How I Successfully Replaced My Mercury Boat Ignition Switch: A Step-by-Step Guide from Personal Experience

When I first set sail on my trusty Mercury boat, I felt the thrill of adventure and the promise of endless horizons. However, there came a day when the engine refused to start, and my enthusiasm was met with frustration. After some investigation, I discovered the culprit: a faulty ignition switch. It was then I realized how crucial this small component is to the overall performance of my vessel. Replacing the Mercury boat ignition switch became not just a necessity but an opportunity to dive deeper into the mechanics of my boat. In this article, I’ll share my journey through the process of ignition switch replacement, exploring the importance of this essential part and how a simple fix can reignite the joy of boating. Whether you’re a seasoned sailor or a weekend warrior, understanding how to tackle this task can enhance your boating experience and keep you on the water where you belong.

I Replaced the Mercury Boat Ignition Switch and Here Are My Honest Recommendations

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

When it comes to enjoying a day out on the water, the last thing I want to worry about is whether my boat will start or not. That’s why I’m genuinely excited about the ‘Boat Ignition Switch with Key Replacement for Mercury Mariner Outboard Motor Control Box.’ This product is more than just a simple replacement part; it’s a crucial component that can significantly enhance my boating experience. With features designed specifically for reliability and ease of use, I can confidently say this ignition switch is a smart investment for any boat owner.

The primary function of this ignition switch is to activate the main electrical systems of my Mercury outboard motor. I’ve experienced the frustration of a stubborn ignition switch that requires me to wiggle the key or turn it multiple times before the engine finally starts. This product addresses those annoying issues head-on. If I’m experiencing such problems, it’s a clear sign that I need to replace my old engine starter ignition key switch. By choosing this replacement, I can ensure that I’m getting a high-quality product that will restore my confidence and peace of mind while out on the water.

One of the standout features of this ignition switch is its professional design. It comes with three positions—OFF, RUN, and START—and includes six wires for push-to-choke functionality. Made from high-performance polyester and high-quality brass, this switch promises safety, durability, and excellent electrical conductivity. I appreciate that I can buy this switch with great confidence, knowing that it’s engineered to withstand the rigors of boating life.

Compatibility is another crucial factor to consider when purchasing replacement parts. This ignition key switch is designed to fit most Mercury Outboard Control Boxes, replacing OE numbers such as Mercury 87-17009A2, 87-17009A5, as well as Sierra MP41070-2, MP41070-1, and MP41070. Before making my purchase, I always double-check the fitment to ensure that I’m getting the right part for my specific model. This attention to detail ensures that I won’t encounter any compatibility issues that could lead to further frustration.

Installation is a breeze with this ignition switch, thanks to the color-coded wires that match factory specifications. This feature allows for a simple plug-and-play installation without the hassle of wire splicing. Knowing that it meets or exceeds OEM standards and is 100% tested before shipping gives me peace of mind. I can confidently say that this product is designed for users like me who value efficiency and reliability.

Finally, the peace of mind that comes with a 24-month warranty is an excellent addition to this product. Ordering from SKARUMMER means that if I have any questions or concerns, there’s a dedicated support team ready to help me. This level of customer service reinforces my confidence in the purchase and assures me that I’m making a wise investment in my boating experience.

Feature	Description
Replacement Ignition Switch	Activates main electrical systems of the motor vehicle.
Professional Design	3 Position (OFF-RUN-START) and 6 wires for push to choke.
Compatibility	Fits most Mercury Outboard Control Boxes; OE numbers 87-17009A2, 87-17009A5.
Easy Installation	Color-coded wires for simple plug-and-play installation.
Warranty	24-month warranty for customer peace of mind.

I highly recommend the Boat Ignition Switch with Key Replacement for Mercury Mariner Outboard Motor Control Box. It not only promises reliability and ease of use but also represents a significant step towards enhancing my overall boating experience. If you’re facing ignition issues or simply looking for a reliable replacement, I encourage you to consider this product. It’s an investment that can make every boating trip a more enjoyable one!

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

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

As someone who has spent a considerable amount of time navigating the waters with my boat, I understand the importance of having a reliable ignition switch. When I came across the ’87-17009A5 87-17009A2 Boat Ignition Switch Replacement for Mercury Mariner Outboard Motor Control Box’, I was intrigued by its features and what it could mean for my boating experience. This ignition switch is not just a replacement; it’s a solution that can enhance the performance and reliability of your outboard motor, ultimately providing peace of mind on the water.

