Honda TRX450ES Foreman Piston Kit - Wiseco - 9.5:1 CR, 92.00 mm Bore - `98-`04. This forged piston kit is engineered for the TRX450ES Foreman (1998–2004) to restore compression and durability during performance or rebuild projects.

Wiseco's Forged Series pistons are built for versatility across 4-stroke ATVs and UTVs where strength and predictable performance matter. This kit pairs a forged piston sized to a 92.00 mm bore with a 9.5:1 compression ratio and includes wrist pin, rings, and circlips for a complete installation package. Forged construction optimizes strength and service life under high-stress conditions, while the supplied hardware reduces parts hunting and speeds up your rebuild. Ideal for enthusiasts who want a reliable, OEM-compatible replacement when customizing or restoring a TRX450ES.

Features

• Forged piston material for increased durability
• Complete kit: piston, wrist pin, rings, circlips
• 92.00 mm bore with 9.5:1 compression ratio
• Fits Honda TRX450ES Foreman model years 1998–2004
• Designed for 4-stroke ATV/UTV applications

If you have questions or need help confirming fitment, call us directly: 512-982-9393 (TX) or 562-981-6800 (CA). We have two locations in Austin, Texas and the Los Angeles, California area where we offer installation and customization services. If you are considering purchasing multiple items, contact us for possible shipping discounts. We install on premises at both locations.

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