Kawasaki KX450F Piston Kit - Wiseco - 121 CR - `06-`08 is a complete forged piston kit for the 2006–2008 KX450F. It provides a direct-fit, engine-specific replacement sized to a 96.00 mm bore with a 12:1 compression ratio.

Manufactured and machined in Mentor, Ohio, by Wiseco, this 4-stroke piston kit is engineered for the demands of powersports engines. The forged construction improves tensile strength and service life compared with cast pistons, while dedicated forgings help optimize the strength-to-weight ratio. The kit ships with high-quality piston rings, wrist pin(s), and circlips for a ready-to-install rebuild. This part is listed as the Wiseco Kawasaki KX450F 06-08 / KLX450R 08-19 121 CR piston kit and is intended as a precise replacement for compatible applications.

Features

• Forged 4-stroke piston engineered for specific engine fitment
• 96.00 mm bore and 12:1 compression ratio (121 CR)
• Includes piston rings, wrist pin(s), and circlips
• Improved tensile strength and optimized strength-to-weight ratio
• Engineered, forged, and machined in the USA (Mentor, OH)

If you have questions about fitment or installation, call us directly — we’re happy to help. We have two locations offering installation and customization services: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) to speak with a tech or schedule service. If you’re considering multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov