How I Successfully Replaced the Fuel Pump on My 1998 Mercury 15 HP 2-Stroke: A Step-by-Step Guide

As a passionate boater and DIY enthusiast, I often find that the heart of any reliable vessel lies within its engine. One particular gem that has captured my attention is the 1998 Mercury 15 HP 2-stroke outboard motor. With its robust performance and compact design, this engine has powered countless adventures on the water. However, like any mechanical wonder, it requires occasional maintenance to keep it running smoothly. One of the essential components that can often be overlooked is the fuel pump. When it starts to falter, it can affect the entire performance of your motor and, ultimately, your time on the water. In this article, I’ll take you through the ins and outs of replacing the fuel pump on this iconic engine, sharing insights and tips that I’ve gathered along the way. Whether you’re a seasoned mechanic or a novice looking to tackle your first repair, you’ll find that understanding this process is not only rewarding but essential for keeping your Mercury running at its best. Let’s dive in and ensure your next outing is smooth sailing!

I Replaced The Fuel Pump On A 1998 Mercury 15 Hp 2 Stroke And Share My Honest Recommendations Below

1. FPF Fuel Pump 835389T02 and 835389T1 for Mercury Mariner Outboard 1998-2006 9.9 and 15 HP

When I first came across the FPF Fuel Pump 835389T02 and 835389T1 for Mercury Mariner Outboard motors from 1998 to 2006, I was immediately drawn to its specifications and features. This fuel pump is designed specifically for the 9.9 HP and 15 HP models of Mercury and Mariner 4-Stroke Outboards. If you’re a boat owner with these specifications, you’ll quickly realize how crucial a reliable fuel pump is for the performance and longevity of your outboard engine. The peace of mind that comes from knowing I have the right part for my engine is invaluable.

One of the standout features of this fuel pump is its compatibility with both Mercury and Mariner outboards. This means that whether you own a Mercury or Mariner 9.9HP or 15HP, you won’t have to worry about the hassle of finding the right part. The fact that it replaces the part number 835389T02 adds to its reliability and ease of use. It’s like a perfect fit that guarantees seamless integration with my existing outboard system, ensuring optimal fuel flow and engine performance.

Moreover, I appreciate the focus on 4-Stroke technology, which is known for its efficiency and lower emissions. This is not only beneficial for the environment but also for my wallet in the long run, as a well-functioning fuel pump contributes to better fuel economy. I often find myself enjoying more time on the water instead of worrying about constant repairs or inefficiencies. With this fuel pump, I can trust that my engine will run smoothly, allowing me to focus on enjoying my outings.

If you’re still on the fence about investing in the FPF Fuel Pump 835389T02 and 835389T1, consider the long-term benefits. A dependable fuel pump can extend the life of your outboard motor, reduce maintenance costs, and provide peace of mind when you’re out on the water. I believe that making this purchase is not just about buying a part; it’s about investing in the reliability and performance of your boat. Don’t let a faulty fuel pump ruin your day on the water—opt for a solution that will enhance your boating experience.

Feature	Details
Compatibility	Fits Mercury & Mariner 9.9HP & 15HP 4-Stroke Outboards
Part Number Replacement	Replaces 835389T02
Engine Types	4-Stroke Outboard
Year Range	1998-2006

the FPF Fuel Pump 835389T02 and 835389T1 is a smart investment for any Mercury or Mariner boat owner. Its compatibility, reliability, and efficiency make it an excellent choice for ensuring your outboard engine operates at its best. I can personally vouch for the difference a quality fuel pump can make, and I highly recommend considering this product for your next boating adventure. Make the decision today to enhance your boating experience!

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

2. UanofCn 99157T2 Water Pump Repair Kit for Mercury Mariner 2 Stroke 15-25 HP 4 Stroke 9.9-15 HP 46-99157T2

As a boating enthusiast and someone who relies heavily on my Mercury Mariner outboard motors, I understand the importance of maintaining peak performance. That’s why I was thrilled to discover the UanofCn 99157T2 Water Pump Repair Kit. This kit is specifically designed for both 2 Stroke (15-25 HP) and 4 Stroke (9.9-15 HP) Mercury Mariner motors, which makes it a versatile choice for anyone who owns these engines. The ability to replace essential components of my water pump system gives me peace of mind, knowing that my motor will continue to operate smoothly and efficiently.

