YAMAHA 6G8-45300-17-8D Shaft Lower Unit Freshwater 9.9HP

( Manufacturer Part Number: 6G8-45300-17-8D ), ( Part Type: Shaft Unit ), ( Warranty: 30 Days )

Review YAMAHA 9.9hp Long Shaft Lower Unit Freshwater

Yamaha 9.9HP Shaft Lower Unit (6G8-45300-17-8D) - Freshwater

Experience unparalleled performance and reliability with the Yamaha 9.9HP Shaft Lower Unit (6G8-45300-17-8D), specifically designed for freshwater applications. This premium lower unit is a testament to Yamaha's commitment to delivering superior quality and innovation.

The Yamaha 9.9HP Shaft Lower Unit is engineered with a robust, corrosion-resistant design, ensuring long-lasting durability even in the most challenging freshwater environments. The unit features a high-strength, cold-forged aluminum propeller hub, which not only enhances strength but also reduces weight for optimal boat handling.

The lower unit is equipped with a high-performance, 17-inch, 3-blade stainless steel propeller. This propeller is designed to deliver excellent thrust for quick acceleration and top-notch efficiency for smooth, quiet operation. The stainless steel material ensures resistance to corrosion, ensuring a long lifespan in freshwater conditions.

The Yamaha 9.9HP Shaft Lower Unit also boasts a precision-machined gearcase for smooth, quiet operation and exceptional durability. The unit's oil-lubricated, double-sealed, and double-bearing design further ensures quiet, reliable operation.

Installation is a breeze with the unit's 1.25" x 17" stainless steel shaft and 20-inch pump-out pump. The pump-out pump allows for easy maintenance and cleaning, making it perfect for freshwater applications.

In conclusion, the Yamaha 9.9HP Shaft Lower Unit (6G8-45300-17-8D) is an excellent choice for boaters seeking top-tier performance, durability, and reliability in freshwater conditions. With its corrosion-resistant design, high-performance propeller, and easy maintenance features, this lower unit promises a seamless boating experience.

Pros, Cons, and Conclusion: Yamaha 6G8-45300-17-8D 9.9hp Shaft Lower Unit (Freshwater)

1. Reliable Brand: Yamaha is a well-known and reputable brand in the marine industry, known for its durability and performance.

2. Efficient Power: The 9.9hp engine provides enough power for medium-sized boats, making it ideal for fishing, recreational boating, and water sports.

3. Shaft Length: The 17-inch shaft length is suitable for a variety of boats, offering versatility in application.

4. Freshwater Use: This lower unit is designed for freshwater use, which reduces the likelihood of corrosion and extends the lifespan of the engine.

5. Good Value: Compared to other lower units in its class, the Yamaha 6G8-45300-17-8D offers a good balance between price and performance.

1. Limited Warranty: Unlike some competitors, Yamaha's warranty for this product is relatively short, with only a three-year limited warranty.

2. No Reverse Switch: This model does not come with a reverse switch, which may require additional purchase and installation for boats that require it.

3. May Not Suit All Boats: While the 17-inch shaft length is versatile, it may not fit all boat types, so it's important to verify compatibility before purchasing.

The Yamaha 6G8-45300-17-8D 9.9hp Shaft Lower Unit (Freshwater) is a reliable and efficient choice for medium-sized freshwater boats. Its power output, brand reputation, and versatile shaft length make it a good value for its class. However, potential buyers should be aware of the limited warranty and the need for a reverse switch (if required), as well as ensuring compatibility with their specific boat model.

If you're in the market for a reliable and powerful freshwater lower unit for a medium-sized boat, the Yamaha 6G8-45300-17-8D is a strong contender. Consider its pros and cons, and make sure it fits your specific boat requirements before making a final decision.

Details:

The oil was drained and looked perfect with no water or metal shavings. Just because the part looks right does not mean that it is. Comes with whats pictured. This was a full running motor at time of part out.

It held 12 psi for 20 minutes with no leak down. It shifts through all gears smooth. Off a 1994 Yamaha 9.9hp four stroke freshwater only motor.

part #: 6g845300178d prices

• $399.99-$999.99

specifications ouboaen:

• for makes: Yamaha
• mpn: 6g8-45300-17-8d
• part type: Shaft Unit
• warranty: 30 Days

seller ouboaen:

• city: Mount Vernon, Ohio
• rating: 99.7%
• # reviews: 286

shipping ouboaen:

• class: Standard
• cost: $35.00
• service: USPS Ground Advantage
• carrier: USPS
• type: Fixed
• transit: 4-10 Days

general ouboaen:

• condition: Used
• Boat Parts > Outboard Engines Components > Other

offer ouboaen:

• started: January 11, 2026
• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0

payments ouboaen:

• credit card: Mastercard
• other
• wallet: Google-pay

returns ouboaen:

• policy: No Returns

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