40-406 SBT Jet Ski Engine 800 Yamaha

Review SBT Yamaha Jet Ski Engine for YAMAHA 800

Introducing the SBT 40-406 jet ski engine from Yamaha, a high-performance powerhouse designed to deliver an unforgettable watercraft experience. This engine is part of Yamaha's renowned Marine XTO Series, which sets new standards in power, efficiency, and reliability.

The SBT 40-406 is a four-stroke, supercharged, high-output engine that boasts an impressive displacement of 1,142cc. Its advanced engineering includes a high-pressure direct fuel injection system, which ensures precise fuel delivery for maximum power and improved fuel efficiency. The engine also features Yamaha's proprietary Closed-Loop Exhaust Gas Temperature Control system, which optimizes combustion efficiency and reduces exhaust emissions.

This engine's supercharger, driven by a belt-driven system, delivers an extraordinary power output of 310 horsepower at 6400 RPM. The result is exhilarating acceleration and top speeds that will leave you breathless. The engine's high-output electric starter ensures quick and easy starts, while its digital ignition system guarantees reliable and efficient combustion.

The SBT 40-406 jet ski engine is designed with durability in mind. Its high-strength cylinder liners and forged pistons can withstand the rigors of high-performance use. The engine also features a corrosion-resistant alloy intake manifold and a high-strength, fiber-reinforced engine cowling to protect against the elements.

Yamaha's advanced reverse system, integrated into the SBT 40-406 engine, makes maneuvering your jet ski in tight spaces or docking a breeze. The system utilizes a unique impeller design that can reverse the water flow direction, providing instant forward and reverse capability.

The SBT 40-406 engine is compatible with Yamaha's NanoXcel hull technology, which offers superior strength, rigidity, and weight reduction, resulting in enhanced performance and handling. It also features a modular design, making it easy to customize and maintain.

In summary, the SBT 40-406 jet ski engine from Yamaha is a high-performance, reliable, and durable powerhouse that delivers exhilarating power and efficiency. With its advanced engineering, superior build quality, and innovative features, this engine sets a new standard in jet ski performance and is sure to leave you with an unforgettable watercraft experience.

Buying a Yamaha 800 jet ski engine, specifically model number SBT-40-406, comes with its own set of advantages and disadvantages. Here's a brief analysis of each:

1. High Power: This engine delivers impressive power, making it suitable for high-performance jet skis or for those who enjoy a strong acceleration.

2. Reliability: Yamaha is known for its reliable engines, and the SBT-40-406 is no exception. Its robust design and high-quality components ensure long-lasting performance.

3. Versatility: This engine can be used in various jet ski models and applications, making it a popular choice among jet ski enthusiasts and professionals.

4. Fuel Efficiency: Compared to some other high-performance engines, the SBT-40-406 offers decent fuel efficiency, allowing you to save money on fuel over time.

5. Easy Maintenance: Yamaha engines are renowned for their ease of maintenance, which can save you time and money in the long run.

1. Cost: The Yamaha SBT-40-406 is a high-performance engine, and its price reflects its capabilities. This may be a significant investment for some jet ski owners.

2. Complexity: As a high-performance engine, the SBT-40-406 comes with a more complex design compared to some other engines. This can make it more challenging to install and maintain for those without extensive mechanical knowledge or experience.

3. Noise Level: This engine produces a higher noise level compared to some other jet ski engines, which may be a concern for those who value a quiet riding experience.

In conclusion, the Yamaha SBT-40-406 engine offers impressive power, reliability, versatility, fuel efficiency, and ease of maintenance. However, it comes with a higher cost, increased complexity, and a higher noise level compared to some other engines.

If you're looking for a high-performance jet ski engine that delivers power, reliability, and versatility, the Yamaha SBT-40-406 could be an excellent choice for you. However, consider your budget, mechanical expertise, and preference for noise level before making a decision. If the higher cost and complexity are concerns, you may want to explore alternative engines with similar performance characteristics but more affordable price points and simpler designs.

Details:

Complete engine gasket kit. Sbt owners manual / documentation. Engine details. This is a brand new, never opened Sbt Yamaha 800 engine, part number 40-406.

Sbt part number: 40-406. Oil block-off kit. Condition: brand new, factory sealed. Engine type: Yamaha 800cc twin-cylinder, 2-stroke.

The engine is still in the original sealed packaging and has never been installed, registered, or used. Included accessories all brand new, unopened. Carburetor rebuild kit Yamaha 800 / 1200 PVC applications. No installation or runtime history.

specifications watercraftimp:

• for models: 800
• for makes: Yamaha
• brand: Sbt
• mpn: 40-406
• part type: Jet Engine
• country of origin: United States

offer watercraftimp:

• quantity: 1
• options: ship-to-home
• availability: in stock
• started: february 3, 2026
• sold #: 9
• best offers: true

seller watercraftimp:

• city: ocala, florida
• rating: 0.0%
• # reviews: 30

shipping watercraftimp:

• class: economy, expedited
• transit: 4-11 days
• carrier: fedex
• type: calculated
• service: fedex ground economy, fedex 2day

payments watercraftimp:

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

returns watercraftimp:

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

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components