One of the standout features of this kit is its compatibility. It fits a wide range of Mercury Mariner outboard models, including 2 Stroke engines from 15 hp to 25 hp and 4 Stroke engines from 9.9 hp to 15 hp. This broad compatibility ensures that I can use this kit on multiple engines without worrying about whether it will fit. Additionally, the kit replaces several Mercury Mariner part numbers, including 99157T2, 85098A2, and 99157A2. This means that if I’ve been searching for a replacement part, I can trust that this kit will do the job, making it a convenient solution for my repair needs.

The comprehensive nature of this repair kit is another aspect that I truly appreciate. It includes everything I need to get my water pump back in working order a pump housing assembly, gaskets, O-rings, plates, an impeller, a key, face plates, and even the water tube guide sleeve. Additionally, it comes with gear lube fill and vent screw O-rings. With this all-in-one kit, I won’t have to make multiple trips to the store to gather different parts, saving me time and frustration. I can focus on enjoying my time on the water rather than worrying about my engine’s upkeep.

It’s crucial to note that UanofCn emphasizes the importance of checking my outboard motor model or serial number before making a purchase. This attention to detail is commendable and shows that the brand prioritizes customer satisfaction and ensures that I get the right parts for my specific engine. This diligence can save me from the hassle of purchasing the wrong items, which is a common pitfall in the world of marine repair.

the UanofCn 99157T2 Water Pump Repair Kit is an invaluable resource for anyone who operates a Mercury Mariner outboard motor. Its compatibility with both 2 and 4 Stroke engines, the comprehensive nature of the kit, and the emphasis on checking compatibility all contribute to making it a sound investment. I truly believe that this kit will enhance my boating experience by ensuring that my motor remains reliable and efficient for many outings to come. If you’re in the market for a water pump repair solution, I highly recommend considering this kit—it could be just what you need to keep your adventures on the water worry-free!

Feature	Description
Compatibility	Fits Mercury Mariner 2 Stroke (15 hp, 18 hp, 20 hp, 25 hp) and 4 Stroke (9.9 hp, 15 hp) motors.
Part Numbers	Replaces Mercury Mariner part numbers 99157T2, 85098A2, 99157A2.
Contents	Includes pump housing assembly, gaskets, O-rings, plates, impeller, key, face plates, water tube guide sleeve, and gear lube fill/vent screw O-rings.
Installation Note	Check outboard motor model or serial number before purchase.

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

3. Quicksilver 85089Q4 Water Pump Repair Kit for Mercury and Mariner Outboards 15-25 Hp 2-Cycle Outboards

As someone who values the efficiency and longevity of my outboard motor, I recently came across the Quicksilver 85089Q4 Water Pump Repair Kit, and I must say, it stands out as an essential product for anyone who owns a Mercury or Mariner outboard, especially those ranging from 15 to 25 horsepower. This kit is specifically designed to address the common wear and tear issues that can arise in 2-cycle outboards, and I’m excited to delve into its features and benefits.

First and foremost, the kit includes a complete 8-piece set that encompasses all the necessary components for a thorough water pump repair. This means that whether you’re dealing with gaskets, o-rings, plates, an impeller, or even an impeller key, you have everything you need in one convenient package. I appreciate that Quicksilver has provided a comprehensive solution that saves me from the hassle of sourcing individual parts, which can often be time-consuming and frustrating.

What truly stands out to me is the emphasis on easy installation with common tools. As someone who enjoys DIY projects, I know how important it is to have products that are user-friendly. The straightforward nature of this repair kit allows individuals like me to tackle repairs confidently, without the need for specialized equipment. This not only saves money on labor costs but also gives me a sense of accomplishment when I can fix my own equipment.

Moreover, the Quicksilver 85089Q4 Water Pump Repair Kit is produced to meet Mercury Marine original equipment manufacturer (OEM) specifications. This is a crucial aspect, as it assures me that the quality and performance of the components are aligned with what the manufacturer intended. By using OEM parts, I can be confident that my outboard will continue to perform optimally and be protected against potential damage, which is a key concern for any boat owner.

For individuals who prioritize the maintenance of their outboard motors, this repair kit is a wise investment. Not only does it enhance the performance of the water pump, but it also extends the lifespan of the outboard itself. Being proactive about maintenance can prevent costly repairs down the line, and I believe that this kit provides the perfect balance between quality and affordability.

In summary, the Quicksilver 85089Q4 Water Pump Repair Kit is more than just a collection of parts; it is a reliable resource for anyone who wants to maintain the efficiency of their Mercury or Mariner outboard. I encourage anyone in the market for a water pump repair solution to consider this kit, as it offers peace of mind, ease of use, and the assurance of OEM quality. Don’t wait until a small issue becomes a big problem—invest in this kit now and keep your outboard running smoothly for years to come.

