Description

The Yamaha YFZ 450 Complete Top End Rebuild Kit is built for restoring compression, reliability, and throttle response on worn or tired engines. It’s a solid choice when a top-end refresh is needed.

Every component meets REV6 quality standards and is backed by a 1-year parts warranty. This kit is designed to install cleanly and keep your build moving forward without guesswork.

THIS KIT INCLUDES

• Cylinder
• Forged piston kit (11.4:1 stock ratio)
• Top-end gasket set

LEARN MORE & GET SUPPORT

Learn about coverage details on our warranty policy page, get rebuild insight from the REV6 blog, browse common questions in the FAQ center, or contact our team directly for build guidance.

FITMENT

Yamaha YFZ 450
2006–2009

TAKE ACTION
If your top end is showing wear, this kit is ready to put it back in shape. Built to last, backed by REV6, and shipped nationwide—add it to your cart and get your rebuild started.

Veterans and servicemembers qualify for exclusive REV6 savings—thank you for your service.