
( Brand: Mercruiser ), ( Manufacturer Part Number: 815559-C-1 ), ( Part Type: Manifold Exhaust ), ( Country/region Of Manufacture: United States ), ( Fits: Mercruiser 4-cylinder 1983-1995 With Mercarb ), ( Item Weight: 45.9 Lbs ), ( Manufacturer: Sierra ), ( Material: Cast Iron ), ( Replaces: 99798a18, 806867a8, 42673 ), ( UPC: 808282257637 ), ( Part Number: 18-1956-1 )
The 3.0 manifold with the part numbers 99798a18, 2.5 815559-c-1, 806867a8, and 18-1956-1 is an essential component for your Mercruiser exhaust system. This manifold is specifically designed for models from 1983 to 1995, making it a valuable addition for boat owners in that era.
The manifold is made with high-quality materials, ensuring durability and reliability. It features a 3.0-inch diameter, which allows for efficient exhaust flow, reducing backpressure and increasing engine performance. The manifold's design is intricate, with multiple inlets and outlets, ensuring a proper distribution of exhaust gases for optimal engine operation.
The 2.5 815559-c-1 part number is an alternative identification for this manifold, providing another way to ensure you're purchasing the correct component for your Mercruiser engine. The 806867a8 and 18-1956-1 part numbers further confirm its compatibility with your engine, ensuring a seamless installation.
This manifold is a crucial part of your exhaust system, and its precise fit and function are essential for maintaining your engine's efficiency and performance. The 3.0 manifold with the specified part numbers is a reliable and affordable solution for boat owners looking to maintain or upgrade their Mercruiser engine's exhaust system.
The 3.0 manifold (part number 99798a18) for Mercruiser engines is a crucial component for improving the performance and efficiency of your boat's exhaust system. Here are some pros and cons to consider before making a purchase:
Pros:1. Improved engine performance: A new manifold can help improve the engine's combustion efficiency, leading to better power output and acceleration.
2. Reduced exhaust backpressure: A well-designed manifold can help reduce exhaust backpressure, allowing the engine to breathe more easily and improve fuel efficiency.
3. Enhanced durability: A high-quality manifold is made from stronger materials, reducing the risk of cracks or leaks over time.
4. Better sound quality: A new manifold can help reduce exhaust noise, making your boat quieter and more enjoyable to operate.
Cons:1. Cost: Replacing a manifold can be a significant investment, especially if you are buying a high-quality, aftermarket part.
2. Installation complexity: Installing a new manifold can be a challenging task, requiring specialized tools and knowledge to ensure a proper fit and function.
3. Potential for additional issues: Replacing a manifold can also reveal other issues with your engine or exhaust system, such as leaks or damage, that may need to be addressed.
Conclusion:If you are looking to improve the performance and efficiency of your Mercruiser engine, a new manifold can be a worthwhile investment. However, be prepared for the cost and installation complexity, and consider having the work done by a professional to ensure proper installation and avoid additional issues.
Recommendation:If you decide to purchase a new manifold, be sure to choose a high-quality part from a reputable manufacturer. Look for parts that are designed specifically for your engine model and year, and consider investing in additional accessories such as gaskets, bolts, and sealants to ensure a proper installation. Finally, consider having the installation done by a professional to ensure that the job is done right and to avoid any potential issues down the line.
5l This manifold is cast iron construction. Liter engines with mercarb in.
Carburetor mounting pattern is x Cross reference part number Mercruiser 99798A18, 806867A8, 42673 Oslo motors glam products Barr Mercruiser 4 cylinder exhaust manifold MC Mercruiser 4 cylinder exhaust manifold direct replacement Mercruiser exhaust manifold fits Mercruiser 3.
Manifold is for use with electric choke only. 4mm bolt to center. 5l 153 CID and 3.
Mercruiser 8mm by 181 CID with mercarb 5 bolt pattern with electric choke Barr Mercruiser 4 cylinder exhaust manifold MC to 1995 Mercruiser Fits model's 120 and 140 and accepts a mercarb Mercruiser carburetor not a Rochester.
Bolt pattern bolt mounting replaces Mercruiser part number b99798a9 Barr mc199798.