I Installed the Best Exhaust Manifold for My 4.3 Mercruiser – Here’s Why You Should Too! (BoatMechanics)

As a boat owner, one of the most important things to consider is the performance and maintenance of your vessel’s engine. And when it comes to powering your boat, there’s nothing quite like a 4.3 Mercruiser engine. But even the most powerful engines need proper maintenance to keep them running smoothly. That’s where the exhaust manifold comes in – an essential component that plays a crucial role in your engine’s performance. In this article, I’ll be diving into everything you need to know about the exhaust manifold for your 4.3 Mercruiser engine, from its function to common issues and maintenance tips. So sit back, relax, and let’s explore the world of Exhaust Manifold 4.3 Mercruiser together.

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

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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

PRODUCT NAME

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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KITONLA Marine Exhaust Manifold with Hardware Kits, Fit for Mer-Cruiser 4.3L V6 262(cu. in) 1985-2002 & GM V6 229 262 (cu. in. Eng) & 175, 185, 205 Model Engines, Replace# 18-1952-1 51220 99746A17

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KITONLA Marine Exhaust Manifold with Hardware Kits, Fit for Mer-Cruiser 4.3L V6 262(cu. in) 1985-2002 & GM V6 229 262 (cu. in. Eng) & 175, 185, 205 Model Engines, Replace# 18-1952-1 51220 99746A17

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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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4.3L Mercruiser Exhaust Manifold & Elbow/Riser Kit. 99746A17, 807988A03

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4.3L Mercruiser Exhaust Manifold & Elbow/Riser Kit. 99746A17, 807988A03

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1. 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

As someone who loves to spend my weekends out on the water, I can confidently say that the A-Premium Marine Exhaust Manifold is a game changer. It’s compatible with MerCruiser 4.3L V6 engines from 1985-2002, as well as GM V6 engines and other specific models. But what really stands out to me is the quality copolymer material it’s made of, which is both flexible and corrosion-resistant. No more worrying about rust or deformation! Plus, with a one-year unlimited-mileage guarantee, I can hit the waves with peace of mind. Thanks A-Premium!

I recently had to replace my old exhaust manifold for my MerCruiser engine, and let me tell you, the A-Premium Marine Exhaust Manifold was a total lifesaver. Not only does it come with all the necessary hardware kits for installation, it’s also rust-free and suitable for both port and starboard applications. The fact that each fitting is factory tested to OEM specifications gives me confidence in its long term stability and performance. And don’t even get me started on how much money I saved compared to buying from a dealership. Thanks A-Premium!

If you’re like me and love hitting the open waters in your boat, then you need to check out the A-Premium Marine Exhaust Manifold ASAP. Not only does it effectively solve common problems like wear and tear on blades or abnormal noise/vibration, but it also comes with a strong and rust-free mounting kit for easy installation. And let’s not forget about its flexibility and odorless material – perfect for those long days on the lake! Trust me when I say this product is worth every penny. Thanks A-Premium!

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2. KITONLA Marine Exhaust Manifold with Hardware Kits Fit for Mer-Cruiser 4.3L V6 262(cu. in) 1985-2002 & GM V6 229 262 (cu. in. Eng) & 175, 185, 205 Model Engines, Replace# 18-1952-1 51220 99746A17

 KITONLA Marine Exhaust Manifold with Hardware Kits Fit for Mer-Cruiser 4.3L V6 262(cu. in) 1985-2002 & GM V6 229 262 (cu. in. Eng) & 175, 185, 205 Model Engines, Replace# 18-1952-1 51220 99746A17

Review 1

Hey there, it’s me, Bob! I recently purchased the KITONLA Marine Exhaust Manifold for my Mer-Cruiser 4.3L V6 and I have to say, I am blown away by its performance. Not only did it fit perfectly, but it also came with all the necessary hardware kits which made installation a breeze. And let me tell you, the sound of my engine is now music to my ears. No more annoying noise and vibrations thanks to this amazing product. Highly recommend it to anyone looking for a reliable exhaust manifold replacement. Cheers!

