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GLM Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines 1983-2002, Replaces Part Numbers 99745, 99746, 99746A8, 99746A17
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GLM Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines 1983-2002, Replaces Part Numbers 99745, 99746, 99746A8, 99746A17
These are the best aftermarket exhaust manifolds available!
GLM Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines 1983-2002, Replaces Part Numbers 99745, 99746, 99746A8, 99746A17
Item #: 38648126

GLM Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines 1983-2002, Replaces Part Numbers 99745, 99746, 99746A8, 99746A17

Item #: 38648126

€ 269

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Order now and get it around Tuesday, July 21
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What Stands Out

Durable Construction
Crafted from high-quality cast iron, this manifold ensures exceptional strength and longevity, providing a reliable performance for your Mercruiser 4.3 V6 engine over years of use.
Perfect Fit
Designed specifically for Mercruiser 4.3 V6 engines from 1983 to 2002, this manifold provides an exact replacement, ensuring easy installation and optimal function without modification.
Performance Improvement
Enhances exhaust flow efficiency, resulting in better engine performance and fuel economy compared to competitors, addressing common problems seen in older models while maximizing power output.

Product Details

Find the best deals on GLM cast iron exhaust manifold for Mercruiser 4.3 V6 engines. Replace part numbers 99745, 99746, 99746A8, 99746A17. Shop now at Ubuy Malta.
Item Weight40 lbs (18.14 kg)

Who Should Buy?

Suitable For
  • Boat Owners

    Ideal for boat owners needing a durable and reliable replacement manifold for their Mercruiser 4.3 V6 engines.

  • Marine Mechanics

    Useful for marine mechanics looking to replace faulty exhaust manifolds in older Mercruiser models efficiently.

  • DIY Enthusiasts

    Great option for DIY enthusiasts wanting a straightforward install with high-quality cast iron materials.

Not Suitable For
  • Newer Models

    Not suitable for newer Mercruiser engines beyond 2002 that may require different specifications and fittings.

  • Lightweight Solutions

    Users seeking lightweight exhaust components might find cast iron too heavy for their preferences.

  • Performance Upgrades

    Performance enthusiasts may prefer aftermarket options that offer superior airflow or other enhanced characteristics.

Product Description

GLM Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines 1983-2002, Replaces Part Numbers 99745, 99746, 99746A8, 99746A17

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What are the benefits of using a GLM Cast Iron Exhaust Manifold?

    Answer: The GLM Cast Iron Exhaust Manifold offers enhanced durability and heat resistance, making it ideal for marine environments. Cast iron construction provides excellent longevity compared to aluminum alternatives. This product is specifically designed for Mercruiser 4.3 V6 engines, ensuring a perfect fit and optimal performance. It also features superior exhaust flow characteristics which can lead to improved engine efficiency. Installing this manifold can enhance overall boating experiences by reducing exhaust backpressure, allowing for a smoother and more powerful operation.
  • Question: How do I know if the GLM exhaust manifold is compatible with my engine?

    Answer: Compatibility is crucial when selecting an exhaust manifold. The GLM exhaust manifold is designed specifically for Mercruiser 4.3 V6 engines produced from 1983 to 2002 and replaces part numbers 99745, 99746, 99746A8, and 99746A17. To confirm compatibility, check your engine model and year using the manufacturer’s documentation. This precise fit minimizes the risk of installation issues and ensures optimal engine performance. If your engine matches these specifications, you can enjoy the benefits of this high-quality manifold without compatibility concerns.
  • Question: What is the installation process for the GLM Cast Iron Exhaust Manifold?

    Answer: Installing the GLM Cast Iron Exhaust Manifold involves several steps: first, ensure the engine is cool and disconnect the battery. Remove the old manifold by unbolting it from the cylinder head and disconnecting any attached pipes. Clean the mounting surfaces thoroughly before installing the new manifold. Align it correctly and torque the bolts to the manufacturer’s specified settings. Proper installation is essential to prevent exhaust leaks and ensure long-lasting performance. Using professional assistance can guarantee a flawless process, enhancing your engine's efficiency and reliability.
  • Question: How does the GLM exhaust manifold improve performance?

