fits model: 850. make: Mercury. year: 1974.

( Manufacturer Part Number: 2104-5642A1 ), ( Part Type: Cowl Cover Motor )
The Mercury 2104-5642A1 1974 850 85hp 4-cylinder front cowl cover boat motor outboard is a classic and powerful marine engine. This motor features a 4-cylinder, in-line, 2-stroke engine with a displacement of 2104 cubic centimeters. It is equipped with an 85 horsepower rating, making it a suitable choice for larger boats or for those seeking a high-performance engine.
The front cowl cover design of this motor provides excellent protection for the engine's vital components, such as the carburetor and ignition system. The cowl cover also helps to reduce noise and vibration, making for a more enjoyable boating experience. The motor is equipped with a 1.65:1 gear ratio, which provides a good balance between acceleration and top speed.
The Mercury 2104-5642A1 1974 850 85hp 4-cylinder front cowl cover boat motor outboard comes with a multi-point fuel injection system, which ensures efficient fuel delivery and reduces emissions. It also features a hydraulic power steering system, which makes for easy maneuverability and improved handling.
This motor is designed for use in freshwater or saltwater environments and is equipped with corrosion-resistant materials, such as stainless steel fasteners and a marine-grade aluminum alloy engine block. The motor is also equipped with a water pump, which helps to keep the engine cool and protect it from overheating.
The Mercury 2104-5642A1 1974 850 85hp 4-cylinder front cowl cover boat motor outboard is a reliable and powerful engine that is well-suited for a wide range of boating applications. Its classic design and high-performance capabilities make it a popular choice among boaters and marine enthusiasts.
Pros of buying a Mercury 2104-5642A1 1974 850 85hp 4-cyl front cowl cover boat motor outboard:1. Powerful: With a displacement of 850 cubic inches and 85 horsepower, this motor is powerful enough to handle most small to medium-sized boats.
2. Reliability: Mercury is a well-known brand with a reputation for building durable and reliable outboard motors.
3. Easy to maintain: The 4-cylinder engine design is easier to maintain compared to 2-cylinder engines. It also has a front cowl cover, which protects the engine from the elements.
4. Affordability: Compared to newer models, this motor is more affordable, making it a good option for budget-conscious boaters.
Cons of buying a Mercury 2104-5642A1 1974 850 85hp 4-cyl front cowl cover boat motor outboard:1. Age: This motor is over 40 years old, which means it may have some wear and tear that requires repair or replacement.
2. Availability of parts: Finding replacement parts for an older motor like this one can be challenging, and they may be more expensive than parts for newer models.
3. Fuel efficiency: Older motors are generally less fuel-efficient than newer models, which can add to the cost of operating the boat.
4. Technology: This motor does not have modern features like digital gauges or electronic fuel injection, which can make it less convenient to use.
Conclusion:The Mercury 2104-5642A1 1974 850 85hp 4-cyl front cowl cover boat motor outboard is a powerful and reliable option for budget-conscious boaters. However, its age means it may require more maintenance and repairs, and finding replacement parts can be challenging. Additionally, it lacks modern features that newer motors offer. If you are looking for a reliable and affordable motor and are willing to put in the maintenance, this motor could be a good option for you.
Recommendation:Before making a decision, it is important to thoroughly inspect the motor to ensure it is in good condition. Check for any signs of damage or wear and tear, and consider having a professional mechanic perform a pre-purchase inspection. It is also a good idea to research the availability and cost of replacement parts before making a purchase. If you are comfortable with the condition of the motor and the availability of parts, this could be a good option for you. However, if you are looking for a more modern and convenient motor, you may want to consider a newer model.
For more vintage parts. CAME OFF A PARTED OUT 1974 MERCURY 850 85HP 4-CYL MOTOR SER #3871209. MERCURY PART #2104-5642A1.