Description

Polaris Ranger / Sportsman 450 & 500 Complete Top End Rebuild Kit (2017–2022)

Refresh compression and restore upper-engine performance with this Complete Top End Rebuild Kit for applicable 2017–2022 Polaris Ranger and Sportsman 450 / 500 models. This kit combines the major top-end service components commonly replaced during rebuild work into one organized package.

By combining the cylinder, piston kit, and top-end sealing components together, this package helps simplify ordering and reduce downtime during your rebuild.

This Kit Includes

• Cylinder
• Piston Kit
• Top End Gasket Kit

Fitment

• Polaris Ranger 450
• Polaris Ranger 500
• Polaris Sportsman 450
• Polaris Sportsman 500
• Applicable 2017–2022 models

Why Choose a Complete Top-End Kit?

Top-end rebuilds are commonly performed when engines begin showing signs of reduced compression, oil consumption, cylinder wear, or loss of performance. Replacing major upper-engine components together helps support proper fitment and a smoother rebuild process.

This kit focuses on restoring the combustion side of the engine while keeping the project simple and organized.

Helpful Related Parts

• Polaris Prostar Cylinder
• Polaris Prostar STD Piston Kit
• Polaris Ranger 450/500 Gasket Seal Kit
• Engine Rebuild Kit
• Complete Engine Rebuild Kit

If you’re comparing rebuild options, review our Engine Rebuild Kit Guide.

Need help planning your engine build? Visit the Polaris Crankshaft Bearing Mapping Guide.

Support & Resources

Need help confirming fitment before ordering? Visit Contact REV6.

You can also review our Warranty Policy, browse the FAQ, or visit the Help Center.

Need additional flexibility for your rebuild project? Explore our financing options.

Take Action

Order your Polaris Ranger / Sportsman 450 & 500 Complete Top End Rebuild Kit and keep your rebuild moving with components selected to support dependable engine performance.

Thank you for choosing REV6 — your trusted source for high-performance powersports engines and parts. Proudly supporting U.S. veterans and servicemembers with special discounts.