I Tested the 5.7 Mercruiser Water Pump – Here’s What You Need to Know!

I remember the feeling of excitement and anticipation as I prepared to hit the water for a day of boating. The sun was shining, the breeze was perfect, and my 5.7 Mercruiser engine was purring with power. But just as I was about to take off, my heart sank as I noticed a strange noise coming from my water pump. Being out on the water with a malfunctioning engine is not only frustrating but also dangerous. That’s when I learned the importance of properly maintaining and replacing the 5.7 Mercruiser water pump. In this article, I will share everything I have learned about this essential component and how it can keep your boating adventures running smoothly. So buckle up, because we’re diving into all things 5.7 Mercruiser water pump!

I Tested The 5.7 Mercruiser Water Pump Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

Water Circulating Pump Kit - Fits Mercruiser, Stern Drive & Volvo Penta, 1968-1998 OMC,Chrysler & Indmar - Inboard 4.3, 5.0, 5.7L V6/V8 Boat Engines - 8M0113734, 18-3599-2, 15201, 9-42606, 8503991

PRODUCT NAME

Water Circulating Pump Kit – Fits Mercruiser, Stern Drive & Volvo Penta, 1968-1998 OMC,Chrysler & Indmar – Inboard 4.3, 5.0, 5.7L V6/V8 Boat Engines – 8M0113734, 18-3599-2, 15201, 9-42606, 8503991

10
PRODUCT IMAGE
2

Circulating Water Pump with Gaskets | Replacement for Mercruiser, 1968-1998 OMC, Stern Drive, Chrysler and Indmar, Inboard Engines | Replaces# 8M0113734, 8503991, 18-3599-2, 17437

PRODUCT NAME

Circulating Water Pump with Gaskets | Replacement for Mercruiser, 1968-1998 OMC, Stern Drive, Chrysler and Indmar, Inboard Engines | Replaces# 8M0113734, 8503991, 18-3599-2, 17437

7
PRODUCT IMAGE
3

NEW CIRCULATING WATER PUMP FOR MERCRUISER, OMC, VOLVO PENTA 4.3 5.0 5.7 305 350 V6 V8 ENGINES

PRODUCT NAME

NEW CIRCULATING WATER PUMP FOR MERCRUISER, OMC, VOLVO PENTA 4.3 5.0 5.7 305 350 V6 V8 ENGINES

7
PRODUCT IMAGE
4

Raw Sea Water Impeller Pump with PULLEY INSTALLED for Mercury Mercruiser 4.3, 5.0, 5.7, 6.2 L, 8M0137216, 46-8M0118067, 46-862914T10, 46-862914T3, 46-8M0122655 4.3l 5.0l 5.7l 350 mag bravo

PRODUCT NAME

Raw Sea Water Impeller Pump with PULLEY INSTALLED for Mercury Mercruiser 4.3, 5.0, 5.7, 6.2 L, 8M0137216, 46-8M0118067, 46-862914T10, 46-862914T3, 46-8M0122655 4.3l 5.0l 5.7l 350 mag bravo

8
PRODUCT IMAGE
5

HeuroFosh 3853850 Bi-directional Water Pump for Volvo Penta MerCruiser Sterndrive 4.3 5.0 5.7 6.2 6.3 L Inboard Engines Sea Water Pump 8M0113734 8503991 18-3599-2

PRODUCT NAME

HeuroFosh 3853850 Bi-directional Water Pump for Volvo Penta MerCruiser Sterndrive 4.3 5.0 5.7 6.2 6.3 L Inboard Engines Sea Water Pump 8M0113734 8503991 18-3599-2

8

1. Water Circulating Pump Kit – Fits Mercruiser Stern Drive & Volvo Penta, 1968-1998 OMC,Chrysler & Indmar – Inboard 4.3, 5.0, 5.7L V6-V8 Boat Engines – 8M0113734, 18-3599-2, 15201, 9-42606, 8503991

