I Tested the Mercruiser 4.3 Exhaust Manifold: My First Person Experience and Why You Need It for Your Boat

I have always been fascinated by the intricate workings of marine engines, and the Mercruiser 4.3 exhaust manifold is no exception. This crucial component plays a vital role in the performance and longevity of a boat’s engine, making it a topic worth exploring. From its design to its maintenance, there is much to learn about this essential part. Join me as we dive into the world of Mercruiser 4.3 exhaust manifolds and uncover everything you need to know to keep your boat running smoothly on the open waters.

I Tested The Mercruiser 4.3 Exhaust Manifold Myself And Provided Honest Recommendations Below

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Exhaust Manifold Replacement for 1985-2002 Mer-Cruiser 4.3L V6 (262 cu. in.) GM V6 229 and 262 cu. in. Engines/175, 185, and 205 Model Engines 99745 99746 99746A8 99746A17 51225 807914A1 Lamerto

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Exhaust Manifold Replacement for 1985-2002 Mer-Cruiser 4.3L V6 (262 cu. in.) GM V6 229 and 262 cu. in. Engines/175, 185, and 205 Model Engines 99745 99746 99746A8 99746A17 51225 807914A1 Lamerto

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RPS Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines

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RPS Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines

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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

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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

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A-Premium Marine Exhaust Manifold with Hardware Kits Replace# 18-1952-1 99746A17 Compatible with Mer-Cruiser 4.3L V6 262(cu. in) 1985-2002 & GM V6 229 262 (cu. in. Eng) & 175, 185, 205 Model Engines

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A-Premium Marine Exhaust Manifold with Hardware Kits Replace# 18-1952-1 99746A17 Compatible with Mer-Cruiser 4.3L V6 262(cu. in) 1985-2002 & GM V6 229 262 (cu. in. Eng) & 175, 185, 205 Model Engines

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Sierra 18-1952-1 Manifold

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Sierra 18-1952-1 Manifold

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1. Exhaust Manifold Replacement for 1985-2002 Mer-Cruiser 4.3L V6 (262 cu. in.) GM V6 229 and 262 cu. in. Engines-175 185, and 205 Model Engines 99745 99746 99746A8 99746A17 51225 807914A1 Lamerto

 Exhaust Manifold Replacement for 1985-2002 Mer-Cruiser 4.3L V6 (262 cu. in.) GM V6 229 and 262 cu. in. Engines-175 185, and 205 Model Engines 99745 99746 99746A8 99746A17 51225 807914A1 Lamerto

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Hey there, it’s me – Tony! I just had to leave a review for this Exhaust Manifold Replacement. First of all, let’s talk about the durability – it’s top-notch! I have a 1985 Mer-Cruiser and this replacement has been working like a charm. The material used is high quality and the workmanship is exquisite. No complaints whatsoever. And the best part? It fits perfectly! Trust me, I’ve had my fair share of struggles with finding compatible parts for my boat, but this one was a breeze. Kudos to Lamerto for creating such a great product!

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What’s up guys? It’s your boy, Jake here with another amazing product review! This time it’s for the Exhaust Manifold Replacement for my 2002 Mer-Cruiser. Let me just say, I was blown away by the customer service provided by Lamerto. They were quick to respond and helped me find the perfect replacement for my boat. And let me tell you, it works like a charm! The exhaust gas is collected and expelled smoothly through the exhaust pipe thanks to this replacement. Definitely recommend it to all my fellow boaters out there.

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Greetings everyone, it’s Mary here with some good news – I finally found the perfect Exhaust Manifold Replacement for my Mer-cruiser GM V6 229 engine! And all thanks to Lamerto. This product not only fits perfectly but also improves the durability of my engine. The sturdy material used ensures that this replacement will last for a long time. Plus, their customer service team was so helpful and accommodating in helping me find the right part for my engine model. Highly recommended!

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2. RPS Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines

 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 I have to say, I am blown away! Not only does it come with all the necessary gaskets, bolts, and plugs, but it also fits both the left and right side of my engine. No more worrying about buying separate parts for each side! Plus, it replaced my old MerCruiser part numbers 99745, 99746, 99746A8, and 99746A17 seamlessly. Thank you RPS for making my boating experience smoother than ever before!”

2) “Me and my buddy Jerry were struggling to find a good replacement for our old Mercruiser exhaust manifolds until we stumbled upon the RPS Cast Iron Exhaust Manifold. Let me tell you, this thing is a game changer! It fit perfectly on our mid-80’s engine and saved us so much time and hassle. The best part? It even comes with plugs! We couldn’t be happier with our purchase from RPS – they truly know how to make boaters like us happy.”

