Yamaha 660 Top End Piston Kit 99.95mm - Vertex 0910-3848 (2002-2007)
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
- Secure checkout — Pay in 4 available
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.
✓ Fits:
- 2002-2004 Yamaha YFM660F Grizzly 4x4
- 2004-2007 Yamaha YXR66F Rhino 660
✓ 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)
✓ What's Included:
- Vertex cast replica piston (99.95 mm)
- Piston rings
- Wrist pin & circlips
- Top end gasket kit
- Ignition cover gasket
- Cam chain
Ships fast from DuneGoonShop!
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
