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 for longer service life.
• Re-Machined Cylinder Head – Decked, shimmed, and leak-down tested for a precision seal.
• Heat-Resistant Valve Stem Seals – 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 consistent lubrication and reliability.
• Precision-Machined Engine Cases – Inspected and tested for cracks, wear, and overall strength.
• Complete Gasket & Seal Kit – Everything you need for proper installation.

Warranty Coverage

Your Yamaha 252 FSH Sport 1800 engine rebuild includes our 1-Year Warranty. Want added confidence? Upgrade to our Platinum 2-Year No-Fault Warranty for unmatched protection on the water.

Rebuilt the Right Way

At REV6, we don’t just repair — we completely remanufacture. Every engine is torn down, inspected, and precision-machined to eliminate OEM weaknesses. The result? A stronger, longer-lasting rebuild that keeps your Yamaha running season after season.

Build Core Engine – What to Expect

This Yamaha 252 FSH Sport 1800 is a Build Core Engine. That means we require a rebuildable core as the starting point. Once received, our technicians upgrade and machine it to strict standards before shipping it back ready to install.

Not sure if your core qualifies? Visit our Help Center or contact us for guidance before placing your order.

Take Action

Trust REV6 to deliver power, reliability, and unmatched quality for your Yamaha jet boat. Review our FAQ, check our Engine Rebuild Kit Guide, or reach out to our team for more details. Every order includes nationwide shipping.

Thank you for choosing REV6 — we take pride in earning your trust and building engines that go the distance.