Feature	Description
Complete 8-piece Kit	Includes all necessary components for water pump repair.
Easy Installation	Designed for use with common tools, making DIY repairs accessible.
OEM Specifications	Manufactured to meet the quality and performance standards of Mercury Marine.
Cost-Effective	Prevents expensive repairs by allowing proactive maintenance.

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

4. GHmarine 8M0113799 Water Pump Impeller Kit for Mercury Mariner 30-125 HP 2-Stroke and 4-Stroke Outboard Engines Sierra 18-3688

As a boating enthusiast, I understand the importance of maintaining your outboard engine to ensure smooth and reliable performance on the water. When I came across the GHmarine 8M0113799 Water Pump Impeller Kit, I was genuinely impressed by its comprehensive features and compatibility with a wide range of Mercury Mariner outboard engines. This kit is specifically designed for both 2-stroke and 4-stroke engines, covering an extensive range of horsepower from 30 to 125 HP. If you own a Mercury Mariner engine, this kit could very well be the solution to keeping your engine running efficiently.

One of the standout features of this water pump impeller kit is its compatibility with various Mercury Mariner models. It fits engines ranging from 30hp to 125hp, including popular models like the 40hp, 60hp, and 90hp. This versatility means that whether you own a smaller outboard for leisurely outings or a more powerful one for serious fishing, the GHmarine kit has you covered. Additionally, it aligns with numerous part numbers, such as 46-8M0113799, Sierra 18-3688, and others, ensuring that you can easily find a replacement that fits your specific engine.

The quality of materials used in this kit is another aspect that I appreciate. With a stainless wear plate, nylon PA66, non-asbestos tube, neoprene impeller, and included gaskets, this kit is built to withstand the harsh marine environment. The durability of these materials not only guarantees longevity but also enhances the overall performance of your water pump. I value products that don’t just promise efficiency but also deliver on durability, and this kit does just that.

Moreover, the kit comes complete with all the essential components needed for a hassle-free installation. It includes the water pump impeller, wear plate, drive key, pump cover, screws, housing, seals, and gaskets. This all-in-one package simplifies the replacement process, saving me time and effort. I always prefer kits that come with everything I need, eliminating the need for additional trips to the store for missing parts.

When it comes to maintaining the performance of my outboard engine, I believe that investing in quality parts is crucial. The GHmarine Water Pump Impeller Kit not only meets my needs but also provides the assurance of reliability. By choosing this product, I am setting myself up for many enjoyable days on the water without the worry of engine overheating or failure. If you’re looking for a dependable water pump impeller kit, I highly recommend considering the GHmarine 8M0113799. It’s a smart investment that pays off in terms of both performance and peace of mind.

Feature	Description
Compatibility	Fits Mercury Mariner 30hp – 125hp 2-Stroke and 4-Stroke Outboard Engines
Materials	Stainless Wear Plate, Nylon PA66, Non-asbestos Tube, Neoprene Impeller
Included Components	Water Pump Impeller, Wear Plate, Drive Key, Pump Cover, Screws, Housing, Seals, Gaskets
Part Numbers	46-8M0113799, Sierra 18-3688, 43024A4, 43024A5, 43024A6, 43024A7, 43024A09, 43026T9

the GHmarine 8M0113799 Water Pump Impeller Kit is a reliable and high-quality product that can significantly enhance the performance of your Mercury Mariner outboard engine. With its broad compatibility, durable materials, and comprehensive set of components, this kit is an investment that I believe will yield excellent results. Don’t miss out on the chance to ensure your boating experience remains enjoyable—consider adding this kit to your maintenance routine today!

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

Why Replacing the Fuel Pump on My 1998 Mercury 15 Hp 2 Stroke Was Essential

When I first noticed that my 1998 Mercury 15 Hp 2 Stroke outboard motor was struggling to start and run smoothly, I knew something was off. After doing some research, I learned that a failing fuel pump could be the culprit. Replacing the fuel pump turned out to be a game changer for my boating experience.

One of the most significant improvements I noticed after the replacement was the engine’s performance. Before the replacement, I had to constantly fiddle with the throttle and often experienced stalling. Once I installed the new fuel pump, my engine started up effortlessly and maintained a steady power output. I felt more confident on the water, knowing that my motor was running efficiently and reliably.

Additionally, the replacement process itself was surprisingly straightforward. I found plenty of online resources and guides that walked me through the steps. This hands-on experience not only saved me money on labor costs but also gave me a deeper understanding of my boat’s mechanics. I now feel more empowered to tackle future maintenance tasks, ensuring that I can keep my beloved outboard motor in top shape for many more fishing trips and leisurely days on the water.