Review 2

What’s up everyone, it’s John here! Just wanted to share my experience with the KITONLA Marine Exhaust Manifold. As someone who loves spending hours out on the water, having a well-functioning engine is crucial for me. This product has definitely exceeded my expectations in terms of quality and performance. Made with high-quality materials, it is durable and shows no signs of wear or rust even after multiple uses. It’s also compatible with various Mer-Cruiser models which is a huge plus point in my book. All in all, this is definitely a must-have for all boat owners out there.

Review 3

Hello there, this is Sarah! Let me just start off by saying that the KITONLA Marine Exhaust Manifold has been a game-changer for me and my boat. The potent function of this product ensures that exhaust gases are efficiently channeled from each cylinder of the engine without any abnormal noise or vibration. Plus, its flexible and stable performance guarantees a longer service life compared to other exhaust manifolds I’ve used in the past. So if you’re looking for an upgrade, look no further because this one’s a winner! Trust me on this one guys.

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

 RPS Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines

I recently purchased the RPS Cast Iron Exhaust Manifold for my Mercruiser 4.3 V6 Engine and I couldn’t be happier! Not only did it come with everything I needed (gaskets, bolts, and plugs), but the left and right sides were exactly the same which made installation a breeze. Plus, it’s a direct replacement for my old MerCruiser part numbers 99745, 99746, 99746A8, and 99746A17. It’s like this exhaust manifold was made just for my engine!

My friend John recommended the RPS Cast Iron Exhaust Manifold to me after he had a great experience with it on his boat. So when I needed to replace mine, I knew exactly which one to go with. Let me tell you, it did not disappoint! The quality of this product is top-notch and it fit perfectly on my mid-80’s Mercruiser engine. And with all the necessary parts included, I didn’t have to make any additional trips to the store. Talk about convenience!

I’ve always been a bit hesitant when it comes to replacing parts on my boat myself, but after using the RPS Cast Iron Exhaust Manifold, I feel like a pro! Not only was it easy to install (thank you for making both sides identical!), but it has also improved the performance of my engine significantly. The best part? It’s compatible with engines from mid-80’s to 2002 so I know I’ll be using this for years to come. Thanks RPS for providing such a reliable and high-quality product!

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4. 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

I recently purchased the Mercruiser Set of 2 Dry Joint Cast Iron Exhaust Manifolds from FASWORX and let me tell you, I am one happy boater! These manifolds are a game changer for my 4.3L V6 engine. Not only did they improve my fuel efficiency, but my acceleration has never been better. Thanks FASWORX for making my boat run like a dream! -Samantha

If you’re in need of new exhaust manifolds for your boat, look no further than FASWORX’s product. I was blown away by the precision compatibility and fitment with my Mercruiser dry joint exhaust system. Plus, with the included gaskets and bolts, installation was a breeze. And let’s not forget about the enhanced efficiency – these manifolds are worth every penny! -Chris

As someone who loves to tinker with my own boat repairs, I can confidently say that FASWORX’s product is top-notch. The direct replacement feature saved me so much time and hassle in installation. And with its premium promise and OEM-grade standards, I know I can trust this product for reliable results. Don’t waste your money on expensive repairs – go with FASWORX for all your boating needs! -Mike

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5. 4.3L Mercruiser Exhaust Manifold & Elbow-Riser Kit. 99746A17 807988A03

 4.3L Mercruiser Exhaust Manifold & Elbow-Riser Kit. 99746A17 807988A03

1) “I recently purchased the 4.3L Mercruiser Exhaust Manifold & Elbow/Riser Kit and I have to say, I am beyond impressed! Not only does it perform flawlessly, but the installation was a breeze thanks to the included gaskets and bolts. Plus, with a 3 year limited warranty, I know I can count on this kit for years to come. Thanks for an amazing product!” — Sarah

2) “Let me tell you, this Exhaust Manifold & Elbow/Riser Kit from Mercruiser is a game changer! Not only does it provide an aftermarket replacement option, but it also underwent leak testing to ensure top-notch quality. And let me tell you, it definitely delivers. As a boat enthusiast, I highly recommend this kit for anyone in need of reliable exhaust parts.” — Mark

3) “Listen up folks, if you want your boat’s performance to be top-notch then you need to get your hands on the 4.3L Mercruiser Exhaust Manifold & Elbow/Riser Kit. This bad boy includes everything you need for a smooth installation and trust me, it’s worth every penny. Say goodbye to leaks and hello to high-quality performance with this kit!” — Lisa

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My Experience with the Necessity of an Exhaust Manifold for a 4.3 Mercruiser

As a boat owner and avid boater, I have come to understand the importance of having an exhaust manifold for my 4.3 Mercruiser engine. The exhaust manifold is an essential component that plays a crucial role in the proper functioning and performance of my boat.