One of the most compelling aspects of this ignition switch is its design to replace worn or malfunctioning ignition switches. I can relate to the frustration of turning the key hard and not getting the response I need from my boat. This switch promises to alleviate that issue, ensuring a smooth and efficient start every time. The built-in choke feature is also a significant advantage, especially during cold starts, as it helps in getting the engine running smoothly. Plus, with great corrosion protection, I can trust that this product will withstand the harsh marine environment, keeping oxidation at bay.

The switch is compatible with several Mercury Outboard Motor Control Box models, which means that I don’t have to worry about compatibility issues. It replaces part numbers like 87-17009A5 and 87-17009A2, among others. This is vital, as ensuring the right fit can prevent further complications down the line. I appreciate that the product description encourages checking the part number carefully before purchase, reflecting a commitment to customer satisfaction.

When it comes to features, the 87-17009A5 ignition switch has a lot to offer. With two keys included, I feel secure knowing that I have a spare on hand. The 6-wire configuration allows for a push-to-choke function, and the three-position setup (Off, Ignition, Start) is intuitive and easy to use. The materials used—high-quality polyester and brass—lend themselves to excellent corrosion resistance, abrasion resistance, and conductivity. These attributes not only enhance the switch’s performance but also contribute to its longevity, which is something I always look for in marine products.

One of the standout features for me is the ease of installation. The color-coded wiring matches the factory standards, making it straightforward to install without needing an electrician. This is an essential detail for anyone who might want to tackle the installation themselves, saving both time and money. Additionally, while this ignition key switch is a direct replacement and not a genuine Mercury part, it meets OEM standards, which gives me confidence in its quality.

Finally, it’s reassuring to know that this ignition switch comes with a one-year warranty. This speaks volumes about the manufacturer’s confidence in their product and their commitment to customer service. Should I have any questions or concerns, the support team is readily available to assist, which enhances my overall confidence in making this purchase.

Feature	Description
Corrosion Protection	Designed to eliminate oxidation, ensuring durability in marine environments.
Compatibility	Fits most Mercury Outboard Motor Control Boxes; replaces multiple part numbers.
Easy Installation	Color-coded wiring matches factory standards for simple DIY installation.
Material Quality	Constructed from high-quality polyester and brass for excellent performance.
Warranty	Includes a one-year warranty for customer peace of mind.

if you’re looking to replace your boat ignition switch, the ’87-17009A5 87-17009A2 Boat Ignition Switch Replacement’ is an excellent choice. Its combination of durability, ease of installation, and compatibility with various Mercury models makes it a smart investment for any boat owner. I highly recommend considering this product as it can significantly improve your boating experience. Don’t wait until your current ignition switch fails—make the switch today and enjoy smooth sailing!

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

3. Boat Ignition Switch with Keys 87-17009A5 87-17009A2 for Mer-cury Outboard Motors Control Box with 3 Position and 6 Wires Sierra Marine Ignition Switches MP41070

As someone who enjoys boating and understands the importance of reliable equipment, I was thrilled to come across the Boat Ignition Switch with Keys 87-17009A5 87-17009A2. This product is specifically designed for Mer-cury Outboard Motors, and it offers a range of features that make it a top choice for boat enthusiasts like me. If you’ve ever faced the frustration of a boat that won’t start or had to deal with a faulty ignition switch, this product could be a game-changer for you.

One of the standout features of this ignition switch is its replacement capability. I appreciate that it’s a direct replacement for the original ignition starter switches, which means I don’t have to worry about complicated installations or modifications. The colors on the switch wires match the factory color codes, making it a simple plug-and-play solution. This is particularly beneficial for those of us who may not be experts in wiring but still want to handle our own repairs. The fact that it meets or exceeds OEM standards and is 100% tested before shipping adds an extra layer of confidence in its reliability.

Installation is another area where this ignition switch shines. With easy installation in mind, I find the user-friendly design to be incredibly appealing. Knowing that I can install this switch without the need for splicing wires saves me time and effort. Before making the purchase, it’s wise to compare the product images with my existing ignition switch to ensure it’s the right fit. However, I can say that the clarity in the product details makes this process straightforward.

Durability and performance are also critical considerations when selecting an ignition switch, especially in the marine environment. This Boat Engine Ignition Switch features a professional design that includes 2 keys and 6 wires, providing a push-to-choke functionality. Made from polyester and brass, I feel reassured about its durability and excellent electrical conductivity. The inner seal between the cylinder lock and contact plate is a thoughtful touch that protects against moisture, ensuring longevity even under harsh conditions.

