Description

Premium Features & Upgrades

• Upgraded Forged Crankshaft Assembly – Enhanced oil flow and strength for long-term durability.
• Brand-New Cylinder Assembly – OEM-level fit ensures smooth and reliable performance.
• Forged Nitride Valves – Designed for high-RPM reliability with reduced wear.
• Manganese Bronze Valve Guides – Outlast traditional steel, delivering longer service life.
• CNC-Machined Cylinder Head – Decked, shimmed, and leak-down tested for a precision seal.
• Heat-Resistant Valve Stem Seals – Built to withstand extreme heat without hardening or leaking.
• Factory-Spec Camshafts – Keep timing dialed in for peak, consistent performance.
• Upgraded Main & Balance Shaft Bearings – Engineered for smoother, longer-lasting operation.
• Heavy-Duty Timing & Oil Pump Chains – Extra strength where it counts the most.
• Complete Oil Pump Assembly & Chain Tensioner – Guarantees reliable lubrication and durability.
• Precision-Machined Engine Cases – Inspected and tested for cracks, wear, and long-term strength.
• Complete Gasket & Seal Kit – All components included for a proper installation.

Warranty Coverage

Your Yamaha 242 S E-Series 1800 engine rebuild includes our 1-Year Warranty. Want even more protection? Upgrade to our 2-Year No-Fault Warranty for unmatched peace of mind.

Rebuilt the Right Way

Every REV6 rebuild goes far beyond a standard repair. Our technicians fully disassemble, inspect, and machine each component to meet or exceed OEM standards. The result is a stronger, longer-lasting engine you can trust on the water.

Build Core Engine – What to Expect

This Yamaha 242 S E-Series 1800 is a Build Core Engine. That means we require a rebuildable core as the foundation. We tear it down, upgrade it with premium components, and ship it back ready to run.

If you’re not sure about your core’s eligibility, check our Help Center or contact us before placing your order.

Take Action

Give your Yamaha 242 S E-Series the power and reliability it deserves with a REV6 rebuild. Review our FAQ, read the Engine Rebuild Kit Guide, or reach out to our team for details. Every order includes nationwide shipping.

Thanks for trusting REV6 with your engine rebuild — we’re proud to keep riders and boaters running stronger, season after season.