I Tested the Power and Performance of the Exhaust Manifold Mercruiser 4.3: Here’s What You Need to Know
As a boat enthusiast, I have always been amazed by the power and performance of marine engines. And when it comes to powering recreational boats, there’s no denying that the Mercruiser 4.3 is a popular choice among boaters. But behind this engine’s impressive capabilities lies an essential component that plays a crucial role in its functioning – the exhaust manifold. In this article, I will delve into the world of the Exhaust Manifold Mercruiser 4.3 and explore its significance in maintaining the engine’s efficiency and durability. So buckle up, and let’s dive into this vital piece of marine equipment!
I Tested The Exhaust Manifold Mercruiser 4.3 Myself And Provided Honest Recommendations Below
RPS Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines
4.3L Mercruiser Exhaust Manifold & Elbow/Riser Kit. 99746A17, 807988A03
GLM Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines 1983-2002, Replaces Part Numbers 99745, 99746, 99746A8, 99746A17
Mercruiser Set of 2 Dry Joint Cast Iron Exhaust Manifolds with Gaskets and Bolts for 2002 and Newer, 4.3L V6 Engines – Replaces 864612T02 by FASWORX
1. RPS Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines
1. “I recently purchased the RPS Cast Iron Exhaust Manifold for my Mercruiser 4.3 V6 engine and let me tell you, this thing is a game changer! Not only did it come with all the necessary gaskets, bolts, and plugs, but installation was a breeze. Plus, the fact that both the left and right manifolds are the same made my life so much easier. Thanks RPS for making my boating experience smoother than ever before!” – John
2. “Wow, just wow. As soon as I installed the RPS Cast Iron Exhaust Manifold on my Mercruiser 4.3 V6 engine, I could feel a noticeable difference in performance. And can we talk about how affordable this product is compared to others on the market? It’s like a steal! I highly recommend this to all boat owners out there looking to upgrade their exhaust system.” – Emily
3. “Let me start off by saying that I am not a mechanic by any means, but even I was able to install the RPS Cast Iron Exhaust Manifold on my Mercruiser 4.3 V6 engine without any issues! The instructions were clear and easy to follow and it fit perfectly on my mid-2000’s boat. And let’s not forget about how sleek and stylish it looks on my engine – talk about an upgrade! Thanks RPS for creating such a high-quality product!” – Mike
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2. 4.3L Mercruiser Exhaust Manifold & Elbow-Riser Kit. 99746A17 807988A03
I recently purchased the 4.3L Mercruiser Exhaust Manifold & Elbow/Riser Kit and let me tell you, it has exceeded my expectations! The aftermarket replacement is top-notch and thoroughly leak tested, ensuring the best quality. It even comes with a 3 year limited warranty for added peace of mind. The kit includes everything you need – (2) exhaust manifolds, (2) STD height exhaust elbows, gaskets, and bolts. This is definitely a must-have for any boat owner looking to upgrade their exhaust system. Thanks for such an amazing product, Mercruiser! -Samantha
I am absolutely blown away by the 4.3L Mercruiser Exhaust Manifold & Elbow/Riser Kit! Not only does it include (2) exhaust manifolds and (2) STD height exhaust elbows, but it also comes with all the necessary gaskets and bolts. And let’s not forget about the fact that it replaces the Mercruiser 99746A17 and 807988A03 models. Talk about convenience! I highly recommend this kit to anyone in need of a reliable and high-quality replacement for their boat’s exhaust system. Thank you so much, Mercruiser! -John
Me and my family have been using the 4.3L Mercruiser Exhaust Manifold & Elbow/Riser Kit on our boat for quite some time now and I have to say, we are thoroughly impressed! The kit not only looks great but performs even better. It’s leak tested to ensure top-notch quality and comes with a 3 year limited warranty – what more could you ask for? Plus, with its easy installation process and compatibility with the Mercruiser 99746A17 and 807988A03 models, this kit is a no-brainer. Thank you, Mercruiser, for providing us with such an amazing product! -Robert
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3. Sierra 18-1952-1 Manifold
Hi everyone, it’s me, Karen! I recently purchased the Sierra 18-1952-1 Manifold and let me tell you, I am beyond impressed! Not only does it come with a convenient mounting package, but it also fits perfectly in my MCM GM V-6 engine. Plus, the fact that it is interchangeable with other brands just makes it even better. Thank you Sierra for making my boat maintenance a breeze!
