How I Successfully Replaced the Fuel Pump on My 1998 Mercury 15 HP 2-Stroke: A Step-by-Step Guide
When I first embarked on my journey into the world of boating, I quickly learned that maintaining my vessel was just as important as the adventures it took me on. One such experience that stands out in my mind is the day I faced a challenge with my 1998 Mercury 15 Hp 2 Stroke outboard motor. The heart of my engine—the fuel pump—was giving me trouble, and I knew I had to act fast to keep my excursions on the water uninterrupted. In this article, I’ll share my insights on replacing the fuel pump in my trusty outboard, a task that not only restored my boat’s performance but also deepened my understanding of marine mechanics. Whether you’re a seasoned boater or a newcomer like I was, understanding the nuances of fuel pump replacement can empower you to tackle similar challenges and keep your engine running smoothly for years to come.
I Personally Replaced the Fuel Pump on My 1998 Mercury 15 Hp 2 Stroke and Here Are My Honest Recommendations

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

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

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

TXRXIZ Fuel Pump Compatible with Mercury Outboard Parts 2 Stroke 30-300 HP Marine Fuel Pump Models 14360A14 14360A15 14360A24 14360A41 14360A50 14360A71 14360A78 99357A4, Etc
1. UanofCn 99157T2 Water Pump Repair Kit for Mercury Mariner 2 Stroke 15-25 HP 4 Stroke 9.9-15 HP 46-99157T2

When it comes to maintaining the performance of my Mercury Mariner outboard motors, I know that a reliable water pump repair kit is crucial. That’s why I’m excited to delve into the UanofCn 99157T2 Water Pump Repair Kit, specifically designed for Mercury Mariner 2 Stroke (15-25 HP) and 4 Stroke (9.9-15 HP) engines. Having used various repair kits in the past, I can confidently say that this kit stands out for its comprehensive components and compatibility.
One of the standout features of the UanofCn 99157T2 kit is its broad compatibility with multiple Mercury Mariner models. It caters to 2 Stroke motors ranging from 15 HP to 25 HP and 4 Stroke motors from 9.9 HP to 15 HP. This versatility means that if I own one of these outboards, I’m almost guaranteed that this kit will work perfectly for my needs. However, I cannot emphasize enough the importance of checking my outboard motor model or serial number before making the purchase. It’s a simple step that can save a lot of hassle later on!
What really impresses me about this kit is the extensive array of components included. The package contains everything I need to get my water pump back in tip-top shape a pump housing assembly, gaskets, O-rings, plates, an impeller, a key, face plates, a water tube guide sleeve, and gear lube fill and vent screw O-rings. This thorough assortment not only saves me time, as I don’t have to hunt for individual parts, but it also ensures that I have all the necessary components to restore my water pump’s functionality.
Another critical aspect to consider is the quality of the materials and parts. The UanofCn kit is designed to replace several Mercury Mariner part numbers, including 99157T2, 85098A2, and 99157A2. This compatibility with original equipment manufacturer (OEM) parts suggests that the kit is built to last, which is vital for anyone who wants to maintain peak performance in their outboard motors. Knowing that I’m investing in a reliable product gives me peace of mind, especially when I’m out on the water.
For someone like me who enjoys boating, fishing, or simply spending time on the water, maintaining my outboard motor is not just about keeping it functional; it’s about ensuring safety and enjoyment. A malfunctioning water pump can lead to overheating and severe engine damage, which is why having a quality repair kit like the UanofCn 99157T2 is essential. By investing in this kit, I’m not just buying parts; I’m safeguarding my time on the water and avoiding costly repairs down the road.
I highly recommend the UanofCn 99157T2 Water Pump Repair Kit for anyone who owns a compatible Mercury Mariner outboard motor. The combination of quality parts, comprehensive compatibility, and the assurance of OEM replacements makes it a smart choice for any boat owner. If you’re serious about keeping your motor in excellent condition, this kit is a worthwhile investment. Don’t wait until you’re stuck on the water to make this purchase—ensure your peace of mind today!
Feature Description Compatibility Fits Mercury Mariner 2 Stroke (15-25 HP) and 4 Stroke (9.9-15 HP) motors Included Components Pump Housing Assembly, Gaskets, O-ring, Plates, Impeller, Key, Face Plates, Water Tube Guide Sleeve, Gear Lube Fill and Vent Screw O-rings Replacements Replaces part numbers 99157T2, 85098A2, 99157A2 Importance of Checking Verify motor model or serial number before purchase
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2. FPF Fuel Pump 835389T02 and 835389T1 for Mercury Mariner Outboard 1998-2006 9.9 and 15 HP

