Description

Yamaha Raptor 660R Big Bore Complete Engine Rebuild Kit

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

Replacing the crankshaft, big bore cylinder, +4mm piston kit, cam chain, crankshaft bearing, gaskets, seals, and water pump components together simplifies your rebuild and helps ensure the major engine components work together as intended. Additionally, purchasing one complete kit saves time and eliminates the hassle of sourcing parts individually.

When This Complete Engine Rebuild Kit Is the Right Choice

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

What This Kit Includes

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

Compatible Yamaha Models

• 2002-2005 Yamaha Raptor 660R

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

Continue Your Yamaha Raptor 660R Engine Build

Reusing your existing crankshaft? Compare the Yamaha Raptor 660R Big Bore Engine Rebuild Kit.

Need our most complete engine package with new valves? View the Yamaha Raptor 660R Big Bore Master Engine Rebuild Kit.

Looking for additional parts and rebuild options? Browse our Yamaha Raptor 660R engine parts and rebuild kits.

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