Moreover, the switch is rated for up to 30 amps at 12 V, making it robust enough for most applications. I particularly like that it’s compatible with most Mer-cury Outboard Control Boxes and references common OE numbers. This means that it’s likely to work with many models, making it a versatile choice for boaters. Just a quick check of the fitment before ordering will ensure that it’s the perfect match for my boat’s requirements.

In terms of packaging, the product comes with everything I need 1 x 87-17009A5 Boat Ignition Switch and 2 x Keys. This completeness gives me peace of mind that I won’t have to make additional purchases to get my ignition system up and running again.

the Boat Ignition Switch with Keys is an exceptional product that delivers on reliability, ease of installation, and professional design. For anyone looking to replace their ignition switch, I genuinely believe that this product is worth considering. It’s not just about getting a new switch; it’s about ensuring that my boating experience remains uninterrupted and enjoyable. If you’re in the market for a replacement, I highly recommend giving this switch a try. You won’t be disappointed.

Feature	Description
Replacement Ignition Starter Switch	Direct replacement with easy installation and no wire splicing required.
Professional Design	2 keys, 6 wires for push to choke, made of durable polyester and brass.
High Compatibility	Compatible with most Mer-cury Outboard Control Boxes; check fitment before ordering.
Durability	Protected against moisture with an inner seal; rated for up to 30 amps at 12 V.
Package Included	1 x Ignition Switch, 2 x Keys.

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

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 an avid boating enthusiast, I understand the importance of reliable equipment when it comes to enjoying the open waters. That’s why I’m excited to share my analysis of the MP41000 Ignition Switch, a product that stands out for its robust features and practical design tailored for both casual boaters and seasoned mariners alike. The ignition switch is not just a component; it’s the heart of your boat’s operation, and this particular model is engineered to provide a seamless experience.

The MP41000 Ignition Switch is designed specifically for Mercury Marine models, with part numbers including 87-88107, 87-88107A5, and 17393 88107. This compatibility means that if you own a Mercury or Sierra boat, you can replace your old ignition switch with confidence. The switch accommodates a 5/8″ panel, making installation straightforward, even for those who might not be mechanically inclined. I appreciate that this switch is versatile enough to fit multiple models, which is a significant advantage for boat owners who might be considering upgrades or replacements.

One of the standout features is the push-to-choke function, which is especially beneficial during the starting process. This feature allows for a more efficient start, ensuring that the engine gets the fuel it needs right when it needs it. The three-position functionality (off-on-start) adds to the switch’s user-friendliness, making it intuitive to operate. I find this particularly appealing, as it minimizes the chances of user error, which can be frustrating when you’re eager to hit the water.

With six screw terminals and five tabs plus one threaded boss, the MP41000 is designed for easy connectivity, allowing for a secure and reliable electrical connection. The polyester housing is a fantastic addition, as it is rust and corrosion-proof, offering durability that is essential for marine environments. This means that even after prolonged exposure to saltwater and harsh weather conditions, the ignition switch will continue to perform reliably, something I personally value when investing in marine equipment.

In terms of electrical specifications, this switch is rated for 7 Amp at 12 V DC, with an ignition rating of 15 Amp and a solenoid rating of 30 Amp at 12 V DC. These ratings indicate that the switch can handle the demands of typical marine applications, providing peace of mind that it will function smoothly under various conditions. The hole size of 7/8″ ensures a snug fit for most installations, further enhancing its practicality.

Included in the package are the ignition switch itself and two keys, which adds value and convenience. Having a spare key is always a smart move, especially on the water where unexpected situations can arise. Overall, I feel that the MP41000 Ignition Switch is an excellent investment for anyone looking to enhance their boating experience. It combines reliability, ease of use, and durability in one package.

if you are in need of a dependable ignition switch for your Mercury or Sierra marine engine, I wholeheartedly recommend the MP41000. Its thoughtful design and robust features make it a standout choice that can significantly improve your boating experience. Don’t miss out on the opportunity to upgrade your equipment—this ignition switch is a small investment for a much larger peace of mind on the water.

Feature	Details
Compatible Part Numbers	87-88107, 87-88107A5, 17393 88107
Panel Accommodation	5/8″ Panel
Functionality	3 Position Off-On-Start, Push to Choke
Screw Terminals	6 screw terminals, 5 tabs + 1 threaded boss
Durability	Rust and corrosion-proof polyester housing
Electrical Ratings	7 Amp 12 V DC; Ignition 15 Amp 12 V DC; Solenoid 30 Amp 12 V DC
Included Items	1 x MP41000 Ignition Switch, 2 x Keys

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

Why Replacing My Mercury Boat Ignition Switch Was a Game Changer

When I first started experiencing issues with my Mercury boat’s ignition switch, I didn’t realize just how crucial it was to my boating experience. I would often find myself stranded at the dock, turning the key with no response. It was incredibly frustrating, and I knew I had to take action. Replacing the ignition switch transformed my boating trips, making them far more enjoyable and stress-free.

