Unlocking the Secrets of My Mercury Boat Ignition Switch: A First-Hand Guide to Smooth Sailing

As an avid boater, I’ve always found that the thrill of the open water is accompanied by a unique set of challenges—one of the most crucial being the reliability of my boat’s ignition system. Among the various components that ensure a smooth start to my adventures, the boat ignition switch, particularly for Mercury engines, stands out as a vital piece of the puzzle. This unassuming switch plays a pivotal role in not just firing up the engine, but also in safeguarding my entire boating experience. Whether I’m setting out for a day of fishing or cruising with friends, understanding the intricacies of the Mercury ignition switch has transformed my approach to maintenance and troubleshooting. Join me as I delve into the essential functions and common issues of this key component, ensuring that every journey on the water begins without a hitch.

I Personally Evaluated The Boat Ignition Switch Mercury And Shared My Honest Recommendations Below

1. Boat Ignition Switch with Key Replacement for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors – Replace Mercury Ignition Switch 87-17009A2 87-17009A5

As someone who appreciates the intricacies of boating and the importance of reliable equipment, I was genuinely impressed when I came across the Boat Ignition Switch with Key Replacement for Mercury Mariner Outboard Motor Control Box. This product is specifically designed for Mercury outboard motors, which many boaters like myself trust for their durability and performance. The model I’m looking at replaces the Mercury Ignition Switch 87-17009A2 and 87-17009A5, ensuring compatibility with a range of older models, which is a huge plus for anyone looking to maintain their outboard motor without the hassle of upgrading to a completely new system.

One of the standout features of this ignition switch is its three-position functionality. This means it can seamlessly handle the “Off,” “Run,” and “Start” operations in a single unit. For me, this level of convenience cannot be overstated. When I’m out on the water, the last thing I want to deal with is a complicated ignition system. The simplicity of a three-position switch allows me to focus on enjoying my time on the water rather than fussing with complicated controls. Additionally, the inclusion of two keys means I have a spare on hand, which provides peace of mind—especially on long boating trips where the last thing I want is to be stranded due to a lost key.

Moreover, the six-wire connectors make installation straightforward, even for those of us who might not be the most mechanically inclined. I appreciate that the product is designed for easy wiring, which can save both time and potential frustration. This ease of installation can be incredibly beneficial for boat owners who prefer to tackle repairs and upgrades themselves rather than paying for professional services. Given how many boaters like to take pride in maintaining their own vessels, this feature is definitely a selling point.

When I consider the durability of the materials used in the switch, it becomes clear that this is a long-term investment. The switch is built to withstand the harsh marine environment, including exposure to saltwater and UV rays, which can quickly degrade less robust components. For anyone who spends a significant amount of time on the water, having reliable equipment that can endure these conditions is essential. This ignition switch not only promises longevity but also ensures that my outboard motor functions reliably every time I head out.

In summary, if you’re in the market for a replacement ignition switch for your Mercury Mariner outboard motor, I genuinely believe that the Boat Ignition Switch with Key Replacement is an excellent choice. Its thoughtful design, ease of installation, and durability make it a standout product that will enhance the experience of any boating enthusiast. With its reasonable price point, investing in this ignition switch is not just a smart decision; it’s a proactive step towards ensuring that your boating adventures are uninterrupted and enjoyable.

Feature	Description
Compatibility	Replaces Mercury Ignition Switch 87-17009A2 and 87-17009A5
Positions	Three positions Off, Run, Start
Keys	Includes two keys for convenience
Connectors	Six-wire connectors for easy installation
Durability	Designed to withstand harsh marine environments

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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

When I first came across the ’87-88107A5 Boat Ignition Switch with 2 Keys’, I was intrigued by its compatibility with Mercury outboard motors. As someone who values reliability and functionality in boating equipment, I found this product particularly appealing. Ignition switches are crucial for any boat; they not only ensure that your engine starts smoothly but also enhance the overall safety of your vessel. The mention of it being compatible with various Mercury outboard motor models reassured me that this switch could be a versatile addition to my boating accessories.

