Description

Yamaha FX SHO 1800 WaveRunner Engine

Need a new engine for your Yamaha FX SHO? We’ve got you covered with a remanufactured build that’s stronger than stock and made to perform.

This engine is a Build Core Engine that we rebuild using your supplied core. Each motor goes through a complete teardown, expert inspection, precision machining, and full reassembly using upgraded components. That means more reliability, more peace of mind, and more time on the water.

Whether you’re chasing speed or just want dependable weekends at the lake, this engine delivers long-lasting performance backed by real experience.

What’s Included in Your Engine Build

We don’t cut corners. Every engine includes high-quality parts and proven upgrades:

• Forged crankshaft assembly with improved oil flow and strength
• Brand-new cylinder assembly built for OEM compatibility
• High-strength forged nitride valves for durability at high RPMs
• Manganese bronze valve guides that reduce oil consumption
• Decked, shimmed, and leak-tested cylinder head for a perfect seal
• Heat-resistant valve stem seals that hold up under extreme temps
• Factory-spec camshafts for proper timing and smooth power
• Upgraded main and balance shaft bearings for lasting performance
• Heavy-duty timing and oil pump chains for steady operation
• Complete oil pump assembly and chain tensioner
• Machined and inspected engine cases checked for cracks and wear
• Gaskets and seals

Warranty Options

We back every engine with solid coverage so you can ride worry-free:

• 1-Year Warranty Included – Standard protection on all builds
• 2-Year No-Fault Warranty Upgrade ($450) – Full replacement, no questions asked

Read the full terms in our Warranty Policy.

Core Requirements for This Build

This listing is for a Build Core Engine, meaning you must send us a complete, rebuildable engine core. Your core must not have major cracks, excessive damage, or missing parts.

If you’re unsure about your core, visit our FAQ or Contact Us before you order. You can also learn more about shipping procedures and what to expect here.

Why Choose a REV6 Remanufactured Engine?

• Built by certified technicians with over 50 years of combined experience
• Every engine is assembled and inspected by two separate master techs
• Upgraded parts are tested under real-world marine conditions
• Trusted by WaveRunner riders, mechanics, and racers nationwide
• Fast shipping across the U.S., delivered straight to your shop or dock

Take Action Now

• Order Your FX SHO 1800 Engine Today
• Reach Out to Us with core or fitment questions
• Need help comparing kits? Read our Engine Rebuild Kit Guide