Description

Premium Features & Upgrades

• Upgraded Forged Crankshaft Assembly – Improved oil flow and added strength for dependable durability.
• Brand-New Cylinder Assembly – OEM-level fit ensures smooth, consistent performance.
• Forged Nitride Valves – Built for high-RPM reliability with reduced wear.
• Manganese Bronze Valve Guides – Outlast standard steel for longer service life.
• CNC-Machined Cylinder Head – Decked, shimmed, and leak-down tested for a precision seal.
• Heat-Resistant Valve Stem Seals – Handle extreme heat without hardening or leaking.
• Factory-Spec Camshafts – Keep timing locked in for peak performance.
• Upgraded Main & Balance Shaft Bearings – Designed for smoother, longer-lasting operation.
• Heavy-Duty Timing & Oil Pump Chains – Extra strength where it counts most.
• Complete Oil Pump Assembly & Chain Tensioner – Provides reliable lubrication and durability.
• Precision-Machined Engine Cases – Inspected and tested for cracks, wear, and strength.

Warranty Coverage

Every Yamaha 252SD 1800 engine includes our trusted 1-Year Warranty. For longer protection, upgrade to the Platinum 2-Year No-Fault Warranty for total peace of mind on the water.

Rebuilt with Precision

At REV6, every rebuild begins with a full teardown, inspection, and precision machining process. We don’t just replace worn parts—we upgrade weak points so your Yamaha 252SD runs stronger, smoother, and lasts longer than stock.

Build Core Engine Details

This Yamaha 252SD 1800 is sold as a Build Core Engine. You’ll need to send us a rebuildable core, which our team machines, upgrades, and assembles to REV6 standards before shipping it back ready to install.

Not sure about your core? Visit our Help Center or contact us for guidance before ordering.

Take Action

Ready to get back on the water? Review our FAQ, check out the Engine Rebuild Kit Guide, or reach out directly. Every REV6 order ships nationwide and is backed by unmatched warranty protection.

Thank you for trusting REV6 with your Yamaha rebuild. We treat every engine like it’s powering our own ride, and that’s a promise you can rely on.