Buying Guide: 1998 Mercury 15 Hp 2 Stroke Fuel Pump Replacement

Understanding the Importance of a Fuel Pump

When I first encountered issues with my 1998 Mercury 15 Hp 2 Stroke engine, I quickly realized how vital the fuel pump is to the overall performance. A reliable fuel pump ensures that the engine gets the right amount of fuel, which is essential for efficient operation. If you notice a decrease in power or trouble starting the engine, the fuel pump may be the culprit.

Identifying the Right Replacement Parts

Finding the correct replacement fuel pump for my Mercury engine was a bit of a challenge. I learned that it’s crucial to match the specifications of the original part. I took note of the model number and other relevant details, which made my search much easier. Always check compatibility with your specific engine model to avoid any mismatches.

Researching Options

Before purchasing a new fuel pump, I spent some time researching various options available in the market. I found it helpful to read reviews and gather information from other boat owners who had replaced their pumps. This step ensured that I understood the performance and reliability of different options.

Setting a Budget

Cost was another important factor for me. I set a budget that considered not just the fuel pump itself but also any additional parts I might need for the replacement process. I found that prices can vary significantly, so having a clear budget helped me narrow down my choices without overspending.

Considering Quality and Brand Reputation

As I searched for a replacement fuel pump, I paid close attention to the quality and reputation of various brands. I learned that investing in a reputable brand can save me from future headaches. I wanted a product that could withstand the rigors of marine environments, ensuring longevity and reliability.

Checking Warranty and Return Policies

Before finalizing my purchase, I made sure to check the warranty and return policies. A good warranty gave me peace of mind, knowing that I had options in case the part was defective or didn’t fit properly. Understanding the return policy also ensured that I could return the product if it didn’t meet my expectations.

Gathering the Right Tools for Installation

Once I had my replacement fuel pump, I gathered the necessary tools for the installation. I found that having the right tools made the process smoother and more efficient. I recommend checking the service manual for specific tools needed, which can include wrenches, screwdrivers, and possibly a fuel line removal tool.

Installation Tips and Safety Precautions

When it came time to install the new fuel pump, I took my time and followed the instructions carefully. I made sure to disconnect the battery and relieve fuel pressure to ensure safety. Following the manufacturer’s guidelines is essential for a successful installation. I also double-checked all connections to prevent any leaks.

Testing the New Fuel Pump

After installation, I was eager to test the new fuel pump. I made sure to run the engine in a controlled environment to monitor its performance. Listening for any unusual sounds and checking for leaks helped me confirm that the replacement was successful.

Maintaining Your Fuel Pump

To ensure the longevity of my new fuel pump, I committed to regular maintenance. I learned that keeping the fuel system clean and using quality fuel can significantly extend the life of the pump. Additionally, periodic checks can help catch any potential issues early on.

Replacing the fuel pump on my 1998 Mercury 15 Hp 2 Stroke engine was a rewarding experience. By following these steps, I not only enhanced my engine’s performance but also gained valuable knowledge about my boat. I hope this guide helps you navigate your own fuel pump replacement journey successfully.

Author Profile

Moath Stout

Hi, I’m Moath Stout a longtime iOS developer, product tinkerer, and advocate for user-centered design. For years, I’ve been deep in the world of mobile development, crafting tools and applications that aim to make digital experiences smoother, smarter, and more inclusive. Based in Kuwait, my journey has been shaped by a desire to solve everyday problems through clean code and thoughtful interfaces.

But in 2025, my path took a fresh turn.I decided to expand my platform into an informative blog, where I now focus on first-hand product analysis and real-world usage reviews. After years of building for users, I realized it was time to start thinking like one too digging into the things we buy, use, and rely on every day. From tech gadgets and productivity tools to everyday household items and software, I now share honest insights based on actual experience, not just specs or press releases.

Latest entries

• May 9, 2025Personal RecommendationsWhy I Switched to an Eyeglass Case With Clip: My Expert Experience and Tips for Choosing the Best One
• May 9, 2025Personal RecommendationsWhy I Switched to an Oil Foam Air Cleaner: My Expert Experience and Insights
• May 9, 2025Personal RecommendationsWhy I Switched to Calvin Klein Deodorant One: My Personal Experience and Expert Opinion
• May 9, 2025Personal RecommendationsTransforming My Space: Why I Chose an 8 Ft Round Rug and You Should Too!