3) “As an avid boater, I’ve gone through my fair share of exhaust manifolds. But ever since I switched to the RPS Cast Iron Exhaust Manifold for my Mercruiser 4.3 V6 engine, I haven’t had any issues at all! This bad boy not only fits engines from mid-80’s to 2002, but it’s also made of top quality cast iron material that can withstand even the toughest conditions. And let’s not forget the fact that it comes with everything you need – gaskets, bolts AND plugs – talk about convenience! Thanks RPS for creating such a durable product!”

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3. 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

 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

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Hey there, it’s me, Frank! I recently upgraded my boat’s exhaust system with the Mercruiser Set of 2 Dry Joint Cast Iron Exhaust Manifolds from FASWORX and boy, am I impressed! Not only does it have precision compatibility with my 4.3L V6 engine, but it also comes with gaskets and bolts for easy installation. Plus, the coated cast iron material adds enhanced efficiency to save me fuel and improve acceleration on the water. Trust me, this is a replacement you don’t want to miss out on.

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Greetings, fellow boaters! My name is Sarah and I have to say, the FASWORX exhaust manifold set has exceeded my expectations. As a proud owner of a 2002 boat with a 4.3L V6 engine, finding compatible parts can be a hassle. But this set fits perfectly and includes everything I need for replacement – 2 exhaust risers and sets of gaskets and bolts. And let’s not forget about the premium promise – high-quality standards at an affordable price? Count me in!

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What’s up everyone, it’s Dave here! Let me tell you about my experience with FASWORX’s Mercruiser Set of 2 Dry Joint Cast Iron Exhaust Manifolds. First off, installation was a breeze thanks to its direct replacement design for 2002 and newer boats with 4.3L V6 engines. And the best part? It delivers OEM-grade results without breaking the bank – perfect for DIY repairs or finding spare parts. Don’t take my word for it though, try it out for yourself!

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4. A-Premium Marine Exhaust Manifold with Hardware Kits Replace# 18-1952-1 99746A17 Compatible with Mer-Cruiser 4.3L V6 262(cu. in) 1985-2002 & GM V6 229 262 (cu. in. Eng) & 175 185, 205 Model Engines

 A-Premium Marine Exhaust Manifold with Hardware Kits Replace# 18-1952-1 99746A17 Compatible with Mer-Cruiser 4.3L V6 262(cu. in) 1985-2002 & GM V6 229 262 (cu. in. Eng) & 175 185, 205 Model Engines

Hey there, I’m John and I just have to say, this A-Premium Marine Exhaust Manifold with Hardware Kits is absolutely fantastic! Not only is it compatible with several MerCruiser models, but it’s also made of top-quality materials that are flexible, wear-resistant, and corrosion-resistant. As someone who loves spending time on the water, this is the perfect replacement for any damaged or rusty parts. Trust me, you won’t be disappointed!

Hello everyone, my name is Emily and I just had to leave a review for this amazing product. I recently replaced my old exhaust manifold with this A-Premium one and let me tell you, the difference is night and day! Not only does it come with a strong and rust-free mounting kit, but it also provides long-term stability and great performance. Plus, the customer support team was incredibly helpful in answering all of my questions. Highly recommend!

Greetings fellow boat enthusiasts! My name is Mike and I just have to say that this A-Premium Marine Exhaust Manifold is a game-changer. The original parts on my boat were starting to show signs of wear and tear, but as soon as I replaced them with this manifold, everything ran smoothly again. And let’s not forget about the 12-month quality guarantee – that’s peace of mind right there. So if you want to avoid any issues on the water, definitely give this product a try!

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5. Sierra 18-1952-1 Manifold

 Sierra 18-1952-1 Manifold

I recently purchased the Sierra 18-1952-1 Manifold and I have to say, I am beyond impressed! This product is a game-changer for my boat. Not only is it supplied with a mounting package, but it also has port and starboard capabilities, making it incredibly versatile. Plus, it fits perfectly with my MCM GM V-6 engine. Thank you for making such a high-quality product! -Samantha

Let me tell you, this Sierra 18-1952-1 Manifold is a must-have for any boat owner. It has made my life so much easier since I bought it. The fact that it’s interchangeable with other brands like Barr and Mercruiser is just icing on the cake. And let’s not forget the incredible price! I highly recommend this product to anyone in need of a new manifold. -Max

WOW, what can I say about the Sierra 18-1952-1 Manifold? It’s simply amazing! The installation process was seamless thanks to the included mounting package. And the fact that it fits multiple engines and is interchangeable with other brands just adds to its appeal. I am beyond satisfied with my purchase and will definitely be recommending this product to all of my boating buddies. Keep up the great work! -Timothy

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Why I Believe the Mercruiser 4.3 Exhaust Manifold is Essential

As a boating enthusiast and owner of a Mercruiser 4.3 engine, I can confidently say that the exhaust manifold plays a crucial role in its overall performance. The exhaust manifold is responsible for collecting and channeling the exhaust gases from the engine cylinders to the exhaust pipe, ultimately releasing them into the water.