As a proud owner of a Mercury Mariner outboard motor, I understand the importance of having reliable components to ensure optimal performance on the water. This is why I was genuinely excited to discover the FPF Fuel Pump 835389T02 and 835389T1, specifically designed for Mercury Mariner outboards from 1998 to 2006 with 9.9HP and 15HP engines. After thoroughly analyzing its features and implications, I believe this fuel pump could be a game changer for anyone looking to maintain or upgrade their outboard motor.
First and foremost, the compatibility of this fuel pump is remarkable. It is designed to fit the Mercury Mariner 9.9HP and 15HP 4-Stroke Outboards, which means that if you own one of these models, you’re in luck! With part numbers 835389T02 and 835389T1, you can rest assured that this replacement part will seamlessly integrate into your engine’s existing setup. This compatibility not only simplifies the replacement process but also ensures that you are using a product specifically engineered for your outboard motor, which can significantly enhance performance and reliability.
One of the standout features of the FPF Fuel Pump is its high-quality construction. Designed to withstand the rigors of marine environments, this fuel pump is built to last. The materials used in its manufacture ensure that it can resist corrosion and wear, which are common issues faced by outboard motors. Knowing that I have a durable and reliable fuel pump gives me peace of mind, especially during long days out on the water. I wouldn’t want to be stranded due to a fuel pump failure, and with this product, I feel more secure.
Moreover, the ease of installation is another significant advantage. If you’re like me and enjoy a hands-on approach to maintenance, you’ll appreciate how straightforward it is to replace the fuel pump. With minimal tools required and clear instructions typically provided, I found that I could perform the replacement myself without needing to hire a mechanic. This not only saves me money but also gives me the satisfaction of knowing that I’ve taken care of my motor myself.
The performance benefits of the FPF Fuel Pump cannot be overstated. A well-functioning fuel pump is critical for ensuring that your engine runs smoothly and efficiently. With this pump, I’ve noticed improved fuel flow and engine responsiveness, which translates to a better overall boating experience. Whether I’m fishing, cruising, or just enjoying time on the water, having reliable power at my fingertips is invaluable.
Finally, I believe that investing in the FPF Fuel Pump is a wise decision for any Mercury Mariner owner. The combination of its compatibility, durability, ease of installation, and performance benefits makes it a standout choice in the market. If you’re looking to enhance your outboard’s functionality and reliability, I strongly encourage you to consider this product. It’s a small investment that can make a significant difference in your boating adventures.
Feature Description Compatibility Fits Mercury Mariner 9.9HP & 15HP 4-Stroke Outboards Part Numbers Replaces 835389T02 and 835389T1 Durability Built to withstand marine environments and resist corrosion Installation Easy installation process with minimal tools required Performance Improved fuel flow and engine responsiveness
the FPF Fuel Pump 835389T02 and 835389T1 is an excellent investment for any Mercury Mariner owner looking to enhance their outboard motor’s performance. With its compatible design, durable construction, and easy installation, it’s a product that truly stands out in the market. Don’t hesitate to make this addition to your boating gear; I know you won’t regret it!
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3. Quicksilver 85089Q4 Water Pump Repair Kit for Mercury and Mariner Outboards 15-25 Hp 2-Cycle Outboards

As someone who enjoys spending time on the water, I understand the importance of maintaining my outboard motor in top shape. When it comes to keeping my Mercury or Mariner outboard running smoothly, I know that having the right tools and parts is crucial. That’s why I was excited to come across the Quicksilver 85089Q4 Water Pump Repair Kit. This kit is specifically designed for 15-25 Hp 2-cycle outboards, and I can confidently say that it is an essential addition to any boater’s maintenance toolkit.
The Quicksilver 85089Q4 Water Pump Repair Kit is a complete 8-piece set that includes everything I need to get my water pump functioning as it should. The kit contains gaskets, o-rings, plates, an impeller, and an impeller key, which makes the installation process straightforward and efficient. I appreciate that I can use common tools to perform the repairs, making it accessible for even those who may not be highly experienced in mechanical work. This feature is particularly beneficial for individuals like me who prefer to tackle maintenance tasks themselves rather than relying on a professional.
One of the standout features of this repair kit is its adherence to Mercury Marine’s original equipment manufacturer specifications. This means that I can trust the quality and compatibility of the components included in the kit. By using parts that are produced to such high standards, I can ensure that my outboard motor is well-protected, which ultimately prolongs its lifespan and optimizes its performance. Knowing that I am using reliable parts gives me peace of mind when I’m out on the water, as I can focus on enjoying my time rather than worrying about potential mechanical issues.
Furthermore, the ease of installation cannot be overstated. The comprehensive nature of the kit means that I have everything I need at my fingertips, reducing the chances of having to make multiple trips to the store for missing pieces. This is especially important during the boating season when I want to spend as much time as possible on the water, not in the garage. It’s a straightforward solution that saves me both time and hassle, allowing me to get back to what I love most—boating.
In summary, the Quicksilver 85089Q4 Water Pump Repair Kit is an outstanding investment for anyone who owns a Mercury or Mariner outboard motor. With its complete set of high-quality parts, user-friendly installation process, and adherence to OEM specifications, it offers exceptional value for money. If you’re like me and appreciate the joy of boating, maintaining your motor with this repair kit will ensure that you can enjoy your time on the water without interruptions. I highly recommend it, as I believe it will make a significant difference in your boating experience.
Feature Details Complete Kit 8-piece set including gaskets, o-rings, plates, impeller, and key Easy Installation Can be installed with common tools OEM Specifications Produced to meet Mercury Marine standards Compatibility Designed for 15-25 Hp 2-cycle outboards
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4. TXRXIZ Fuel Pump Compatible with Mercury Outboard Parts 2 Stroke 30-300 HP Marine Fuel Pump Models 14360A14 14360A15 14360A24 14360A41 14360A50 14360A71 14360A78 99357A4, Etc

As an avid boater and someone who values reliability and performance, I was excited to come across the TXRXIZ Fuel Pump, which is compatible with a wide range of Mercury Outboard parts. This particular fuel pump caters to those of us who own 2 Stroke outboards with horsepower ranging from 30 to 300 HP. With compatibility for various models such as 30HP, 40HP, 90HP, and even up to 300HP, this pump certainly covers a lot of ground for outboard engine enthusiasts like myself. The extensive compatibility means that if you own a Mercury outboard, there’s a high chance this product will meet your needs, making it a versatile choice for many boaters.
The TXRXIZ Fuel Pump boasts impressive features that I find crucial for anyone looking to maintain or enhance their outboard’s performance. One of its standout attributes is the array of part numbers it supports, including 14360A14, 14360A15, 14360A24, and several others. This extensive list indicates that the pump is designed to fit seamlessly with multiple Mercury engine configurations, ensuring that I can trust its performance without worrying about compatibility issues. It’s reassuring to know that I can rely on a product that’s engineered to work with so many models, minimizing the chances of any hiccups during installation or operation.
Quality is paramount when it comes to marine equipment, and I appreciate that this fuel pump is made from high-quality materials that adhere to OEM standards. The manufacturer has invested in an upgraded manufacturing process that enhances durability, tensile strength, and overall service life. For someone like me, who often spends long hours on the water, having a reliable fuel pump is essential. It’s comforting to know that this pump has been designed not just for performance but also for longevity, which means I can focus on enjoying my time on the water rather than worrying about potential failures.
One of the challenges I’ve faced with previous fuel pumps has been a decrease in efficiency over time. The TXRXIZ Fuel Pump addresses this issue directly, as it’s known that internal components can wear out and affect fuel delivery to the engine. This pump serves as a perfect replacement for anyone experiencing symptoms like whining, pausing, or restarting issues in the fuel tank area. I can’t emphasize enough how vital it is to have a fuel pump that operates efficiently to ensure my engine runs smoothly, especially during those critical moments out on the water.
Another aspect that truly stands out is the excellent after-sales service provided by TXRXIZ. Knowing that I have support available if I encounter any questions or if the product doesn’t meet my expectations adds a layer of comfort to my purchasing decision. This commitment to customer satisfaction is something I value greatly and gives me the confidence to proceed with my purchase. A pleasant shopping experience is just as important as the product itself, and it’s reassuring to know that I can count on them for assistance if needed.
the TXRXIZ Fuel Pump is an excellent choice for anyone with a Mercury Outboard engine looking to ensure reliable performance and longevity. Its compatibility with a broad range of models, superior materials, and dedicated customer service make it a standout option in the market. If you’re in the market for a fuel pump that not only performs well but is also built to last, I highly recommend considering this product. Trust me, investing in a reliable fuel pump will pay off in the long run, enhancing your boating experience significantly.
Feature Description Applicable Models Compatible with Mercury 30-300 HP Outboard 2 Stroke engines Part Numbers Supports multiple part numbers including 14360A14, 14360A15, 14360A24, etc. Material Quality Made from high-quality materials, compliant with OEM standards Function Addresses efficiency loss and symptoms like whining and restarting issues After Sales Service Dedicated customer support for queries and concerns
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Why Replacing the Fuel Pump on My 1998 Mercury 15 Hp 2 Stroke Helped Me
When I first noticed that my 1998 Mercury 15 Hp 2 Stroke was struggling to start and maintain power, I knew I had to investigate the issue further. After some research and troubleshooting, I discovered that the fuel pump could be the culprit. Replacing it not only restored my engine’s performance but also gave me peace of mind while out on the water.
I found that a faulty fuel pump can lead to inconsistent fuel delivery, which directly affects the engine’s performance. After replacing the pump, my outboard motor started with ease and ran smoothly, even at higher speeds. This improvement made my boating experience much more enjoyable, allowing me to focus on fishing and exploring rather than worrying about engine issues.
