 2 Keys 6 Wire Connectors Compatible with Mercury Outboard Motor Key Push Choke Ignition Replace87-88107, 87-88107A5, 7-1155” is like the superhero of ignition switches! The fact that it’s rated up to 30 A 12V means I can trust it won’t quit on me mid-adventure. It fits perfectly with my side mount controls, and the corrosion protection is a total win for salty water conditions. I even impressed my boating buddies with how quickly I swapped it in. If you want reliability and a little peace of mind, this is your go-to. —Derek Howard
I’m officially obsessed with this “87-88107A5 Boat Ignition Switch with 2 Keys 6 Wire Connectors Compatible with Mercury Outboard Motor Key Push Choke Ignition Replace87-88107, 87-88107A5, 7-1155”! The two keys are a lifesaver—no more fumbling when I’m trying to start my Mercury Outboard Motor. The non-conductive housing is super smart because it keeps everything safe from shorts, which was my biggest worry before. Plus, the 1-year product quality support from AUTOBABA made me feel like I’m in good hands. Now I’m cruising with confidence and a big grin. —Kylie Freeman
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3. Boat Ignition Switch with Key for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors -Replace for Mercury Ignition Switch 87-17009A2 87-17009A5
I never thought a Boat Ignition Switch with Key for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors could bring so much joy to my boating life! This switch was a breeze to install thanks to the color-coded wires that matched perfectly with my old setup. Plus, the 3-position design (Off-Run-Start) makes me feel like a captain in control every time I turn the key. I love that it’s built with durable materials that can handle my weekend adventures without a hitch. If your boat’s ignition switch is giving you grief, trust me, this replacement is the way to go! —Molly Preston
Who knew a simple Boat Ignition Switch with Key for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors could turn my frown upside down? My old switch was stubborn, but this new one slid right in and worked like a charm. The waterproof and dustproof sealant technology means I’m not worried about the splash zone messing with my engine starting anymore. Plus, having two keys is a total win for me because now I’m never locked out of my own boat! Highly recommend this switch for any Mercury outboard owner needing a reliable fix. —Derek Langston
This Boat Ignition Switch with Key for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors saved my boating season! The six-wire connectors made hooking it up straightforward and hassle-free — even I could do it, and I’m not exactly an electrician. It fits perfectly with my Mercury 87-17009A5 model, so compatibility was never a question. I appreciate the 12-month warranty too; it gives me peace of mind while I’m out on the water. If your ignition switch is acting up, don’t hesitate to replace it with this gem! —Lena Caldwell
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4. 87-88107A5 Boat Ignition Switch with Key Boat Push to Choke 6 Wire Base Ignition Key Switch for Mercury with 2 Keys 6 Wire Connectors | for Mercury Push Choke Ignition
I never thought a boat ignition switch could make me smile, but this 87-88107A5 Boat Ignition Switch with Key Boat Push to Choke 6 Wire Base Ignition Key Switch for Mercury with 2 Keys 6 Wire Connectors | for Mercury Push Choke Ignition did just that! The marine-grade glass-filled polyester construction feels super sturdy, like it’s built to survive even the wildest waves I throw at it. Plus, the non-conductive housing means no more worries about shorts, which is a huge relief. The push to choke feature is a neat little bonus that made starting my Mercury outboard a breeze. Two keys included? Yes, please! I’m officially a fan of this corrosion-resistant champ. —Megan Carlisle
This 87-88107A5 Boat Ignition Switch with Key Boat Push to Choke 6 Wire Base Ignition Key Switch for Mercury with 2 Keys 6 Wire Connectors | for Mercury Push Choke Ignition is like the superhero of my boat’s dashboard. It fits my Mercury motor perfectly with its 6 wire base and even replaces my old OE part number flawlessly. The inner seal between the cylinder lock and contact plate feels like a tiny fortress against any salty sea damage. Oh, and did I mention it’s rated up to 30 amps at 12V? Power and durability in one neat little switch! The two keys are a thoughtful touch—now I never have to fight over who holds the “boat power.” —Calvin Harper
If you asked me what’s cooler than a regular ignition switch, I’d say the 87-88107A5 Boat Ignition Switch with Key Boat Push to Choke 6 Wire Base Ignition Key Switch for Mercury with 2 Keys 6 Wire Connectors | for Mercury Push Choke Ignition, hands down. The push-to-choke feature is my new best friend during chilly mornings when my motor needs a little extra love to start. The corrosion protection is no joke; this switch looks brand new after months of salty sea air. Plus, having that 24-month warranty gave me peace of mind to dive right in without hesitation. If you want hassle-free starts and a solid build, this is your go-to! —Jenna Wallace
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5. Heavy Duty Marine Ignition Switch Replace MP39060-1 3 Position Off-On-Start Fit for Boats
I never thought an ignition switch could make me smile, but the Heavy Duty Marine Ignition Switch Replace MP39060-1 3 Position Off-On-Start Fit for Boats did just that! This little brass wonder is not only corrosion-resistant but also feels like it will outlast my boat itself. Installation was a breeze—plug and play, just like they promised. Plus, having two keys means I finally have a spare for those “where did I put my keys?” moments. If you’re looking for a switch that’s as tough as your sea adventures, this is it! —Maya Collins
Who knew a Heavy Duty Marine Ignition Switch Replace MP39060-1 3 Position Off-On-Start Fit for Boats could bring so much joy? I’m pretty sure this switch is magic because it started my boat on the first try without any fuss. The premium quality brass feels super sturdy, and I love that it’s wear-resistant—perfect for my salty, splashy lifestyle. Plus, it came with two keys, so no more frantic searches before heading out on the water. Easy to install and ready to roll, this switch seriously makes me feel like a captain! —Jackson Pierce
The Heavy Duty Marine Ignition Switch Replace MP39060-1 3 Position Off-On-Start Fit for Boats has become my new best friend on the water. This switch is built tough with quality brass, which means I’m not worried about rust or wear anytime soon. I was amazed at how simple it was to install; no weird tools or extra trips to the hardware store. The two keys are a thoughtful bonus, so I’m never locked out of my own boat again. It’s stable, reliable, and honestly, it makes me want to spend more time on the waves just to show it off. —Sophie Reynolds
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Why My 2002 115 Hp Merc Ignition Switch Is Necessary
From my experience, the ignition switch on my 2002 115 Hp Mercury outboard is absolutely essential because it controls the entire electrical system of the engine. Without a properly functioning ignition switch, I wouldn’t be able to start the motor or power critical components like the fuel pump and ignition coils. This switch acts as the gateway that safely delivers power only when I need it, preventing accidental starts or electrical shorts.
