Description

2002-2005 Yamaha Raptor 660R Big Bore Top End Rebuild Kit

This Yamaha Raptor 660R Big Bore Complete Top End Rebuild Kit gives you the replacement parts needed when your top end is worn and you want more than a stock rebuild. With a new cylinder, top end gasket kit, and 102mm +2mm big bore piston kit, this package is built for riders who want to freshen things up and add more bite at the same time.

It is a strong fit for mechanics, riders, and shops working on 2002-2005 Yamaha Raptor 660R engines. REV6 also backs this kit with a 1-year warranty and offers nationwide shipping.

What This Kit Includes

• Cylinder
• Top End Gasket Kit
• Big Bore Piston Kit 102 mm +2 MM

Technical Support & Build Guidance

If you are comparing rebuild options before you buy, check out our engine rebuild kit guide. It helps break down kit types, so you can choose the right setup for your build and your budget.

Because this kit includes a piston kit, our piston and ring installation guide is another smart resource to keep nearby during assembly. If you need help confirming fitment or planning the rest of the build, visit the Help Center or contact the REV6 team.

Warranty & Support

REV6 backs this rebuild kit with a 1-year warranty on parts. For full coverage details, read our warranty policy.

Fitment

This kit fits 2002-2005 Yamaha Raptor 660R models.

Take Action

If your Raptor 660R top end is due for fresh parts and you want the added pull of a big-bore setup, this kit is ready to get to work. Pick up this REV6 big bore top end kit today and keep your project moving.