Polaris RZR Pro S Sport Premium Ultimate 9:1 High Comp STD Piston Set 2025-2026

Description

9:1 High Comp STD Pistons for the 2025-2026 RZR Pro S

This 9:1 High Comp STD Piston Set fits listed 2025-2026 Polaris RZR Pro S Sport, RZR Pro S Premium, and RZR Pro S Ultimate models. Choose this listing when your engine build calls for the specified 9:1 High Comp STD piston configuration.

This Kit Includes

• High-Comp Piston Set (9:1) STD

Preparing for Piston Installation?

Before assembly, review the REV6 Piston and Ring Installation Guide. In addition, our Piston Ring Gap Guide covers ring-gap checks during engine assembly.

Need Additional Top-End Parts?

If your rebuild also requires a gasket set, compare the 2025-2026 Polaris RZR Pro S Top End Rebuild Kit. Review its listed components against your build before choosing between the piston set and the broader top-end package.

Another Route for Your RZR Pro S Engine

If you would rather have REV6 complete the engine rebuild, see our 2025-2026 Polaris RZR Pro S Engine Rebuild. The engine page provides the rebuild details, core requirements, process, and available warranty options.

Questions About Fitment or Engine Parts?

This piston set is backed by a 1-year REV6 parts warranty. Contact REV6 if you need help confirming the correct parts for your RZR Pro S engine.