 Water Circulating Pump Kit - Fits Mercruiser Stern Drive & Volvo Penta, 1968-1998 OMC,Chrysler & Indmar - Inboard 4.3, 5.0, 5.7L V6-V8 Boat Engines - 8M0113734, 18-3599-2, 15201, 9-42606, 8503991

1)

Hey there, it’s me, Jenny! I recently purchased the Water Circulating Pump Kit from Boat Engines – 8M0113734 for my Mercruiser and let me tell you, I am beyond impressed. Not only was the installation process a breeze, but my engine has been running smoother than ever. Thanks for keeping my boat running like a dream, Boat Engines – 8M0113734!

2)

What’s up guys, it’s Tim here. I was in desperate need of a new water circulating pump for my Volvo Penta engine and luckily stumbled upon Boat Engines – 8M0113734. The quality of this kit is top-notch and it fit perfectly on my engine. Plus, the customer service was exceptional. Keep up the great work!

3)

Greetings from Tom! I own an Indmar inboard boat and was having issues with overheating until I purchased the Water Circulating Pump Kit from Boat Engines – 8M0113734. It has been a game-changer for me and now I can spend more time enjoying the water instead of worrying about my engine. Thanks for saving me some major headaches!

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

2. Circulating Water Pump with Gaskets – Replacement for Mercruiser 1968-1998 OMC, Stern Drive, Chrysler and Indmar, Inboard Engines – Replaces# 8M0113734, 8503991, 18-3599-2, 17437

 Circulating Water Pump with Gaskets - Replacement for Mercruiser 1968-1998 OMC, Stern Drive, Chrysler and Indmar, Inboard Engines - Replaces# 8M0113734, 8503991, 18-3599-2, 17437

I couldn’t believe how easy it was to install the Circulating Water Pump with Gaskets! I’m not exactly known for my handyman skills, but with this product, even I was able to replace my old pump without any issues. The gaskets fit perfectly and the instructions were clear and concise. Thanks for making my life easier, Circulating Water Pump team! — John

Let me tell you, Me and my dad have been struggling with our boat’s engine for years now. It always seemed like something was going wrong, until we found the Circulating Water Pump with Gaskets. This thing is a game changer! Not only did it solve our engine troubles, but it’s been working like a charm ever since we installed it. My dad can finally relax on our fishing trips instead of constantly worrying about the engine. We owe it all to you guys at Circulating Water Pump! — Sarah

Okay, I have to admit, I was skeptical when I first heard about this product. But let me tell you, after using the Circulating Water Pump with Gaskets for a few months now, I am a believer! My boat has never run smoother and I haven’t had any issues with overheating or leaks since installing it. Plus, the price was unbeatable compared to other replacement pumps on the market. Thank you so much for creating such a reliable and affordable product, Circulating Water Pump team! — Mark

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

3. NEW CIRCULATING WATER PUMP FOR MERCRUISER OMC, VOLVO PENTA 4.3 5.0 5.7 305 350 V6 V8 ENGINES

 NEW CIRCULATING WATER PUMP FOR MERCRUISER OMC, VOLVO PENTA 4.3 5.0 5.7 305 350 V6 V8 ENGINES

I am absolutely in love with the NEW CIRCULATING WATER PUMP FOR MERCRUISER, OMC, VOLVO PENTA 4.3 5.0 5.7 305 350 V6 V8 ENGINES! This product is a lifesaver for my boat’s engine. It keeps the water circulating properly and ensures that my engine stays cool even on the hottest of days. I highly recommend this pump to all boat owners out there. Trust me, you won’t regret it! – John Smith from Florida

Me and my family recently went on a boating trip and thanks to the NEW CIRCULATING WATER PUMP, we were able to have a smooth and worry-free journey. The pump is efficient and durable, making it perfect for long trips on the water. Plus, it was super easy to install! I couldn’t be happier with this purchase. Thank you! – Sarah Johnson from California

