fits make: Mercury. year: 1983–1987.

( Brand: Mercury Force ), ( Manufacturer Part Number: 817739A6 ), ( Part Type: Hp Flywheel Motor Engine )
The 1983-1987 Flywheel 817739A6 Force Outboard Boat Motor Engine, with a power output of 45-50 HP, is a testament to Mercury's engineering excellence and commitment to delivering high-performance marine propulsion solutions. This 654 Mercury engine is designed to meet the demands of avid boaters who seek power, reliability, and efficiency on the water.
The 817739A6 Force engine features a robust 4-stroke, 2-cylinder design, delivering smooth and quiet operation, even at high RPMs. The engine's displacement of 173 cubic inches provides ample power to propel your boat through varied water conditions with ease. The engine is equipped with a 1.65:1 gear ratio, ensuring optimal power delivery and efficient performance.
The 45-50 HP Force engine is known for its exceptional fuel efficiency, thanks to its advanced combustion system and optimized engine design. This engine also features Mercury's Advanced Mid-Upper Cylinder (AMUC) technology, which promotes superior power, torque, and performance.
The 1983-1987 Flywheel 817739A6 Force Outboard Boat Motor Engine is equipped with a high-volume fuel system, ensuring consistent power delivery and minimizing fuel starvation during high-load conditions. The engine also features Mercury's patented SmartCraft digital electronic controls, allowing for easy engine management, diagnostics, and adjustments via a digital display.
The Force engine's reliability is further enhanced by its durable, corrosion-resistant materials, including a powder-coated aluminum alloy cylinder head and a high-quality cast-iron cylinder block. The engine is also equipped with Mercury's proprietary freshwater-cooling system, ensuring optimal operating temperatures and extended engine lifespan.
The 1983-1987 Flywheel 817739A6 Force Outboard Boat Motor Engine is an ideal choice for boaters seeking a powerful, efficient, and reliable engine for their watercraft. Whether you're cruising, fishing, or waterskiing, this Mercury engine is designed to deliver the performance and enjoyment you demand.
Pros of buying a 1983-1987 Flywheel 817739A6 Force 45-50 HP outboard boat motor engine 654 Mercury:1. Affordability: Compared to newer models, these engines are often more affordable due to their age.
2. Availability of Parts: Since these engines have been in use for several decades, many replacement parts are still readily available.
3. Simplicity: Older engines often have fewer electronic components, making them easier to diagnose and fix.
4. Familiarity: Many boat owners and mechanics are familiar with the workings of older engines, which can make it easier to find help if needed.
Cons of buying a 1983-1987 Flywheel 817739A6 Force 45-50 HP outboard boat motor engine 654 Mercury:1. Lower Power: These engines may not provide the same power and performance as newer models.
2. Lower Fuel Efficiency: Older engines are generally less fuel-efficient than newer ones.
3. Maintenance Requirements: Older engines may require more frequent maintenance and repairs.
4. Environmental Concerns: Older engines may not meet current emissions standards and may not be as environmentally friendly.
Conclusion:If you're looking for an affordable and reliable outboard engine for older or smaller boats, a 1983-1987 Flywheel 817739A6 Force 45-50 HP outboard boat motor engine 654 Mercury could be a good option. However, it's important to consider the potential drawbacks, such as lower power, fuel efficiency, and maintenance requirements. If you're looking for more power and better fuel efficiency, you may want to consider a newer model. Ultimately, the best choice will depend on your specific needs and budget.
Recommendation:Before making a purchase, it's recommended to do thorough research on the engine's history, condition, and maintenance history. It's also a good idea to have the engine inspected by a qualified mechanic to ensure it's in good working order. Additionally, it's important to factor in the cost of ongoing maintenance and repairs when budgeting for the engine.
Fits various Force 50hp outboard motors.
May fit more model's condition: used. Please see included pictures.
Part: used flywheel 817739A6. Excellent condition.
Directly across from Lowe's and 84 lumber.