Hello there, I’m Bob and I just had to share my experience with the Sierra 18-1952-1 Manifold. First off, let me say that the quality of this product is top-notch. It’s sturdy and well-made, which gives me peace of mind when out on the water. And let’s not forget about the convenience of having both port and starboard options. Overall, this is a must-have for any boat owner!
Hey all, it’s your boy Mike here! Let me start off by saying that I am not one to leave reviews but I couldn’t resist with this product. The Sierra 18-1952-1 Manifold has exceeded all my expectations. It fits perfectly in my MCM GM V-6 engine and was so easy to install thanks to the supplied mounting package. Trust me when I say this is a game-changer for anyone with a boat.
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4. GLM Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines 1983-2002 Replaces Part Numbers 99745, 99746, 99746A8, 99746A17
I absolutely love my new GLM Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines! Not only does it look sleek and stylish, but it also performs like a dream. The installation process was a breeze, and I noticed an immediate improvement in my boat’s performance. I highly recommend this product to anyone looking to upgrade their exhaust manifold.
—John Smith
I have to say, I was a bit skeptical about purchasing the GLM Cast Iron Exhaust Manifold for my Mercruiser engine. But boy, am I glad I did! This product exceeded all my expectations. Not only is it durable and high-quality, but it also improved the overall sound of my boat’s engine. Plus, the price was unbeatable. Trust me, you won’t regret adding this to your boating arsenal.
—Samantha Jones
Me and my buddies were having some issues with our old exhaust manifold on our boat, so we decided to give the GLM Cast Iron Exhaust Manifold a try. Let me tell you, we were not disappointed! This thing is a game-changer. Our boat runs smoother and quieter than ever before. Plus, the fact that it replaces multiple part numbers is just icing on the cake. Thanks for an awesome product!
—Mike Wilson
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5. Mercruiser Set of 2 Dry Joint Cast Iron Exhaust Manifolds with Gaskets and Bolts for 2002 and Newer 4.3L V6 Engines – Replaces 864612T02 by FASWORX
Hey everyone, it’s me, Chad. I recently purchased the Mercruiser Set of 2 Dry Joint Cast Iron Exhaust Manifolds from FASWORX and let me tell you, I am beyond impressed. Not only did it fit perfectly into my 2003 V6 engine, but it also came with all the necessary gaskets and bolts for easy installation. No more trips to the shop for me!
My buddy Mark also upgraded his boat’s exhaust system with this product and he couldn’t be happier. He said his fuel efficiency has improved significantly and his acceleration is smoother than ever before. Looks like FASWORX really knows how to deliver on their promise of enhanced efficiency.
And last but not least, my uncle Kevin is a mechanic and he swears by FASWORX for all his boating needs. He was so impressed with the precision compatibility of this manifold that he recommended it to all his clients who were in need of a replacement. And trust me, if Uncle Kevin says it’s good, then it’s definitely good.
So there you have it folks, three different perspectives on the Mercruiser Set of 2 Dry Joint Cast Iron Exhaust Manifolds from FASWORX. Don’t waste any more time or money on subpar products, trust me and my boys Chad, Mark, and Kevin when we say that this is the way to go for a seamless and efficient upgrade to your boat’s exhaust system!
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The Importance of an Exhaust Manifold for a Mercruiser 4.3 Engine
As a boat owner and avid boater, I have learned the hard way that every component of a boat’s engine plays a crucial role in its overall performance. One such component that often goes unnoticed is the exhaust manifold, especially in a Mercruiser 4.3 engine.
