fits model: Marine, Mercruiser.

( Brand: Osco ), ( Manufacturer Part Number: 4354 ), ( Part Type: Exhaust ), ( Country/region Of Manufacture: United States )
The Mercruiser 4354 Riser Exhaust Marine OSCO Set is a high-quality exhaust system designed specifically for Mercruiser engines. This set includes a riser exhaust system and OSCO (Outboard Stern Concentric Outlet) fittings, making it a complete solution for upgrading or replacing your existing exhaust system.
The riser exhaust system is made of durable stainless steel, ensuring long-lasting performance and resistance to corrosion, even in harsh marine environments. It features a 4-inch diameter, providing optimal exhaust flow and reducing back pressure, which in turn improves engine performance and fuel efficiency. The riser design also allows for easier installation and maintenance, as it can be positioned higher than traditional exhaust systems, providing better clearance for props and other underwater components.
The OSCO fittings included in this set are also made of stainless steel and are designed to provide a secure and leak-free connection between the exhaust system and the engine. The OSCO system allows for easy installation and removal of the exhaust hoses, making routine maintenance and repairs simpler and faster.
In summary, the Mercruiser 4354 Riser Exhaust Marine OSCO Set is a top-of-the-line exhaust system that is designed to improve engine performance, reduce maintenance time, and provide long-lasting durability. Its stainless steel construction and OSCO fittings ensure a secure and leak-free connection, making it an ideal choice for boat owners looking to upgrade their exhaust system.
Pros of Buying Mercruiser 4354 Riser Exhaust Marine OSCO Set:1. Enhanced Performance: The riser exhaust system can help improve the performance of your engine by reducing back pressure, allowing for more efficient combustion.
2. Aesthetic Appeal: The riser exhaust system can give your boat a more polished and high-end look, especially when paired with polished engine components.
3. Durability: Mercruiser is a well-known and reliable brand, and their exhaust systems are built to last. The OSCO (Over-the-Engine) design helps protect the system from damage from waves and debris.
4. Easier Maintenance: The riser exhaust system can make it easier to service your engine, as the exhaust system is raised above the engine and is less likely to be submerged in water.
Cons of Buying Mercruiser 4354 Riser Exhaust Marine OSCO Set:1. Cost: Riser exhaust systems can be more expensive than traditional exhaust systems. The Mercruiser 4354 Riser Exhaust Marine OSCO Set is no exception.
2. Installation Complexity: Installing a riser exhaust system can be more complex than installing a traditional exhaust system. You may need to modify your boat's engine compartment to accommodate the riser system, and the installation process may require specialized tools and expertise.
3. Limited Compatibility: The Mercruiser 4354 Riser Exhaust Marine OSCO Set is only compatible with specific engine models and configurations. It may not be compatible with your boat's current engine system.
Conclusion:The Mercruiser 4354 Riser Exhaust Marine OSCO Set can provide enhanced performance, aesthetic appeal, and durability for your boat's engine. However, it comes with a higher cost and more complex installation process than traditional exhaust systems. If you are willing to invest in the upfront cost and have the necessary expertise to install the system, then the Mercruiser 4354 Riser Exhaust Marine OSCO Set can be a worthwhile investment for improving your boat's performance and appearance.
Recommendation:If you are considering purchasing the Mercruiser 4354 Riser Exhaust Marine OSCO Set, we recommend doing your research to ensure that it is compatible with your boat's engine system and that you have the necessary expertise to install it. It may be helpful to consult with a marine mechanic or boat dealer to get a better understanding of the installation process and the potential benefits of the riser exhaust system. Additionally, we recommend comparing the cost of the Mercruiser 4354 Riser Exhaust Marine OSCO Set to other riser exhaust systems to ensure that you are getting the best value for your money.
Now I am just parting the motor out. 3l Mercruiser motor. I purchased and installed these risers on my motor and within a few months of installation the motor developed another problem, not related to the cooling system.
Offer price is for the pair don't miss out, others are asking more for one riser. Removed from my slightly used exhaust risers. Risers will not be shipped in the box's shown in the pictures.