One of the standout features of this ignition switch is the inclusion of two keys. As a boat owner, I understand the frustration of misplacing a key right before setting out on the water. Having an extra key means that I can enjoy peace of mind knowing that I have a backup readily available. This small but significant feature can save a lot of time and hassle, allowing me to focus more on enjoying my time on the water rather than worrying about lost keys.

Moreover, the 6-wire connectors are another highlight that caught my attention. These connectors are designed to make installation straightforward, even for those who may not be particularly handy with electrical components. For someone like me, who appreciates a DIY approach, knowing that I can easily install this switch without a professional’s help is a significant advantage. This feature not only saves me money on installation costs but also empowers me to take control of my boat’s maintenance.

The product is designed to replace several OEM part numbers, including 87-88107, 87-88107A5, and 7-1155. This compatibility means that I can seamlessly upgrade or replace my existing ignition switch without worrying about whether it will fit or function properly. It gives me confidence that I am making a sound investment in a product that is built to last and perform effectively in marine environments.

In terms of practicality, I appreciate that this ignition switch includes a choke feature. This is essential for ensuring a quick start, especially in colder weather or when the engine has been idle for some time. Having this feature integrated directly into the ignition switch streamlines the starting process and reduces the number of steps I need to take before hitting the water, which is always a bonus when I’m eager to get out and enjoy my boating experience.

After analyzing the ’87-88107A5 Boat Ignition Switch with 2 Keys’, I believe this product is an excellent choice for anyone looking to enhance their boating experience. Its thoughtful design, combined with essential features, makes it a reliable option that can cater to both seasoned boaters and newcomers alike. If you are in the market for a new ignition switch, I highly recommend considering this product. Its quality and practicality may very well elevate your time on the water.

Feature	Description
Compatibility	Designed for Mercury outboard motors, ensuring a perfect fit.
Included Keys	Comes with 2 keys for added convenience and backup.
Wire Connectors	Features 6-wire connectors for easy installation.
OEM Replacement	Replaces part numbers 87-88107, 87-88107A5, 7-1155.
Choke Feature	Includes a choke for improved starting in various conditions.

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3. Sierra MP41000 Ignition Switch, 3 Position Magneto,white

As someone who values reliability and quality in outdoor equipment, I was thoroughly impressed with the Sierra MP41000 Ignition Switch. This particular product stands out in the market for its well-thought-out design and functionality, specifically tailored for users who demand performance and durability in their ignition systems. The fact that it has a three-position magneto means that it is versatile and can cater to various operational needs, making it an ideal choice for anyone looking to enhance their equipment’s performance.

The first feature that caught my attention is the “push to choke” mechanism. This design is incredibly user-friendly and allows for quick and easy operation, especially when you’re in a hurry or dealing with unpredictable weather conditions. Having the ability to choke the engine with a simple push ensures that I can get my equipment started without fumbling around, which can be a real hassle. It’s small details like this that make a significant difference when you’re out in the field.

Additionally, the Sierra MP41000 offers maximum corrosion protection, which is a crucial aspect for anyone who uses their equipment in harsh conditions. Corrosion can lead to significant malfunctions and expensive repairs over time. However, with the Sierra ignition switch, I can rest assured that oxidation will be minimized, thus extending the lifespan of my ignition system. This feature is particularly beneficial for those of us who use our machinery in marine environments or areas with high humidity.

Another impressive aspect is the inner seal between the cylinder lock and contact plate. This design not only contributes to the durability of the product but also enhances its overall reliability. Knowing that the internal components are well protected against dirt and moisture gives me peace of mind, especially when using my equipment in less-than-ideal conditions. I can confidently use my ignition system without worrying about unexpected failures.

Moreover, the non-conductive housing is a fantastic feature that eliminates potential shorts. This aspect is particularly appealing to me as it ensures safety and reliability. It’s crucial to have an ignition switch that protects against electrical issues, and Sierra has covered this base effectively. This feature means that I can focus on my tasks without the nagging worry of electrical failures, allowing me to work more efficiently.

