Description

Premium Features & Upgrades

• Upgraded Forged Crankshaft Assembly – Built for strength and improved oil flow, so your engine lasts longer.
• Brand-New Cylinder Assembly – Provides OEM-level fit with reliable, smooth operation right from the start.
• Forged Nitride Valves – Designed for high-RPM performance and reduced wear, which means longer engine life.
• Manganese Bronze Valve Guides – Outlast standard steel, giving you more hours on the water.
• Re-machined Cylinder Head – Our technicians deck, shim, and leak-down test each head to ensure a precise seal.
• Heat-Resistant Valve Stem Seals – Withstand extreme heat without breaking down, so reliability never slips.
• Factory-Spec Camshafts – Keep timing accurate, ensuring consistent peak performance.
• Upgraded Main & Balance Shaft Bearings – Engineered for smoother operation and longer-lasting durability.
• Heavy-Duty Timing & Oil Pump Chains – Deliver extra strength where it counts, especially under heavy load.
• Complete Oil Pump Assembly & Chain Tensioner – Maintain consistent lubrication for maximum reliability.
• Precision-Machined Engine Cases – Our team inspects and tests every case for cracks, wear, and strength before final assembly.

Compatibility

This rebuild fits Yamaha 242 LTD S E-Series 1800 Jet Boat Engines manufactured between 2016 and 2019.

Warranty Coverage

Every REV6 engine comes with a 1-Year Premium Warranty. Furthermore, you can upgrade to a 2-Year No-Fault Warranty for extra protection. Because of this, you’ll always have peace of mind knowing your investment is covered.

Rebuilt the Right Way

Our master technicians hand-assemble each engine. After that, a second expert double-checks the build for accuracy. As a result, your Yamaha engine benefits from over 50 years of combined powersports experience and quality control that outperforms stock designs.

Build Core Engine – What to Expect

This product is a Build Core Engine, which means you’ll need to send in a solid, rebuildable core. During the rebuild, we disassemble your core, machine critical surfaces, and reassemble it with premium new and upgraded parts. Therefore, you’ll get the performance and reliability you expect from a REV6 build.

If you’re unsure about the requirements, visit our Help Center or reach out to us before placing your order.

Take Action

Get your Yamaha 242 LTD S E-Series 1800 back on the water with confidence. Review our FAQ or check the Engine Rebuild Kit Guide if you’d like to compare other options. In addition, nationwide shipping is included on all REV6 engines.

We sincerely thank you for trusting us with your rebuild. Because of customers like you, we can continue doing what we love — building engines that go the distance.