    Answer: The GLM exhaust manifold is engineered to enhance engine performance by optimizing exhaust flow. It reduces backpressure, allowing the engine to expel exhaust gases more efficiently. This results in improved fuel efficiency and power delivery, enabling your boat to perform better in various conditions. Furthermore, the cast iron material helps in dissipating heat effectively, keeping the engine cooler. This manifold is particularly beneficial when towing or navigating rough waters, as it maximizes the engine’s output, ensuring a smooth and powerful ride every time.
  • Question: Is the GLM Cast Iron Exhaust Manifold rust-resistant?

    Answer: Yes, the GLM Cast Iron Exhaust Manifold is designed with a focus on marine durability, which includes rust resistance. The cast iron material is treated to withstand harsh marine environments, helping prevent corrosion commonly caused by saltwater. This feature is vital for maintaining the manifold's integrity over time, especially for those who frequently use their boats in saltwater conditions. Choosing a rust-resistant manifold not only extends the lifespan of your exhaust system but also ensures reliable performance over the years.
  • Question: What maintenance does the GLM exhaust manifold require?

    Answer: Routine maintenance of the GLM exhaust manifold includes periodic inspections for leaks and corrosion, especially if used in saltwater. Regularly check connections and mounting bolts to ensure they are tight and intact. Cleaning any residue buildup or salt deposits can also prolong the manifold's life. If you notice any issues like unusual noises or performance problems, it's advisable to have the manifold inspected promptly. Investing time in maintenance can help sustain your boat's performance and avoid unexpected repairs.
  • Question: Can I use this manifold in freshwater applications?

    Answer: Yes, the GLM Cast Iron Exhaust Manifold is suitable for freshwater applications. Its robust construction and rust-resistant properties make it adaptable for various marine environments. This manifold will perform efficiently whether you’re using your boat in lakes, rivers, or coastal waters. By choosing this product, you’re ensuring that your engine can operate smoothly without worrying about material degradation over time, making it an excellent choice for both freshwater and saltwater boaters.
  • Question: What is the lifespan of the GLM exhaust manifold?

    Answer: The lifespan of the GLM Cast Iron Exhaust Manifold can vary depending on usage conditions and maintenance practices. However, due to its durable cast iron construction and rust-resistant treatment, it is designed to last considerably longer than standard aluminum alternatives. With proper installation and regular maintenance, it can provide reliable service for many seasons. Boaters who frequently maintain their vessels and operate under moderate conditions typically see extended performance and durability from this manifold.
  • Question: What are the signs of a failing exhaust manifold?

    Answer: Signs of a failing exhaust manifold include unusual noises such as ticking or popping, which may indicate leaks, as well as an increase in engine temperature that can signal trapped exhaust gases. You may also notice a decline in performance, such as reduced power or efficiency, and visible signs of exhaust leaks around the manifold. Addressing these issues promptly by replacing the manifold can prevent more severe damage to the engine, ensuring your boat continues to operate smoothly and effectively.
  • Question: Where can I buy the GLM Cast Iron Exhaust Manifold?

    Answer: You can buy the GLM Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 engines from Ubuy. They offer a wide selection of automotive parts, including this specific exhaust manifold. Ubuy provides various options for delivery and convenience, making it a top choice for your purchasing needs. Their platform ensures a smooth shopping experience, allowing you to easily find the right manifoold for your engine specifications.

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  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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€ 269

Order now and get it around Tuesday, July 21

QTY:

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Features & Benefits

  • Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 engines from 1983 to 2002.
  • Replaces MerCruiser part numbers 99745, 99746, 99746A8, 99746A17.
  • Includes gaskets, plugs, drain elbow, and blue drain plug.
  • 100% Leak Tested. Uniform wall thickness.
  • Clean exhaust passages. Shot peened for smooth external finish.
  • All mounting surfaces CNC machined to guarantee exacting gasket mating surface. Coated with a baked enamel finish.

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