66E-9001-00 YAMAHA Waverunner Intermediate Midshaft GP800

Review YAMAHA Waverunner Intermediate Midshaft Oem for GP800 GP760 1997–2000

The Yamaha 66e-9001-00 Waverunner GP800/GP760 Intermediate Midshaft is a high-performance jet ski engine, specifically designed for the GP800 and GP760 models produced between 1997 and 2000. This midshaft is an essential component of the jet ski, responsible for transferring power from the engine to the pump, ultimately propelling the watercraft forward.

This intermediate midshaft is a significant upgrade from the standard unit, offering increased power and durability. The precision-machined, heat-treated aluminum alloy construction ensures maximum strength and resistance to fatigue, while its lightweight design contributes to improved overall performance.

The 66e-9001-00 midshaft is engineered with a unique, sealed bearing system that minimizes water intrusion and reduces the potential for corrosion. This feature significantly extends the lifespan of the midshaft and reduces the need for frequent maintenance.

The midshaft is characterized by its robust, single-piece design, which minimizes the number of joints and connections, resulting in enhanced durability and reliability. Additionally, the midshaft boasts a high-strength, reinforced coupling system that ensures a secure connection between the engine and the pump.

Installation of the Yamaha 66e-9001-00 Waverunner GP800/GP760 Intermediate Midshaft is a straightforward process, requiring no modifications to the engine or the watercraft. The midshaft is compatible with both the GP800 and GP760 models and can be easily identified by the part number stamped on the unit.

In conclusion, the Yamaha 66e-9001-00 Waverunner GP800/GP760 Intermediate Midshaft is a high-performance, durable, and reliable upgrade for jet ski enthusiasts seeking to enhance the power and longevity of their GP800 or GP760 Waverunner models. With its precision-engineered design, advanced materials, and superior durability, this midshaft is an excellent investment for any serious watercraft owner.

The Yamaha GP800 and GP760 waverunners, specifically the 1997-2000 models with an intermediate midshaft, are popular choices among watercraft enthusiasts. Below are some pros and cons that might help in your decision-making process.

1. Power: Both models come with powerful engines. The GP800 has a 753cc, three-cylinder engine that delivers 80 horsepower, while the GP760 has a 750cc, four-cylinder engine that delivers 76 horsepower.

2. Handling: These waverunners are known for their excellent handling capabilities. They have a narrow, V-hull design that provides stability and agility, making them ideal for intermediate riders looking for a fun and responsive watercraft.

3. Versatility: They offer a good balance between performance and comfort. They have ample storage space, comfortable seating, and can reach impressive speeds, making them suitable for a variety of water activities.

4. Durability: Yamaha is known for its reliable engines, and these models are no exception. They have a robust design and are built to last, making them a good investment for those looking for a long-term watercraft.

1. Fuel Efficiency: These waverunners are not the most fuel-efficient watercraft on the market. Their powerful engines consume a significant amount of fuel, which can lead to higher operating costs.

2. Maintenance: Like any other watercraft, these models require regular maintenance to keep them in good working condition. This can include tasks such as oil changes, filter replacements, and engine tune-ups.

3. Price: New models of these waverunners can be quite expensive. However, you can find used models in good condition at more affordable prices.

4. Weight: These waverunners are quite heavy, weighing in at around 1,100 pounds (GP800) and 1,135 pounds (GP760). This can make transporting them to and from the water challenging, especially for those without a trailer.

The Yamaha GP800 and GP760 waverunners offer excellent performance, handling, and versatility, making them great choices for intermediate riders looking for a fun and exciting watercraft experience. However, they require regular maintenance, consume a significant amount of fuel, and can be quite heavy, which can add to their operating costs and transportation challenges. Ultimately, if you are willing to accept these limitations, you will be rewarded with a powerful, reliable, and enjoyable watercraft.

If you are in the market for a used intermediate waverunner and have a budget of around $3,000 to $5,000, the Yamaha GP800 and GP760 models are definitely worth considering. Look for models that have been well-maintained and have a clean title. Make sure to test ride the watercraft before purchasing to ensure that it is in good working condition and meets your needs and preferences.

Details:

It is designed for personal watercraft engines and manufactured by Yamaha with the part number 66E-9001-00. The product is an oem midshaft assembly for Yamaha waverunner GP800 and GP760 model's from 1997 -2000. This intermediate midshaft is a crucial component for the optimal performance of these specific Yamaha waverunner model's.

specifications watercraftimp:

• for models: Gp800, Gp760
• for years: 1997–2000
• brand: Yamaha
• mpn: 66e-9001-00

returns watercraftimp:

• policy: returns accepted
• time: 30 days
• paid by: seller

payments watercraftimp:

• other
• wallet: paypal
• credit card: visa

shipping watercraftimp:

• carrier: usps, ups, fedex
• type: calculated
• class: expedited, one-day
• transit: 3-8 days
• service: usps priority mail, ups next day air, fedex priority overnight

seller watercraftimp:

• rating: 99.3%
• city: marinette, wisconsin
• # reviews: 4817

offer watercraftimp:

• best offers: true
• options: ship-to-home
• sold #: 15
• price: $106.25
• item condition: Used
• in stock #: 1
• started: december 9, 2025
• availability: in stock

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components