Description

Polaris Ranger / Sportsman 450 & 500 Prostar Cylinder (2017–2022)

Restore your top end with this Prostar replacement cylinder for applicable 2017–2022 Polaris Ranger and Sportsman 450 / 500 models. The cylinder plays a major role in compression, piston movement, and overall engine performance, making it one of the most important components during rebuild work.

If your original cylinder shows wear, scoring, damage, or excessive clearance, replacing it during service helps support a cleaner rebuild and dependable operation after installation.

This Kit Includes

• Cylinder

Fitment

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

Why Replace the Cylinder?

The cylinder provides the running surface for the piston and supports proper compression throughout the engine cycle. Over time, wear, heat, and contamination can affect performance and sealing.

Replacing the cylinder during top-end service can help improve rebuild quality and reduce repeat teardown later.

Helpful Related Parts

• Polaris Prostar STD Piston Kit
• Top End Rebuild Kit
• Complete Top End Rebuild Kit
• Engine Rebuild Kit
• Gasket & Seal Kit

Need help comparing rebuild levels? Review our Engine Rebuild Kit 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 Prostar Cylinder 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.