Polaris Outlaw 90 Piston Set - Wiseco - 10.5:1 CR, 47.50 mm Bore - `07-`14. This Wiseco forged piston kit is built for owners who need a direct-fit replacement or a performance-minded refresh for Polaris Outlaw 90 (2007–2014).

The kit includes a forged piston, wrist pin, rings, and circlips for a complete install. Forged construction increases strength and durability under higher stress than cast designs, making it a reliable choice for off-road use and routine modification projects. The 47.50 mm bore and 10.5:1 compression ratio match factory-replacement specifications for compatible model years, providing predictable combustion and consistent fitment.

Features

• Forged Wiseco piston for improved strength and longevity
• 47.50 mm bore size, fits '07–'14 Polaris Outlaw 90 applications
• 10.5:1 compression ratio matched to listed models
• Complete kit: piston, wrist pin, rings, circlips included
• Direct-replacement fit for straightforward installation

This piston set is a practical option for enthusiasts maintaining, repairing, or modestly modifying an Outlaw 90. If you have questions about fitment, compatibility, or installation, call us directly — we’re happy to help. We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) to discuss your project.

If you’re planning to purchase 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