Polaris 90 Sportsman Piston Kit - Wiseco - Forged, 48.00 mm Bore, 10.5:1 CR - `07-`14. A factory-style forged piston kit engineered for the Polaris Outlaw/Sportsman 90 (2007–2014) offering reliable strength and a complete hardware package for a direct replacement or performance-minded rebuild.

This Wiseco Forged Series piston is designed for 4-stroke small-displacement applications and is suitable for ATVs, UTVs, and similar platforms. The kit includes the piston prefinished to 48.00 mm bore size with a 10.5:1 compression ratio, plus wrist pin, rings, and circlips so you have the components needed for installation. Forged construction improves durability under repeated high-stress conditions versus cast pistons and is a common choice for enthusiasts who expect consistent performance and longer service life from a replacement piston.

Features

• Forged 4-stroke piston optimized for strength and longevity
• Complete kit: piston, wrist pin, rings, and circlips included
• 48.00 mm bore size with 10.5:1 compression ratio — fits Polaris Outlaw/Sportsman 90 (2007–2014)
• Engineered for ATV/UTV and small-displacement recreational use

Whether you’re rebuilding an engine or modifying for more responsive performance, this Wiseco piston kit delivers a straightforward, OEM-fit replacement with components ready for install. If you have questions about fitment, installation, or compatibility with other modifications, call us directly — we’re happy to help: 512-982-9393 (TX) or 562-981-6800 (CA). We have two locations in Austin, Texas and Los Angeles, California area where we offer installation and customization services.

If you plan to purchase 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