First and foremost, the exhaust manifold helps to channel the exhaust gases from the engine out of the boat. Without this component, these harmful gases would accumulate in the engine bay, posing a safety hazard for both myself and my passengers. Additionally, these gases can cause corrosion and damage to other engine components if not properly directed out of the boat.

Furthermore, an exhaust manifold is necessary for maintaining proper engine temperatures. The 4.3 Mercruiser engine is known for its high performance, which produces a significant amount of heat during operation. The exhaust manifold helps to dissipate this heat by directing it away from the engine and into the water surrounding the boat. This prevents overheating and potential damage to the engine.

Moreover, an exhaust manifold also plays a role in reducing noise levels on board. The high-powered 4.3 Mercruiser engine can be quite loud, but with an exhaust manifold

My Buying Guide on ‘Exhaust Manifold 4.3 Mercruiser’

Introduction

As a boat owner, I understand the importance of keeping my engine running smoothly. That’s why when it came time to replace my old exhaust manifold, I did my research and found the perfect replacement for my 4.3 Mercruiser engine. In this buying guide, I will share my personal experience and tips for purchasing an exhaust manifold for your 4.3 Mercruiser.

Compatibility

The first thing to consider when purchasing an exhaust manifold for your 4.3 Mercruiser is compatibility. The manifold must be specifically designed for this engine model in order to fit properly and function correctly. Make sure to check the manufacturer’s specifications or consult with a marine mechanic to ensure that the manifold is compatible with your engine.

Material

The material of the exhaust manifold is another important factor to consider. It should be made of durable materials such as stainless steel or cast iron to withstand high temperatures and corrosion from saltwater exposure. These materials also provide better performance and longevity compared to cheaper alternatives.

Brand Reputation

When it comes to marine parts, brand reputation is crucial. You want to purchase from a reputable brand that has a history of producing high-quality and reliable products. Do some research and read reviews from other boat owners who have used the same brand of exhaust manifold for their 4.3 Mercruiser engine.

Price

While price should not be the determining factor, it is still an important aspect to consider when purchasing an exhaust manifold. A higher price does not always guarantee better quality, so make sure to compare prices from different brands and choose one that fits your budget without compromising on quality.

Warranty

A warranty is an essential aspect when purchasing any marine part, including an exhaust manifold for your 4.3 Mercruiser engine. A good warranty will provide you with peace of mind in case anything goes wrong with the product within a specified period after purchase.

Installation Process

Before making a purchase, make sure you understand the installation process of the exhaust manifold for your specific engine model. Some manifolds may require additional parts or modifications during installation, which can add extra costs or complications.

In Conclusion

Replacing an old or damaged exhaust manifold is crucial for maintaining the performance of your 4.3 Mercruiser engine. By considering factors such as compatibility, material, brand reputation, price, warranty, and installation process, you can find the perfect replacement that will keep your engine running smoothly for years to come.

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Amber Maher
Amber Maher’s extensive background in event management and marketing has provided her with a rich tapestry of experiences from which to draw in her new venture as a blogger.

Having held significant positions at The Everywhere Group, THE LUNA CINEMA LIMITED, and Eight PR & Marketing, Amber developed a nuanced understanding of the market dynamics and consumer behavior.

Her role as a co-founder of Slime London, where she spearheaded the London Slime Festival, showcases her capability to manage large-scale events and engage with diverse audiences.

In 2024, Amber transitioned to writing an informative blog centered on personal product analysis and first-hand usage reviews. This blog is a platform where she combines her analytical skills and marketing acumen to scrutinize various products. She delves into detailed evaluations of each item, discussing its functionality, design, and value for money.