Description

Quality components. Precision builds. Reliable performance.

When it’s time to replace your engine, don’t settle for less. REV6 delivers precision-built engines that outperform stock with upgraded components designed for durability. Every Yamaha 275SD engine is fully inspected, machined, and tested to exceed OEM standards.

Premium Features & Upgrades

• Upgraded Forged Crankshaft Assembly – Enhanced oil flow, strength, and long-lasting durability.
• Brand-New Cylinder Assembly – OEM-compatible and engineered for smooth operation.
• High-Strength Forged Nitride Valves – Withstands high RPMs while reducing wear.
• Manganese Bronze Valve Guides – Outperforms standard steel guides and reduces oil use.
• Fully Rebuilt & Machined Cylinder Head – Decked, shimmed, and leak-down tested for a tight seal.
• Heat-Resistant Valve Stem Seals – Built to handle extreme heat without hardening.
• Factory-Spec Camshafts – Maintains proper timing and efficiency.
• Upgraded Main & Balance Shaft Bearings – Engineered for long-term reliability.
• Heavy-Duty Timing & Oil Pump Chains – Reinforced for dependable performance.
• Complete Oil Pump Assembly & Chain Tensioner – Ensures consistent lubrication.
• Inspected & Machined Engine Cases – Crack-tested for structural integrity.

Includes all required gaskets and seals for installation.

Compatible Models

This engine fits the Yamaha 275SD 1800 Jet Boat, years 2019–2025.

Warranty Coverage

• 1-Year Warranty – Included standard with every build.
• 2-Year No-Fault Warranty Upgrade ($450) – Total replacement coverage, no questions asked.

Built for Reliability

Every REV6 engine goes through double quality checks—assembled by one expert technician and inspected by another. With over 50 years of combined powersports experience, our process ensures consistent reliability and performance.

Build Core Engine – Important Notice

This listing is for a Build Core Engine. It is not ready to install out of the box. A good, rebuildable core is required as the foundation for remanufacturing.

A core engine undergoes disassembly, machining, and rebuilding with new or remanufactured components. The final quality depends directly on the condition of your core.

Cores must be complete, free of cracks, and without severe damage. If you’re unsure about your core’s eligibility, contact our team before ordering. You can also review additional information in our Help Center.

Take Action Today

Upgrade your Yamaha 275SD 1800 jet boat with a precision remanufactured engine backed by our warranty policy. For common questions, see our FAQ page, or reach out directly. Need help choosing parts? Visit our Engine Rebuild Kit Guide for more details.