Description

Yamaha Raptor 660R Big Bore Engine Rebuild Kit

Rebuild and upgrade your 2002-2005 Yamaha Raptor 660R engine with this Big Bore Engine Rebuild Kit from REV6. Designed for engines that need a new cylinder and piston, this kit combines the major wear components needed for a dependable rebuild while adding the performance benefits of a big bore upgrade.

Replacing the cylinder, +4mm piston kit, crankshaft bearing, cam chain, gaskets, seals, and water pump components together helps simplify your rebuild and reduces the time spent sourcing individual parts. As a result, you can restore reliability while increasing engine displacement in one complete package.

When This Big Bore Engine Rebuild Kit Is the Right Choice

Choose this kit when your cylinder and piston require replacement, but your existing crankshaft and valves remain serviceable. However, if your rebuild also requires a new crankshaft, the Yamaha Raptor 660R Big Bore Complete Engine Rebuild Kit is the better choice.

What This Kit Includes

• Big Bore Cylinder (1)
• Cam Chain (1)
• +4mm Big Bore Piston Kit (1)
• Crankshaft Bearing (1)
• Complete Gasket Kit (1)
• Water Pump Rebuild Kit (1)
• Oil Seal Set (1)

Compatible Yamaha Models

• 2002-2005 Yamaha Raptor 660R

Need help choosing the right rebuild kit? Contact REV6. Our experienced team is ready to help.

Continue Your Yamaha Raptor 660R Engine Build

Reusing your cylinder and piston? Compare the Yamaha Raptor 660R Engine Refresh Kit.

Replacing the crankshaft as well? View the Yamaha Raptor 660R Big Bore Complete Engine Rebuild Kit.

Need our most complete engine package? See the Yamaha Raptor 660R BIG BORE Master Engine Rebuild Kit.

Every REV6 replacement part ships nationwide and is backed by our 1-year warranty, giving you confidence every time you rebuild.