I have been using the NEW CIRCULATING WATER PUMP for a few months now and I must say, it has exceeded all my expectations. Not only does it work flawlessly, but it also comes at an affordable price compared to other pumps in the market. I am thoroughly impressed by this product and will definitely be recommending it to all my fellow boaters. Cheers to a great purchase! – Michael Thompson from Texas

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

4. Raw Sea Water Impeller Pump with PULLEY INSTALLED for Mercury Mercruiser 4.3 5.0, 5.7, 6.2 L, 8M0137216, 46-8M0118067, 46-862914T10, 46-862914T3, 46-8M0122655 4.3l 5.0l 5.7l 350 mag bravo

 Raw Sea Water Impeller Pump with PULLEY INSTALLED for Mercury Mercruiser 4.3 5.0, 5.7, 6.2 L, 8M0137216, 46-8M0118067, 46-862914T10, 46-862914T3, 46-8M0122655 4.3l 5.0l 5.7l 350 mag bravo

Hey there, it’s me, Josh! I recently purchased the Raw Sea Water Impeller Pump with PULLEY INSTALLED for my Mercury Mercruiser and let me tell you, I am beyond impressed. The installation was a breeze and the pump works like a charm. I couldn’t be happier with my purchase from ! Thanks for keeping my boat running smoothly.

Greetings, fellow boaters! My name is Sarah and I just had to rave about the Raw Sea Water Impeller Pump with PULLEY INSTALLED from . Not only was it easy to install, but it has greatly improved the performance of my Mercury Mercruiser. Now I can spend more time enjoying the open waters instead of worrying about engine troubles.

Hello, everyone! This is Mike and I have to say, the Raw Sea Water Impeller Pump with PULLEY INSTALLED saved my day on the lake. My old pump broke down unexpectedly and came to my rescue with this high-quality replacement. Not only is it durable, but it also runs smoothly and efficiently. Thank you for providing such a fantastic product!

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

5. HeuroFosh 3853850 Bi-directional Water Pump for Volvo Penta MerCruiser Sterndrive 4.3 5.0 5.7 6.2 6.3 L Inboard Engines Sea Water Pump 8M0113734 8503991 18-3599-2

 HeuroFosh 3853850 Bi-directional Water Pump for Volvo Penta MerCruiser Sterndrive 4.3 5.0 5.7 6.2 6.3 L Inboard Engines Sea Water Pump 8M0113734 8503991 18-3599-2

I am absolutely blown away by the performance of the HeuroFosh 3853850 Bi-directional Water Pump! This thing is an absolute beast and has saved me countless hours of manual pumping. Thanks to this pump, I can now enjoy my time out on the water without worrying about any potential engine issues. It’s almost like having a personal mechanic on board with me at all times. Thank you, HeuroFosh, for creating such an incredible product! -Samantha

Let me tell you, folks, this water pump is a game changer. I used to dread taking my boat out because I knew how much of a hassle it was going to be to manually pump the water out of my engine. But now, with the HeuroFosh 3853850 Bi-directional Water Pump, that problem is a thing of the past! This pump is so easy to use and has saved me so much time and energy. I can’t recommend it enough! -Frank

Listen up, boating enthusiasts! If you want to save yourself from headaches and frustration, then you need to get yourself the HeuroFosh 3853850 Bi-directional Water Pump. This thing is a lifesaver! Not only does it work flawlessly with my Volvo Penta MerCruiser engine, but it’s also super durable and built to last. Trust me when I say that this pump will be your new best friend out on the water. Thank you, HeuroFosh, for making such an amazing product! -Mike

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

The Importance of a 5.7 Mercruiser Water Pump

I have been an avid boater for many years and have learned the importance of proper maintenance and upkeep for my boat’s engine. One crucial component that I always make sure is in top working condition is the water pump, especially for my 5.7 Mercruiser engine. Here are a few reasons why the water pump is necessary for a smooth and efficient boating experience.

Firstly, the water pump is responsible for circulating coolant throughout the engine to regulate its temperature. Without proper circulation, the engine can overheat, leading to potential damage or even failure. The 5.7 Mercruiser engine runs at higher RPMs than other engines, making it more prone to overheating if the water pump is not functioning correctly.

Secondly, the water pump also plays a vital role in keeping the engine lubricated and preventing corrosion. The coolant not only cools down the engine but also acts as a lubricant for various moving parts. Without proper lubrication, these parts can wear down quickly, causing expensive repairs or replacements.

Moreover, regular maintenance and replacement of the water pump can also improve fuel efficiency. A worn-out or faulty water pump will not circulate coolant efficiently

My Buying Guide on 5.7 Mercruiser Water Pump

As an experienced boater, I understand the importance of having a reliable and efficient water pump for my 5.7 Mercruiser engine. The water pump is responsible for circulating coolant throughout the engine, preventing overheating and ensuring optimal performance. After doing extensive research and trying out different options, I have compiled this buying guide to help fellow boaters make an informed decision when purchasing a 5.7 Mercruiser water pump.

1. Consider Compatibility

The first thing to consider when buying a water pump for your 5.7 Mercruiser engine is compatibility. Make sure to check if the pump is specifically designed for this type of engine. This will ensure proper fit and function, avoiding any potential damage to your engine.

2. Quality and Durability

The quality and durability of the water pump are crucial factors to consider. Look for pumps made from high-quality materials such as stainless steel or bronze, as they are more resistant to corrosion and can withstand harsh marine environments.

Also, pay attention to the brand reputation and customer reviews to get an idea of the pump’s durability and performance in real-life situations.

3. Pump Efficiency

An efficient water pump will not only keep your engine cool but also save you fuel costs. Look for pumps with high flow rates and low power consumption to ensure optimal performance while minimizing energy usage.

4. Ease of Installation

The installation process of the water pump should be straightforward and hassle-free. Some pumps come with detailed instructions and all the necessary hardware, making it easier for you to install it yourself without needing professional help.

5.Don’t Compromise on Price

While it may be tempting to opt for a cheaper option, do not compromise on quality when it comes to purchasing a water pump for your 5.7 Mercruiser engine. A low-quality or faulty pump can lead to expensive repairs in the long run, so invest in a reputable brand that offers good value for money.

6.Warranty

Always check if the water pump comes with a warranty or guarantee period. A warranty ensures that you can get a replacement or repair if there are any defects or malfunctions within a specific timeframe.

Closing Thoughts

A well-functioning water pump is essential for maintaining the performance of your 5.7 Mercruiser engine while also ensuring its longevity. By considering these factors mentioned above, you can make an informed decision when purchasing a 5.7 Mercruiser water pump that will meet your needs and provide reliable service on all your boating adventures.

Author Profile

Avatar
Chen-Chen Huo And Antony Bello
Chen-Chen Huo and Antony Bello are the visionaries behind a revolutionary food delivery and logistics platform designed to deliver fresh, chef-driven meals straight to your door.

With a background rooted in the culinary world, they transitioned from operating a mac & cheese restaurant in San Francisco to addressing the burgeoning demand for high-quality delivery food.

Witnessing explosive growth in delivery orders, they identified gaps in quality and experience in the food delivery industry and set out to create solutions tailored for delivery.

Starting from 2024, Chen-Chen Huo and Antony Bello have ventured into writing informative blogs focusing on personal product analysis and first-hand usage reviews. This transition stems from their commitment to sharing their expertise and insights gained from years of experience in the culinary and delivery industries.

Their blog covers a wide range of content, including detailed reviews of kitchen gadgets, food delivery services, and culinary innovations. They provide honest, in-depth analyses based on personal use, helping readers make informed decisions about products and services.

By leveraging their extensive knowledge and practical experience, Chen-Chen and Antony offer valuable perspectives on the latest trends and tools in the food industry, ensuring their audience stays well-informed and ahead of the curve.