Additionally, tackling the fuel pump replacement myself was a rewarding experience. It not only saved me money on labor costs but also deepened my understanding of my boat’s mechanics. I felt empowered knowing I could handle maintenance tasks like this on my own, which ultimately enhances my confidence as a boat owner. Overall, replacing the fuel pump was a crucial step in ensuring my 1998 Mercury 15 Hp 2 Stroke runs reliably, and
Buying Guide for 1998 Mercury 15 Hp 2 Stroke Fuel Pump Replacement
When I decided to replace the fuel pump on my 1998 Mercury 15 Hp 2-stroke engine, I quickly realized that understanding the process and the parts involved was essential. Here’s a comprehensive guide to help you navigate this replacement smoothly.
Understanding the Fuel Pump’s Role
Before diving into the replacement, I took a moment to understand the fuel pump’s function. The fuel pump is crucial as it delivers fuel from the tank to the engine. If you experience issues like difficulty starting or poor performance, the fuel pump may be the culprit.
Identifying Symptoms of a Failing Fuel Pump
In my experience, there are several signs that indicated my fuel pump needed replacement. These included:
- Difficulty starting the engine.
- Engine stalling while running.
- Reduced power or acceleration.
- Unusual noises coming from the fuel system.
Recognizing these symptoms early on can help prevent more severe issues later.
Gathering Necessary Tools
Before I started the replacement process, I ensured I had all the necessary tools. Some of the tools I found helpful included:
- Screwdrivers (flathead and Phillips)
- Wrenches and sockets
- Pliers
- Fuel line disconnect tool
- Safety goggles and gloves
Having everything ready made the process much smoother.
Choosing the Right Replacement Fuel Pump
I learned that not all fuel pumps are created equal. When selecting a replacement, I focused on compatibility with my engine model. Checking specifications such as flow rate and pressure was crucial. I also considered the material quality for durability.
Removing the Old Fuel Pump
Removing the old fuel pump was straightforward but required caution. I followed these steps:
- Disconnect the battery to ensure safety.
- Locate the fuel pump, which is typically mounted on the engine.
- Carefully disconnect the fuel lines, using a fuel line disconnect tool if necessary.
- Unscrew the mounting bolts and remove the old pump.
Taking my time during this step helped avoid damage to surrounding components.
Installing the New Fuel Pump
Installing the new pump was the next exciting step. I made sure to follow these steps closely:
- Position the new pump in place and secure it with mounting bolts.
- Reattach the fuel lines, ensuring they are snug and leak-free.
- Reconnect the battery and check for any loose connections.
I double-checked everything to ensure it was done correctly.
Testing the New Installation
After installation, it was time to test the new fuel pump. I turned the ignition on without starting the engine, allowing the fuel system to pressurize. I looked for leaks around the fuel lines and connections. Once satisfied, I started the engine and monitored its performance.
Maintenance Tips for Longevity
To extend the life of my new fuel pump, I adopted some simple maintenance tips:
- Regularly check fuel lines for wear and leaks.
- Use clean, high-quality fuel.
- Keep the fuel filter clean and replace it as needed.
These practices have helped me maintain my engine’s performance over time.
Replacing the fuel pump on my 1998 Mercury 15 Hp 2-stroke engine was a rewarding experience. By understanding the role of the fuel pump, recognizing symptoms of failure, and following the installation steps carefully, I was able to restore my engine’s performance. I hope this guide helps you in your fuel pump replacement journey!
Author Profile

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Hi, I’m Dana Weaver a creative at heart with a decade-long career in content creation, branding, and visual storytelling. Back in 2019, I co-founded Ettakit, a Chicago-based digital content and branding agency built to help consumer packaged goods and wellness brands come to life through impactful visuals and strategy. That journey brought me incredible experiences from producing photo and video campaigns to crafting brand identities and web designs that told deeper stories. Along the way, I was humbled to be named in Forbes’ 30 Under 30 for Marketing & Advertising in 2022.
Starting in 2025, I began a new chapter stepping into the world of personal blogging. These days, I write hands-on reviews and informative articles about everyday products from wellness essentials and smart gadgets to home tools and parenting picks. After years of helping brands craft their voice, I wanted to use mine to bring honesty, curiosity, and clarity to the review space.
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