74-402D-02 SBT Coupler Shaft Sj Yamaha Superjet

Review SBT Yamaha Coupler Shaft 701 Mid Sj Rn for YAMAHA SUPERJET 1994–2018

The SBT 74-402D-02 Yamaha Coupler Shaft Superjet 701, model number 6R7-51323-02-00, is a critical component for the proper functioning of Yanmar 6-cylinder marine engines produced between 1994 and 2018, specifically the Superjet 701 series. This shaft is an essential part of the engine's water cooling system, responsible for connecting the engine's water pump and the engine itself.

Measuring approximately 23.6 inches (600 mm) in length and 1.3 inches (33.6 mm) in diameter, this coupler shaft is meticulously crafted from high-strength materials to ensure durability and reliability under heavy marine use. Its robust construction is essential, as the shaft must withstand the constant pressure and stress of the cooling water as it circulates throughout the engine.

The SBT 74-402D-02 Yamaha Coupler Shaft Superjet 701 features a unique design with a tapered, splined coupling on both ends. These couplings enable the shaft to securely attach to the engine's water pump and crankshaft, providing a firm connection that minimizes vibrations and ensures efficient water circulation.

This shaft is also equipped with a reinforced, ribbed design that enhances its structural integrity and resists the corrosive effects of seawater. Its smooth, polished finish not only adds an aesthetic appeal but also minimizes turbulence and the potential for water accumulation, ensuring optimal engine performance.

The SBT 74-402D-02 Yamaha Coupler Shaft Superjet 701 is an essential replacement part for marine engine owners. Its precise fit and engineering ensure a seamless installation process, allowing you to quickly get back on the water with confidence. Regular maintenance and timely replacement of this component can help prolong the lifespan of your engine and prevent costly repairs down the line.

Pros and Cons of Buying Yamaha Superjet 701 Coupler Shaft (SBT 74-402D-02)

The Yamaha Superjet 701 is a popular watercraft model known for its performance and durability. The SBT 74-402D-02 coupler shaft is an essential component of this watercraft, connecting the impeller to the engine. In this analysis, we will discuss the pros and cons of buying this specific coupler shaft model.

1. Durability: The Yamaha SBT 74-402D-02 coupler shaft is made of high-quality materials, designed to withstand the rigors of continuous use in a marine environment.

2. Compatibility: This coupler shaft is specifically designed for Yamaha Superjet 701 models from 1994 to 2018, ensuring a perfect fit and optimal performance.

3. Efficient Water Flow: The coupler shaft's design facilitates efficient water flow, which is crucial for maintaining the watercraft's performance and fuel economy.

4. Easy Installation: The replacement process for this coupler shaft is relatively straightforward, allowing for a quick and hassle-free installation.

1. Cost: Compared to some aftermarket alternatives, the Yamaha OEM coupler shaft can be more expensive.

2. Availability: Depending on the location and retailer, it may be challenging to find this specific part in stock.

3. Wear and Tear: Like any other component in a watercraft, the coupler shaft is subject to wear and tear, which may require periodic replacement.

The Yamaha SBT 74-402D-02 coupler shaft is an essential investment for anyone owning a Yamaha Superjet 701 watercraft. Its durability, compatibility, efficient water flow, and easy installation make it a worthwhile purchase, despite its higher cost and occasional availability concerns.

If you own a Yamaha Superjet 701 and need to replace your coupler shaft, it is highly recommended to purchase the genuine Yamaha SBT 74-402D-02 part to ensure optimal performance, compatibility, and longevity. While the cost may be higher than some aftermarket alternatives, the peace of mind and confidence in the part's quality are well worth the investment.

Details:

Applications: 2017 super jet 701 coupler shaft 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1993 1992 650 1991 1990 Sbt drive shafts, coupler and impeller shafts provide the solution for getting your driveling back on-line. If your PC has broken splines, bent shafts, or vibrations, Sbt offers high quality stainless steel drive coupler and impeller shafts to get ski back out on the water.

specifications watercraftimp:

• for models: Superjet
• for makes: Yamaha
• for years: 1994–2018
• brand: Sbt
• mpn: 74-402d-02
• part type: Shaft

payments watercraftimp:

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

shipping watercraftimp:

• transit: 3-6 days
• type: fixed
• service: usps priority mail
• carrier: usps
• class: expedited

offer watercraftimp:

• prices: $129.95–$154.99
• item condition: New
• availability: in stock
• started: july 25, 2025
• options: ship-to-home
• sold #: 19

seller watercraftimp:

• city: pass christian, mississippi
• rating: 99.7%
• # reviews: 9606

returns watercraftimp:

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

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components