Yamaha 660 Top End Piston Kit 99.95mm (Grizzly 660 / Rhino 660) – Vertex 0910-3848

🛠️ Description

Restore compression and reliability to your Yamaha 660 engine with this Vertex 99.95 mm cast replica top end piston kit. Designed to match OEM specifications, this kit includes everything you need for a complete top end refresh — piston, rings, gaskets, and cam chain. Perfect for Grizzly 660 and Rhino 660 rebuilds.

✅ What’s Included

• Vertex cast replica piston (99.95 mm)

• Piston rings

• Wrist pin & circlips

• Top end gasket kit

• Ignition cover gasket

• Cam chain

📦 Fitment

• 2002–2004 Yamaha YFM660F Grizzly 4x4

• 2004–2007 Yamaha YXR66F Rhino 660

🛡️ Warranty Info

Vertex top end kits are covered by a manufacturer’s warranty against defects in materials and workmanship. Correct installation is required.

🔑 Key Features

• Cast replica piston with OEM dimensions

• Gravity-cast aluminum alloy piston (18% silicone content)

• Heat-treated with T-5 hardening and tempering cycle

• Skirt coated with Molybdenum Disulphite for faster break-in and longer piston life

• Includes gaskets and cam chain for a complete top end refresh

• Compression ratio: 9.1:1 (stock replacement)

💲 Price Match Guarantee

If you find this kit cheaper at an authorized dealer, we’ll match it. Shop confidently at DuneGoonShop.com knowing you’re always getting the best value.