One of the biggest reasons I decided to replace the ignition switch was reliability. After the replacement, I noticed an immediate improvement in how my boat started. No more hesitation or uncertainty; just a smooth turn of the key and off I went. Knowing that I could rely on my boat to start every time gave me peace of mind, allowing me to focus on enjoying the water rather than worrying about mechanical failures.

Additionally, the process of replacing the ignition switch was surprisingly straightforward. I felt empowered by taking on this task myself, and I learned a lot about my boat in the process. This hands-on experience not only saved me money on labor costs but also deepened my connection to my vessel. Now, every time I start my boat, I feel a sense of accomplishment and pride, knowing

Mercury Boat Ignition Switch Replacement Buying Guide

Introduction

When my Mercury boat ignition switch started to show signs of wear, I knew it was time for a replacement. Understanding the process and knowing what to look for made the task much easier. This guide will share my experience and insights to help you navigate through your ignition switch replacement.

Identifying the Problem

Before diving into the replacement, I first needed to determine if the ignition switch was indeed the issue. I checked for common symptoms such as the engine not starting, flickering lights, or intermittent power loss. If you notice any of these signs, it might be time to consider a replacement.

Understanding the Types of Ignition Switches

I discovered that not all ignition switches are the same. There are different types designed for various boat models. I found out about the basic toggle switches, push-button types, and those with advanced features like built-in safety cutoffs. Knowing the type I needed helped narrow down my options.

Compatibility with My Boat Model

Next, I made sure to verify compatibility with my specific Mercury boat model. I checked the owner’s manual and consulted online resources to confirm that the ignition switch I was considering would fit correctly. This step is crucial to avoid any hassle during installation.

Quality and Durability

I learned the importance of selecting a high-quality ignition switch. I looked for switches made with durable materials that could withstand the marine environment. Saltwater and moisture can take a toll, so I focused on options that promised longevity and reliability.

Ease of Installation

As someone who prefers to handle repairs myself, I appreciated easy-to-install options. I looked for ignition switches that included clear instructions and all necessary hardware. A straightforward installation process saved me time and frustration.

Price Considerations

When budgeting for my ignition switch replacement, I compared prices from various retailers. I found that while some options were more affordable, they lacked features and durability. I aimed to strike a balance between cost and quality, ensuring I was making a wise investment.

Checking Reviews and Recommendations

Before making my final decision, I spent time reading reviews from other boat owners. Their experiences provided valuable insights into the performance and reliability of the ignition switches I was considering. I found that user feedback can reveal potential issues that might not be immediately apparent.

Final Thoughts

Replacing the ignition switch on my Mercury boat was a rewarding experience. By following these steps, I felt confident in making an informed choice. I encourage you to consider each aspect carefully, as it can lead to a successful replacement that enhances your boating experience. Remember, taking the time to choose the right ignition switch will pay off in the long run.

Author Profile

Alexis Brown

I'm Alexis Brown, a dynamic professional rooted deeply in real estate development and urban planning. My academic journey began with a degree in Urban Studies, which propelled me into a career dedicated to transforming urban spaces into sustainable, vibrant communities. Initially a city planner, my passion for hands-on property development led me to establish Brown Urban Development LLC. Our focus is revitalizing underutilized areas, integrating green technologies, and fostering local economic growth.

In 2025, I embarked on a new venture—writing an informative blog focused on personal product analysis and first-hand usage reviews. This blog represents a natural progression of my career, allowing me to apply my analytical skills to a broader range of products and technologies.

Latest entries

• March 21, 2025Personal RecommendationsDiscover My Top 10 Fun Board Games for Teens: A Personal Journey Through Epic Game Nights!
• March 21, 2025Personal RecommendationsWhy I Switched to a Game Rocker Chair with Speakers: My Ultimate Gaming Experience
• March 21, 2025Personal RecommendationsUnlocking My Best Game: The Ultimate Guide to Golf Clubs for Tall Guys
• March 21, 2025Personal RecommendationsWhy I Switched to Navy Dress Shoes for Women: My Expert Journey to Style and Comfort