fits make: Yamaha. year: 2025.

( Manufacturer Part Number: 64H-45300-22-8D ), ( Part Type: Counter Unit Gear Case )
The Yamaha 64H-45300-22-8D Counter Rotation Lower Unit Gear is a high-performance accessory designed for outboard motors. This gear is specifically engineered for Yamaha 150-200 HP engines, providing optimal power transfer and efficiency.
The 64H-45300-22-8D is a counter-rotation lower unit, which means it rotates in the opposite direction of the propeller, reducing the torque reaction on the boat and providing better maneuverability in tight turns. This feature is particularly beneficial for high-speed boats and fishing vessels where precise control is essential.
The gear is made of high-quality materials, ensuring durability and longevity. The housing is made of corrosion-resistant aluminum alloy, while the gears are made of heat-treated, high-strength steel. This combination ensures that the gear can withstand the harsh marine environment and the high power output of the 150-200 HP engine.
The gear ratio of the 64H-45300-22-8D is 2.5:1, providing a balance between speed and torque. This ratio is ideal for boats that require a good balance between acceleration and top speed. The gear is also equipped with a multipurpose gearcase, which can be used for both jet and propeller drive applications.
The 64H-45300-22-8D is easy to install and maintain. It comes with a detailed installation manual and all the necessary hardware. The gear is also designed for easy servicing, with easy-to-reach components and a simple oil change system.
In summary, the Yamaha 64H-45300-22-8D Counter Rotation Lower Unit Gear is a high-performance, durable, and easy-to-use accessory for Yamaha 150-200 HP engines. Its counter-rotation feature provides better maneuverability, while its 2.5:1 gear ratio provides a good balance between speed and torque. With its high-quality materials and easy maintenance, this gear is a great investment for any boat owner looking to improve their boat's performance and durability.
Pros of buying Yamaha 64H-45300-22-8D Counter Rotation Lower Unit:1. Powerful: With a horsepower range of 150-200, this lower unit is designed for high-performance outboard engines, providing excellent thrust and speed.
2. Counter Rotation: The counter rotation feature reduces the wake and improves maneuverability, making it easier to turn and maneuver in tight spaces.
3. Durable: Yamaha is known for its high-quality materials and construction, ensuring that this lower unit is built to last.
4. Versatile: The 25-inch size makes it suitable for a wide range of boat types and sizes, from small skiffs to larger fishing boats.
Cons of buying Yamaha 64H-45300-22-8D Counter Rotation Lower Unit:1. Price: As a high-performance lower unit, it comes with a higher price tag compared to other options on the market.
2. Limited Compatibility: While it is versatile, it may not be compatible with all boat types and outboard engine models. It is important to check the specifications of your boat and engine to ensure compatibility.
3. Maintenance: Like all mechanical components, the lower unit requires regular maintenance to ensure optimal performance and longevity.
In conclusion, the Yamaha 64H-45300-22-8D Counter Rotation Lower Unit is a high-quality, high-performance option for those looking to upgrade their boat's propulsion system. Its powerful horsepower range, counter rotation feature, and durable construction make it an excellent choice for boaters who prioritize speed and maneuverability. However, its higher price tag and limited compatibility are important considerations to keep in mind before making a purchase.
Recommendation: If you are in the market for a new lower unit and have the budget for it, the Yamaha 64H-45300-22-8D is a great option to consider. Its powerful performance, versatility, and durability make it an excellent choice for boaters who want the best. However, be sure to research your boat and engine specifications to ensure compatibility, and be prepared for the ongoing maintenance requirements.
Tested working - Shifts and spins properly, fluid looked OK with no metal shavings at all. Clean unit, not corroded, keg intact. Good working clean LH Gear case removed from 2003 HPDI 200. 25 shaft size L.
See pictures, part number and for fitment info.