Kawasaki KX250F Piston Set - Wiseco - 79.00 mm Bore, 13.1:1 CR - `04-`09 is a forged replacement piston kit engineered for the KX250F model years 2004 through 2009. It provides a complete hardware package for rebuilds or engine refreshes.

This Wiseco piston set is built from forged material to resist high-stress conditions common to off-road and race use, while maintaining dimensional accuracy for reliable fitment. The kit includes piston, wrist pin, rings, and circlips so you have the components needed for installation. The 79.00 mm bore and 13.1:1 compression ratio match the specified sizing for boosted compression setups and stock rebuilds where this bore and CR are required. It’s a practical choice for riders and mechanics looking for a durable, OEM-compatible replacement.

Features

• Forged piston construction for strength and durability
• Complete kit: piston, wrist pin, piston rings, and circlips included
• 79.00 mm bore diameter
• 13.1:1 compression ratio
• Direct fit for Kawasaki KX250F 2004–2009

If you have questions or need fitment help, call us directly — we’re happy to assist. We offer installation and customization services at our two locations in Austin, Texas and the Los Angeles, California area. 512-982-9393 (TX) or 562-981-6800 (CA). If you’re considering 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