Description

Premium Features & Upgrades

• Upgraded Forged Crankshaft Assembly – Built for strength and designed for improved oil flow.
• Brand-New Cylinder Assembly – Ensures OEM-level fit and smooth performance.
• Forged Nitride Valves – Dependable under high-RPM use with reduced wear.
• Manganese Bronze Valve Guides – Last longer than standard steel for greater durability.
• Re-machined Cylinder Head – Decked, shimmed, and leak-down tested for a reliable seal.
• Heat-Resistant Valve Stem Seals – Designed to withstand extreme heat without cracking.
• Factory-Spec Camshafts – Keep timing precise for consistent performance.
• Upgraded Main & Balance Shaft Bearings – Provide smoother operation and increased reliability.
• Heavy-Duty Timing & Oil Pump Chains – Reinforced for long-lasting strength.
• Complete Oil Pump Assembly & Chain Tensioner – Maintain consistent oil flow for peak protection.
• Precision-Machined Engine Cases – Inspected and tested for cracks, wear, and overall integrity.

Includes a complete gasket and seal kit for easy installation.

Compatibility

Fits Yamaha 242 LTD E-Series 1800 Jet Boat Engine – 2016 model year.

Warranty Coverage

All engines come with a 1-Year Premium Warranty included. For extended peace of mind, upgrade to our 2-Year No-Fault Warranty. At REV6, we back every build with the strongest coverage in the industry.

Rebuilt the Right Way

Every engine is hand-assembled by a master technician and then double-checked by another for precision. With over 50 years of combined expertise, the REV6 crew builds engines that not only match but outperform factory standards.

Build Core Engine – What to Expect

This listing is for a Build Core Engine. You’ll need a solid, rebuildable core to begin. Our team strips it down, machines it, and rebuilds it with premium new and upgraded components for unmatched durability.

If you’re unsure about core requirements, visit our Help Center or contact our team before ordering.

Take Action

Bring your Yamaha 242 LTD E-Series 1800 back to life with confidence. Review our FAQ or consult our Engine Rebuild Kit Guide for more details. Every REV6 engine ships nationwide for your convenience.

Thanks for trusting REV6 with your rebuild — we take pride in earning your confidence and delivering a stronger engine built to last.