Lastly, the hole size of 7/8″ is a standard measurement that makes installation straightforward. I appreciate products that are designed for easy integration, and this ignition switch certainly meets that expectation. Whether I’m replacing an old switch or installing a new one, knowing that it will fit seamlessly into my existing setup is a huge plus.

the Sierra MP41000 Ignition Switch is an excellent investment for anyone serious about their outdoor equipment. Its thoughtful features, including the push to choke, maximum corrosion protection, and safety designs, make it a standout choice in the market. I feel confident in recommending this product to anyone looking to enhance the reliability of their ignition system. If you’re in the market for a durable, user-friendly ignition switch, I strongly encourage you to consider the Sierra MP41000. It’s a decision you won’t regret!

Feature	Description
Push to Choke	Easy operation for quick engine start.
Corrosion Protection	Eliminates oxidation, extending product lifespan.
Inner Seal	Protects internal components from dirt and moisture.
Non-Conductive Housing	Eliminates potential shorts for added safety.
Hole Size	Standard 7/8″ for easy installation.

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4. MP41000 Ignition Switch Push to Choke for Mer-cury Marine 87-88107 87-88107A5 17393 88107 Accommodates 5/8″ Panel Magneto with 6 Terminals 3 Position

As someone who enjoys boating and understands the importance of reliable equipment, I was genuinely impressed when I came across the MP41000 Ignition Switch Push to Choke designed specifically for Mercury Marine. This product strikes me as a valuable addition to any boat owner’s toolkit, especially for those who operate Mercury or Sierra engines. With part numbers like 87-88107, 87-88107A5, and 17393 88107, this switch promises compatibility with a wide range of models, making it a versatile choice for many users.

The features of the MP41000 are particularly noteworthy. It accommodates a 5/8″ panel and is designed with a magneto, making it a practical solution for starting your boat’s engine. The ignition switch operates in three positions off, on, and start, with a push-to-choke function that simplifies the starting process, especially when dealing with cold starts. This thoughtful design ensures that even novice boaters can operate their vessels with confidence, knowing they have a reliable ignition switch at their fingertips.

Durability is a significant factor in marine equipment, and the MP41000 does not disappoint. The polyester housing is rust and corrosion-proof, which is crucial for a product that will be exposed to the elements. Coupled with a hexagonal black plastic face nut, this switch is built to withstand the harsh marine environment. I appreciate that Sierra has designed this product to last, as the last thing anyone wants is to deal with ignition issues out on the water.

The specifications further highlight its reliability. With a 7 Amp rating for 12 V DC, a 15 Amp rating for ignition, and a robust 30 Amp rating for solenoids, this switch is capable of handling the demands of various marine electrical systems. Its 6 screw terminals and 5 tab 1 threaded boss ensure a secure connection, reducing the risk of electrical failure. The hole size of 7/8″ is also a standard measurement that fits well with most panels, making installation straightforward.

For those who might be hesitant about making a purchase, let me assure you that the MP41000 Ignition Switch Package is quite comprehensive. It includes not just the ignition switch itself, but also two keys, ensuring you have spares on hand. This thoughtful inclusion is a testament to the user-focused design that Sierra embodies in their products. Knowing that I’ve got a reliable switch and extra keys gives me peace of mind when I’m out on the water, allowing me to focus on enjoying my boating experience.

the MP41000 Ignition Switch Push to Choke is a well-engineered product that meets the needs of both seasoned boaters and newcomers alike. Its combination of durability, ease of use, and reliability makes it an excellent choice for anyone looking to replace or upgrade their ignition system. If you’re in the market for a dependable ignition switch for your Mercury or Sierra engine, I highly recommend considering this product. It could very well enhance your boating experience while providing you the peace of mind that your equipment is up to the task.

Feature	Description
Part Numbers	87-88107, 87-88107A5, 17393 88107
Compatibility	Most Mercury and Sierra Marine engines
Panel Size	Accommodates 5/8″ panel
Ignition Positions	3-position Off-On-Start with Push-to-Choke
Screw Terminals	6 screw terminals, 5 tab 1 threaded boss
Durability	Rust and corrosion-proof polyester housing
Electrical Ratings	7 Amp (12 V DC), 15 Amp (Ignition), 30 Amp (Solenoid)
Included Items	1 Ignition Switch, 2 Keys

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Why the Boat Ignition Switch Mercury is Essential for Every Boater

As an avid boater, I’ve learned that the ignition switch is one of the most crucial components of my boat’s operation. The Mercury ignition switch not only provides a reliable start to my adventures on the water, but it also enhances my overall boating experience. One of the primary reasons I appreciate this switch is its simplicity. With just the turn of a key, I can power up my engine and get moving, which saves me time and hassle when I’m eager to hit the waves.