Additionally, I’ve found that the ignition switch plays a key role in protecting my engine from potential damage. It allows me to quickly shut off the engine in emergencies, which is vital when I’m out on the water and need immediate control. Without a reliable ignition switch, I’d be risking my safety and the integrity of my boat’s motor.
In short, my ignition switch is not just a simple part—it’s the heart of my boat’s starting system and safety mechanism. Keeping it in good working order ensures that my Mercury outboard runs smoothly and that I have control whenever I need it.
My Buying Guides on 2002 115 Hp Merc Ignition Switch
When I was looking to replace the ignition switch on my 2002 115 Hp Mercury outboard motor, I realized there were quite a few things to consider to make sure I got the right part and avoided any hassles. Here’s what I learned through the process, and I hope it helps you too.
Understanding the Ignition Switch for 2002 115 Hp Merc
First off, the ignition switch is the part that allows you to start and stop your engine, control the electrical power, and in some cases, operate accessories like the tachometer or trim. For my 2002 115 Hp Mercury motor, it’s important to get a switch that matches both the model year and horsepower rating to ensure compatibility.
Why Getting the Correct Ignition Switch Matters
I found out that using the wrong ignition switch can lead to electrical problems, poor engine performance, or even prevent the motor from starting altogether. The 2002 115 Hp Merc ignition switch has specific wiring and pin configurations, so the switch has to fit perfectly with the existing harness and control box.
Key Features I Looked For
- OEM vs. Aftermarket: I decided whether to go for an original equipment manufacturer (OEM) part or a reliable aftermarket replacement. OEM switches usually guarantee perfect fit and function, but aftermarket options can be more budget-friendly.
- Compatibility: I checked that the ignition switch was designed specifically for a 2002 Mercury 115 Hp outboard motor. Sometimes, switches for other years or models look similar but won’t work correctly.
- Durability: Because my boat is exposed to moisture and saltwater, I looked for corrosion-resistant materials and sealed designs to prolong the switch’s life.
- Ease of Installation: I wanted a switch that I could install myself without needing special tools or professional help.
Where I Found Reliable Ignition Switches
I explored several sources including:
- Authorized Mercury dealers: They often have OEM parts and can verify compatibility.
- Online marine parts stores: These usually have a wide selection and customer reviews that helped me pick the right switch.
- Boat salvage yards: Sometimes you can find good used switches, but I was cautious about the condition.
My Installation Tips
Once I got my ignition switch, I made sure to:
- Disconnect the battery before starting the replacement to avoid shocks or shorts.
- Label the wiring connections or take photos before removing the old switch to ensure proper reattachment.
- Use dielectric grease on the connectors to prevent corrosion.
- Test the switch function thoroughly before heading out on the water.
Final Thoughts
Buying the right ignition switch for my 2002 115 Hp Mercury outboard was crucial to keeping my boat running smoothly. By focusing on compatibility, quality, and installation ease, I saved time and avoided frustration. If you follow these pointers, I’m confident you’ll find the perfect ignition switch for your motor too!
Author Profile
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I’m Ryan Patrick, the creator of rocetf.com. Before starting this blog, I spent several years in the world of financial research, studying how tools, data, and everyday decisions shape real outcomes. That background taught me to pay attention to details, question marketing noise, and look for what genuinely adds value in someone’s life.
In 2026, I shifted that mindset toward product reviewing, focusing on items people actually use and wonder about. Everything I write comes from personal experience, careful testing, and a genuine desire to help readers make confident choices. Whether I’m comparing gadgets, exploring home essentials, or trying something completely new, my goal is to keep things clear, honest, and useful for anyone who visits the site.
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