74-402B-02 SBT Coupler Shaft Yamaha

Review SBT Coupler Shaft Compatible Yamaha Fx1 for YAMAHA

The SBT 74-402B-02 coupler shaft is an essential component for Yamaha's FX1 WaveRunner model with the part number 61L-51323-01-00. This shaft is designed to connect the impeller and the pump housing, allowing water to be drawn into the pump and creating the necessary thrust for the watercraft to move through the water.

The shaft is made of high-quality materials, ensuring durability and resistance to corrosion, making it ideal for use in marine environments. The SBT 74-402B-02 coupler shaft features a precision-machined fit, ensuring a secure and stable connection between the impeller and the pump housing.

The shaft's dimensions are as follows: the length is approximately 22.2 inches (56.4 cm), the outer diameter is around 1.2 inches (3.0 cm), and the inner diameter is approximately 0.9 inches (2.3 cm). The shaft also comes with a gasket to ensure a tight seal between the impeller and the pump housing, preventing water leakage.

This particular shaft is designed for use with the Yamaha FX1 model, and it is an exact replacement for the original part. Installing the SBT 74-402B-02 coupler shaft is a straightforward process, and it comes with clear installation instructions to ensure a hassle-free experience.

In summary, the SBT 74-402B-02 coupler shaft is a high-quality replacement part designed for the Yamaha FX1 WaveRunner model. Its precision-machined fit, durability, and resistance to corrosion make it an excellent choice for those looking to maintain their watercraft's performance and reliability.

Pros and Cons of Buying a SBT 74-402B-02 Coupler Shaft for Yamaha FX1

The SBT 74-402B-02 coupler shaft is a replacement part designed for Yamaha FX1 outboard motors. This component connects the lower unit to the engine and plays a crucial role in the functionality and efficiency of the outboard motor. In this article, we will discuss the benefits and drawbacks of purchasing this part.

1. Improved Performance: Replacing a worn-out or damaged coupler shaft can lead to enhanced performance, as it ensures proper connection and power transfer between the engine and the lower unit.

2. Cost-Effective: The cost of a new SBT 74-402B-02 coupler shaft is significantly lower than purchasing a new outboard motor, making it a more cost-effective solution for boat owners who want to keep their existing motor in good working order.

3. OEM Quality: This OEM (Original Equipment Manufacturer) part is specifically designed and manufactured for Yamaha FX1 outboard motors, ensuring a perfect fit and optimal performance.

1. Cost: Although the cost of a new coupler shaft is generally lower than the cost of a new outboard motor, it can still be an expense for some boat owners, especially if they encounter frequent failures or wear.

2. Installation Complexity: Installing a new coupler shaft can be a challenging task, as it requires disassembling the lower unit and the engine, which may require specialized tools and expertise.

3. Potential Downtime: Replacing a coupler shaft can result in downtime, as the boat may be out of commission during the installation process.

The SBT 74-402B-02 coupler shaft for Yamaha FX1 outboard motors offers several benefits, including improved performance, cost-effectiveness, and OEM quality. However, it also comes with some drawbacks, such as installation complexity and potential downtime. Therefore, boat owners should weigh the pros and cons carefully before making a decision to purchase this replacement part.

If your Yamaha FX1 outboard motor's coupler shaft is worn or damaged, it is essential to replace it promptly to maintain optimal performance and ensure the longevity of the motor. Before making a purchase, consider the installation complexity and potential downtime, and determine if the benefits outweigh the costs for your specific situation. If you are unsure about the installation process or have limited experience with boat maintenance, it may be best to consult a professional mechanic or authorized dealer for assistance.

Details:

Fitment: 1994 Yamaha fx1. 1995 Yamaha fx1. Sbt coupler shaft compatible with Yamaha 61L-51323-01-00 fx1: details: new shaft application guide: fx1 1994 - 1995.

specifications watercraftimp:

• for makes: Yamaha
• brand: Sbt
• mpn: 74-402b-02
• part type: Shaft

returns watercraftimp:

• time: 60 days
• paid by: seller
• policy: returns accepted

seller watercraftimp:

• rating: 99.9%
• # reviews: 33312
• city: clearwater, fl

payments watercraftimp:

• other
• credit card: visa
• wallet: google-pay

offer watercraftimp:

• availability: in stock
• options: ship-to-home
• sold #: 14
• started: december 25, 2025
• prices: $121.95–$127.08
• item condition: New
• in stock #: 5

shipping watercraftimp:

• type: fixed
• class: standard, expedited, one-day
• carrier: fedex
• transit: 4-6 days
• service: standard, fedex 2day, fedex standard overnight

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components