Kawasaki KX250F Piston Set - Wiseco - 13.71 CR - '17-'18. A direct-fit forged piston kit engineered for the KX250F 2017–2018 models, offering a reliable replacement or upgrade for riders focused on engine durability and consistent performance.

This Wiseco piston set is designed and machined in the USA (Mentor, OH) for precise fitment to the KX250F. Constructed from dedicated forged material, the pistons provide improved tensile strength and a tailored strength-to-weight ratio for 4-stroke powersports engines. The kit includes high-quality piston rings, wrist pin(s), and circlips for a complete installation, and is matched to a 77.00 mm bore with a 13.71:1 compression ratio. The component tolerances and application-specific design make this kit appropriate for stock rebuilds and performance-focused builds where dependable, factory-compatible parts are required.

Features

• Forged 4-stroke piston specifically for Kawasaki KX250F ('17-'18)
• 13.71:1 compression ratio, 77.00 mm bore
• Includes piston rings, wrist pin(s), and circlips
• Engineered and machined in the USA (Mentor, OH)
• Dedicated forging for improved strength-to-weight characteristics

If you have questions or want help confirming fitment, call us — we’re happy to assist. We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. Call us at 512-982-9393 (TX) or 562-981-6800 (CA) to discuss your build or to schedule service. If you are thinking about purchasing 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