Description

Yamaha 255 FSH Sport H 1800 Jet Boat Engine Build Core 2024–2025

The Yamaha 255 FSH Sport H is built for strength and versatility on the water. When the engine starts to wear out, REV6 provides a better option. Our 255 FSH Sport H 1800 Jet Boat engine build core for 2024–2025 models is fully remanufactured with upgraded parts. Furthermore, each engine is tested for reliability and backed by proven warranty protection. As a result, you get an engine that performs as good—or better—than new.

Premium Features & Upgrades

To guarantee performance, we disassemble, machine, and rebuild each engine core from the ground up. Because of this process, every build gains strength and long-term reliability. In addition, you benefit from these included features:

• • Upgraded Forged Crankshaft Assembly – Improves oil flow and durability

• Brand-New Cylinder Assembly – OEM compatibility for smooth operation
• High-Strength Forged Nitride Valves – Designed to resist wear at high RPMs
• Manganese Bronze Valve Guides – Longer lifespan with reduced oil use
• Fully Rebuilt & Machined Cylinder Head – Decked, shimmed, and leak-tested
• Heat-Resistant Valve Stem Seals – Built to withstand extreme heat
• Factory-Spec Camshafts – Ensures correct timing and efficiency
• Upgraded Main & Balance Shaft Bearings – Added strength for long-term use
• Heavy-Duty Timing & Oil Pump Chains – Stronger components for smooth operation
• Complete Oil Pump Assembly & Chain Tensioner – Keeps lubrication at peak levels
• Thoroughly Inspected & Machined Engine Cases – Verified free of cracks and major wear

🔧 In addition, every engine build comes with all gaskets and seals required for installation.

Build Core Engine – Important Details

This listing is for a Build Core Engine. It is not a ready-to-install motor. Our team requires a complete, rebuildable core to remanufacture. For this reason, your core must be intact, free of major cracks, and without missing components.

Meanwhile, you can review our Help Center to learn about shipping procedures and acceptable core guidelines.

Warranty Protection

Every REV6 engine is protected with solid warranty coverage:

• 🛠 1-Year Warranty Included – Confidence standard with every build
• 🛠 2-Year No-Fault Warranty Option – Add for $450 and receive full replacement coverage, no questions asked

For example, you can review full coverage details anytime in our warranty policy.

Expert Quality Control

Our skilled technicians assemble each engine, and another expert inspects the work before shipping. In fact, this double-check process ensures accuracy and reliability. With over 50 years of combined powersports experience, the REV6 team delivers engines that last. Finally, you can order with confidence knowing your build has been tested and verified.

Need help understanding rebuild options? Start with our Engine Rebuild Kit Guide.

Still have questions? Browse our FAQ page or contact us directly for support.