Description

Yamaha AR 240 HO Engine Rebuild | Get Back on the Water

High-quality parts. Expert craftsmanship. Proven reliability.

Don’t take chances with subpar engine replacements. Choose a build that’s engineered for longevity, performance, and confidence on the water. At REV6, we remanufacture every Yamaha AR 240 HO engine to meet or exceed OEM specs—and we back it up with an industry-leading warranty.

Premium Components & Upgrades

Each engine undergoes full disassembly, cleaning, machining, and professional assembly with upgraded and precision-fit parts:

• Upgraded Forged Crankshaft Assembly – Enhanced oil flow and superior strength
• Brand-New Cylinder Assembly – Perfect fit and OEM-level reliability
• High-Strength Forged Nitride Valves – Built to perform at high RPMs with less wear
• Manganese Bronze Valve Guides – Longer-lasting than standard steel, reduces oil burn
• Fully Rebuilt & Machined Cylinder Head – Decked, shimmed, and leak-down tested for optimal sealing
• Heat-Resistant Valve Stem Seals – Withstands high temps without hardening
• Factory-Spec Camshafts – Ensures proper timing and maximum efficiency
• Upgraded Main & Balance Shaft Bearings – Engineered for long-term durability
• Heavy-Duty Timing & Oil Pump Chains – Designed to handle the demands of marine use
• Complete Oil Pump Assembly & Chain Tensioner – Keeps internal components running smoothly
• Thoroughly Inspected & Machined Engine Cases – Checked for cracks, wear, and true alignment

Model Compatibility

• Fits: Yamaha AR 240 HO 1800 Jet Boat (2013–2015)

Backed by Our Industry-Leading Warranty

• 1-Year Warranty Included – Confidence built into every engine
• 2-Year No-Fault Warranty Upgrade – Available for $450; no questions asked coverage

Built for Reliability. Tested by Experts.

Our quality control process is thorough. Each engine is assembled by one master tech and inspected by another—because your engine deserves more than just a basic rebuild.

• Double Technician Quality Check
• 50+ Years Combined Powersports Engine Expertise

Build Core Engine Requirement

This product is classified as a Build Core Engine. It is not a drop-in engine. We remanufacture your supplied core to deliver this engine build.

To ensure performance and rebuild success, we require a complete, rebuildable core—free of major cracks, excessive wear, or missing components.

If you’re unsure whether your core qualifies, visit our Core Program for core and shipping details.