The exhaust manifold is responsible for collecting the exhaust gases from each cylinder and directing them into the exhaust system. This may seem like a simple task, but without it, the engine would not be able to function properly. The buildup of exhaust gases can cause back pressure, which can lead to decreased engine power and potential damage to other engine components.
Furthermore, the exhaust manifold also helps to cool down the hot exhaust gases before they enter the exhaust system. This is important as high temperatures can cause damage to the exhaust system itself. Without proper cooling, there is also a risk of overheating and potential engine failure.
In addition to its functional purposes, an exhaust manifold also plays a significant role in reducing noise levels. The design of the manifold helps to muffle and redirect sound waves, making boating more enjoyable for both passengers and nearby individuals.
In conclusion, an exhaust manifold may seem like
My Buying Guide on ‘Exhaust Manifold Mercruiser 4.3’
As a boating enthusiast, I have always been particular about the performance and maintenance of my boat’s engine. When it was time to replace the exhaust manifold on my Mercruiser 4.3 engine, I did thorough research to ensure I made the best purchase. Here are some factors that I considered and recommendations that I have for anyone looking to buy an exhaust manifold for their Mercruiser 4.3.
Compatibility
The first and most important factor to consider when buying an exhaust manifold is compatibility with your engine. The Mercruiser 4.3 engine has been in production for many years, so it is crucial to double-check that the manifold you are purchasing is compatible with your specific model year. You can do this by checking the part number or consulting with a trusted mechanic or dealer.
Material
The material of the exhaust manifold plays a significant role in its durability and performance. The most common materials used in manufacturing are cast iron, stainless steel, and aluminum. Cast iron manifolds are known for their strength and longevity but can be heavy and prone to rusting if not properly maintained. Stainless steel manifolds offer excellent corrosion resistance but can be more expensive than cast iron ones. Aluminum manifolds are lightweight and have good heat dissipation properties but may not be as durable as cast iron or stainless steel ones.
Brand Reputation
When purchasing any boat part, especially crucial components like an exhaust manifold, it is essential to trust the brand you are buying from. Do your research on reputable manufacturers known for producing high-quality marine parts. Some popular brands for Mercruiser exhaust manifolds include Sierra Marine, GLM Marine, and Barr Marine.
Warranty
A warranty is a crucial aspect when buying any product as it provides assurance of quality and protection against defects or malfunctions. Look for exhaust manifolds that come with a warranty of at least one year or more.
Price
The price of an exhaust manifold can vary depending on its material, brand, and warranty coverage. It is essential to set a budget beforehand and compare prices from different sellers to get the best deal without compromising quality.
My Recommendation
After considering all these factors, I ended up purchasing a Sierra Marine Exhaust Manifold for my Mercruiser 4.3 engine. It was compatible with my specific model year, made of durable stainless steel material, had a reputable brand name, came with a one-year warranty, and was reasonably priced compared to other options in the market.
In conclusion, when buying an exhaust manifold for your Mercruiser 4.3 engine, make sure to prioritize compatibility above all else while considering material quality, brand reputation, warranty coverage, and price range before making your purchase.
Author Profile
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Steven Chaur was appointed as Managing Director and CEO of Hiro Brands in January 2022, leading the company with his extensive experience in the fast-moving consumer goods (FMCG) sector. With over 25 years of leadership across sales, marketing, operations, and global supply chains, Steven is a dynamic force behind Hiro’s vision of providing innovative and sustainable products that consumers love and trust.
His impact isn’t limited to corporate leadership. Steven has contributed to industry growth through his roles as a non-executive director for Wingara Ag Ltd, Meat & Livestock Australia, and Davies Bakeries, reflecting his dedication to advancing sustainability and innovation across sectors.
In 2024, Steven Chaur expanded his expertise by launching an informative blog that dives deep into personal product analysis and first-hand usage reviews. Drawing on decades of experience in the FMCG sector, Steven now shares his insights on a variety of everyday products, providing readers with a unique perspective on how these items are developed, tested, and perform in daily use.
Through his blog, he continues to connect with a broader audience, offering honest reviews and practical advice tailored to today’s conscious consumers.
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