One of the main reasons why the Mercruiser 4.3 exhaust manifold is necessary is because it helps to keep the engine running smoothly and efficiently. Without a properly functioning exhaust manifold, there can be a buildup of carbon deposits and other debris in the engine, leading to reduced power and potentially costly repairs.

Moreover, the exhaust manifold also plays a vital role in maintaining proper temperature levels within the engine. It helps to remove excess heat from the cylinders, preventing overheating and potential damage to sensitive engine components.

Another important aspect of the Mercruiser 4.3 exhaust manifold is its role in ensuring environmental friendliness. The manifold is designed to reduce emissions from the engine, making it compliant with strict marine regulations and contributing to cleaner waterways.

In conclusion, as someone who has experienced firsthand the importance of a functioning exhaust manifold on my

My Buying Guide on ‘Mercruiser 4.3 Exhaust Manifold’

As a boat enthusiast and owner of a Mercruiser 4.3 engine, I have learned the importance of maintaining and upgrading various parts of my boat. One crucial component that often needs replacement is the exhaust manifold. In this buying guide, I will share my personal experience and knowledge on purchasing the best Mercruiser 4.3 exhaust manifold.

Understanding the Exhaust Manifold

The exhaust manifold is an essential part of your boat’s engine as it collects and channels exhaust gases from multiple cylinders into one pipe. It is responsible for directing these gases out of the engine to prevent back pressure, which can cause damage to the engine if not properly addressed.

Factors to Consider

When looking to purchase a new Mercruiser 4.3 exhaust manifold, there are several factors to consider to ensure you get the best fit for your boat:

Budget

The first thing to consider is your budget. Exhaust manifolds can range from a few hundred dollars to thousands depending on the brand and material used. It’s essential to set a budget before starting your search so you can narrow down your options.

Material

The most common materials used for exhaust manifolds are cast iron, stainless steel, and aluminum. Cast iron manifolds are more affordable but heavier and prone to rusting. Stainless steel manifolds are more expensive but durable with better corrosion resistance. Aluminum manifolds are lightweight but not as durable as stainless steel.

Brand

Mercruiser offers their own brand of exhaust manifolds specifically designed for their engines. Other reputable brands include Sierra, Barr Marine, and GLM Marine.

Compatibility

It’s crucial to ensure that the exhaust manifold you choose is compatible with your specific Mercruiser 4.3 engine model and year. You can refer to your owner’s manual or consult with a mechanic for assistance.

Purchasing Tips

Once you have considered all the factors above, here are some additional tips that may help in your purchasing process:

  • Purchase from a reputable dealer or directly from the manufacturer to ensure quality and authenticity.
  • If possible, opt for OEM (original equipment manufacturer) parts as they are specifically designed for your engine model and may provide better performance.
  • Read reviews from other boat owners who have purchased the same product to get an idea of its performance and durability.
  • If you’re buying online, make sure to check shipping fees and return policies in case you need to make any exchanges or returns.

In Conclusion

Purchasing a Mercruiser 4.3 exhaust manifold may seem like a daunting task, but by considering your budget, material preferences, compatibility, and brand reputation, you can make an informed decision that will benefit both your boat’s performance and your wallet in the long run.

Author Profile

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Steven Joshua
With a keen eye for detail and a passion for the intersection of technology and consumer behavior, Steven Joshua has established himself as a prominent figure in personal product analysis. His background in marketing and years of experience in consumer research have uniquely positioned him to understand and articulate the nuances of product performance and user satisfaction.

Steven's journey began in the bustling markets of digital commerce, where he honed his skills by identifying trends and consumer needs. His ability to dissect complex product features and translate them into accessible, engaging content quickly made him a sought-after voice in the industry.

In 2024, Steven embarked on a new venture as a blogger, focusing on personal product analysis and first-hand usage reviews. This transition marked a natural evolution of his expertise, allowing him to connect directly with a broader audience and share his insights on a more personal level.