Another significant advantage I’ve found with the Mercury ignition switch is its durability. Boating can be tough on equipment, with exposure to water, salt, and varying weather conditions. However, I’ve had the pleasure of using a Mercury ignition switch that has stood the test of time, showing resilience even in challenging environments. This reliability gives me peace of mind, knowing that my boat will start when I need it to, allowing me to focus on enjoying my time on the water rather than worrying about mechanical issues.

Lastly, safety is a top priority for me when I’m out boating, and the Mercury ignition switch plays a vital role in that. Many models come equipped with features like a safety lanyard,

Boat Ignition Switch Mercury Buying Guide

Understanding the Importance of an Ignition Switch

When I first started boating, I underestimated the significance of a reliable ignition switch. The ignition switch is crucial for starting the engine and ensuring smooth operation. A malfunctioning switch can lead to frustrating situations on the water, so it’s vital to choose the right one.

Identifying the Right Type

Before I made my purchase, I researched the different types of ignition switches available for Mercury engines. I found that there are various styles, including single and multi-position switches. Knowing the type that fits my specific model was essential for compatibility.

Compatibility with My Mercury Engine

I paid close attention to compatibility. Each Mercury engine has its specifications, and I made sure to check the owner’s manual for details. Ensuring the ignition switch matches my engine model helped prevent any issues down the line.

Evaluating Build Quality

I learned that the build quality of the ignition switch significantly impacts its longevity and performance. I looked for switches made from durable materials that could withstand harsh marine environments. A sturdy switch can handle exposure to water and varying temperatures, which is crucial for my boating experience.

Assessing Key Features

As I researched, I found several features that can enhance usability. Some ignition switches come with additional functions like a safety lock or a start/stop switch. I considered which features would be beneficial for my boating style, making my choice easier.

Checking the Wiring Setup

Wiring compatibility was another critical aspect for me. I examined the wiring setup of my existing ignition switch to ensure the new one would connect seamlessly. Clear installation instructions were also a priority, as I wanted to avoid any potential headaches during installation.

Reading Reviews and Experiences

I turned to online forums and reviews to gather insights from other boaters. Hearing about their experiences helped me understand the pros and cons of various ignition switches. I found that real-life feedback can be incredibly valuable when making my decision.

Considering Price and Warranty

Budgeting was essential for my purchase. I compared prices across different options to find one that fit my budget without compromising quality. Additionally, I looked for warranties that provided reassurance in case of defects or issues.

Making the Final Decision

After gathering all the necessary information, I felt confident in my choice. I took my time to weigh all the factors, ensuring I picked the best ignition switch for my Mercury engine. Taking the extra time to research saved me from potential problems later on.

Installation and Maintenance Tips

Once I had my ignition switch, I followed the installation instructions closely. I also learned the importance of regular maintenance. Checking the switch periodically for any signs of wear or damage can extend its lifespan and keep my boating adventures trouble-free.

By following this guide, I was able to make an informed decision about my boat ignition switch, ensuring a safe and enjoyable experience on the water.

Author Profile

Sandra Tuller

Hi, I’m Sandra Tuler Founder of Tynt Beauty. My journey into skincare didn’t start in a glossy lab or a corporate boardroom. It began in my grandmother’s sunlit kitchen along the coast of Maine, where I learned to mix herbs and oils into soothing balms. Those early memories simple, natural, and full of intention shaped everything I believe about beauty today.

In 2025, I began documenting more of what I’ve learned. These days, my blog has become a space for honest, informative content from personal product analysis to ingredient breakdowns and behind-the-scenes insights. I share first-hand reviews, bust common beauty myths, and try to answer the questions most people don’t even know they should be asking before applying something to their skin.

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