Description

Premium Features & Upgrades

• • Upgraded Forged Crankshaft Assembly – Improved oil flow and strength for long-term durability.
  • Brand-New Cylinder Assembly – OEM-level fit ensures smooth and reliable operation.
  • Forged Nitride Valves – Built for high-RPM performance with less wear.
  • Manganese Bronze Valve Guides – Outlast traditional steel guides, reducing oil consumption.
  • Re-machined Cylinder Head – Decked, shimmed, and leak-down tested for a perfect seal.
  • Heat-Resistant Valve Stem Seals – Stand up to extreme heat without hardening or leaking.
  • Factory-Spec Camshafts – Keep timing dialed in for consistent performance.
  • Upgraded Main & Balance Shaft Bearings – Built for smoother and longer-lasting operation.
  • Heavy-Duty Timing & Oil Pump Chains – Added strength where it matters most.

• Complete Oil Pump Assembly & Chain Tensioner – Ensures reliable lubrication and performance.
• Precision-Machined Engine Cases – Inspected and tested for cracks, wear, and strength.
• Complete Gasket & Seal Kit – Everything you need for proper installation.

Warranty Coverage

Each Yamaha 242 S 1800 engine rebuild comes with our 1-Year Warranty as standard protection. You can also upgrade to our 2-Year No-Fault Warranty for maximum peace of mind.

Rebuilt the Right Way

At REV6, every engine is stripped down, carefully machined, and rebuilt using premium new and refurbished parts. With decades of combined experience, our master technicians follow strict procedures that go beyond OEM standards, ensuring you get a stronger, more reliable engine.

Build Core Engine – What to Expect

This Yamaha 242 S 1800 is a Build Core Engine. That means a solid, rebuildable core is required to serve as the foundation of your remanufactured engine. Your core is torn down, rebuilt, and upgraded before being shipped back to you.

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

Take Action

Bring your Yamaha 242 S back to life with a precision REV6 rebuild. Review our FAQ, check out the Engine Rebuild Kit Guide, or contact us with questions. Nationwide shipping is included with every engine.

We truly appreciate you trusting REV6 with your rebuild — it’s riders and boaters like you who keep us pushing the limits of what a rebuilt engine can be.