fits make: Yamaha. year: 1984–2020.

( Manufacturer Part Number: 6H4-45300-12-EK ), ( Part Type: Unit Shaft ), ( Country/region Of Manufacture: Japan )
The 6H4-45300-12-ek is a high-performance outboard motor designed for marine applications, specifically for Yamaha units from the years 1984 to 1993. This powerful motor comes with a 40hp or 50hp engine, making it perfect for a variety of watercraft, including boats, jet skis, and personal watercraft.
The unique feature of this motor is its 20-inch shaft length, which provides excellent maneuverability and control, especially in tight turns and narrow waterways. The lower unit, specifically the Pro50LF, is known for its durable construction, with a high-quality alloy material that can withstand the harsh marine environment.
The 6H4-45300-12-ek is equipped with a four-stroke engine, which is more fuel-efficient and environmentally friendly than two-stroke engines. It also produces less noise and vibration, providing a smoother and more comfortable riding experience. The motor's four-cylinder design provides robust power and excellent acceleration, making it ideal for water sports, fishing, and cruising.
The 6H4-45300-12-ek is also easy to maintain and service, with a simple and intuitive design. It features a dry sump oil system, which keeps the oil separate from the water in the engine, reducing the risk of corrosion and extending the engine's lifespan. The motor also comes with a built-in oil filter and a water separator, which help to ensure that the engine is always running at its best.
In summary, the 6H4-45300-12-ek is a high-performance outboard motor that is perfect for Yamaha units from the 1980s and 1990s. Its 20-inch shaft length, four-stroke engine, and durable lower unit make it a versatile and reliable choice for a variety of watercraft activities. With its easy maintenance and service features, this motor is an excellent investment for any boat or personal watercraft owner.
Pros of buying a 6H4-45300-12-EK 1984-1993 40hp/50hp Yamaha Unit 20 Strokes Pro50LF Lower:1. Reliability: Yamaha is known for its high-quality and reliable engines, which is a significant advantage for this outboard motor.
2. Versatility: This outboard motor can be used with both 40hp and 50hp engines, making it a versatile option for various boat sizes and power needs.
3. Long lifespan: With proper maintenance, this outboard motor can last for many years, making it a cost-effective option in the long run.
4. Easy to install: The Pro50LF lower unit is designed to be easy to install, making it a convenient option for both DIY enthusiasts and professional installers.
Cons of buying a 6H4-45300-12-EK 1984-1993 40hp/50hp Yamaha Unit 20 Strokes Pro50LF Lower:1. Availability of parts: Older outboard motors can be challenging to find replacement parts, which could lead to longer repair times and higher costs.
2. Limited features: Compared to newer models, this outboard motor may not have the latest features such as electronic fuel injection or digital controls.
3. Higher fuel consumption: Older outboard motors may consume more fuel than newer models, which could increase operating costs.
Conclusion:The 6H4-45300-12-EK 1984-1993 40hp/50hp Yamaha Unit 20 Strokes Pro50LF Lower is a reliable and versatile option for boat owners looking for an outboard motor with a long lifespan. However, it may not have the latest features or the easiest availability of replacement parts. Ultimately, the decision to buy this outboard motor depends on the boat owner's specific needs, preferences, and budget.
Recommendation:If you are looking for a reliable and versatile outboard motor with a long lifespan, the 6H4-45300-12-EK 1984-1993 40hp/50hp Yamaha Unit 20 Strokes Pro50LF Lower could be a good option for you. However, make sure to factor in the potential costs of replacement parts and higher fuel consumption. Additionally, consider whether the lack of modern features is a deal-breaker for you. If so, you may want to explore newer models with more advanced features.
Oem 40hp 50hp Yamaha lower unit assay 20 shaft 2 strokes PRO50LF working unit, bolt on go. And 30 day warranty. Unit comes with fin and prop.