fits make: Mercury. year: 1977.

( Manufacturer Part Number: 3390291 ), ( Part Type: Start Hp Flywheel ), ( Country/region Of Manufacture: United States )
The Mercury 3390291 35/40 HP Outboard Engine with Flywheel Electric Start (Model 7912A12) is a powerhouse of marine propulsion, designed for those who demand the best in performance and reliability. This four-stroke, two-cylinder outboard engine delivers an impressive power output of 35 to 40 horsepower, providing ample thrust for a wide range of watercraft, from mid-sized boats to larger vessels.
The engine features a robust, all-aluminum construction, ensuring durability and corrosion resistance in even the most challenging marine environments. The Mercury 3390291 is equipped with a high-quality flywheel-mounted electric start, eliminating the need for manual pulling and providing quick, effortless engine ignition. The electric start system includes a backup pull-start as a backup, ensuring that you're never left stranded.
The engine's advanced fuel injection system ensures optimal fuel efficiency and consistent power delivery, while the digital electronic controls allow for precise throttle and shift control. The Mercury 3390291 also features a high-output alternator, providing ample power for onboard electronics and accessories.
The engine's tilt and trim system allows for easy adjustment of the outdrive angle, ensuring optimal performance in a variety of water conditions. The Mercury 3390291 is also equipped with a SmartCraft electronic control system, providing real-time engine diagnostics and fuel management information.
The Mercury 3390291 35/40 HP Outboard Engine with Flywheel Electric Start is backed by Mercury Marine's industry-leading warranty and support network, ensuring peace of mind for years to come. Whether you're a seasoned boater or a first-time owner, the Mercury 3390291 is a smart investment in your marine lifestyle.
Pros of the Mercury 3390291 35/40 HP Outboard with Electric Start:1. Powerful Engine: The Mercury 3390291 engine offers a power output of 35 to 40 HP, making it suitable for medium to large-sized boats.
2. Electric Start: The electric start feature ensures easy and hassle-free engine starting, especially in cold weather or when the battery is low.
3. Four-Stroke Design: The four-stroke design of the engine is more fuel-efficient and environmentally friendly than two-stroke engines, reducing emissions and fuel consumption.
4. Reliability and Durability: Mercury is a well-known brand with a reputation for producing reliable and durable outboard engines.
5. Modern Features: The engine comes with features such as a power trim and tilt, which allow for easy maneuvering of the boat.
Cons of the Mercury 3390291 35/40 HP Outboard with Electric Start:1. Price: The Mercury 3390291 is a high-end outboard engine, and its price reflects this. It may be out of budget for some boat owners.
2. Weight: The engine is relatively heavy, which may make it more difficult to install or transport.
3. Maintenance: Like any engine, the Mercury 3390291 will require regular maintenance to ensure it continues to run smoothly. This can be time-consuming and costly.
Conclusion:The Mercury 3390291 35/40 HP Outboard with Electric Start is a powerful and reliable engine that offers modern features such as an electric start and power trim and tilt. Its four-stroke design is more fuel-efficient and environmentally friendly than two-stroke engines. However, its high price and weight may be a deterrent for some boat owners. If you have the budget and are looking for a high-performance outboard engine, the Mercury 3390291 is a great option.
Recommendation:If you are looking for a high-performance outboard engine with modern features and a reliable reputation, the Mercury 3390291 35/40 HP Outboard with Electric Start is a great option. However, make sure to consider your budget and the size and weight of your boat before making a purchase. It may be worthwhile to compare prices with other brands and models to ensure you are getting the best value for your money.
Came from a 1979 Mercury 40hp 2 cylinder Comes as pictured.