Description

Polaris Ranger / Sportsman 450 & 500 Engine Rebuild Kit (2017–2022)

Refresh your engine with the core components commonly replaced during a rebuild using this Engine Rebuild Kit for applicable 2017–2022 Polaris Ranger and Sportsman 450 / 500 models. This package focuses on major rotating assembly, timing, sealing, and piston components to help simplify your rebuild process.

Whether you’re addressing wear, refreshing performance, or rebuilding after internal damage, this kit helps eliminate guesswork and keeps your project moving.

This Kit Includes

• Timing Chain
• Crankshaft
• Crankshaft Ball Bearings
• Water Pump Seal Kit
• Complete Gasket Kit
• Moly Forged Piston

Fitment

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

A Strong Starting Point for Engine Rebuilds

This kit covers the major internal service items needed for many rebuild projects while keeping flexibility for builders who may not need a full complete kit.

Because the crankshaft, piston, timing components, and sealing parts work together, replacing them at the same time can help support smoother operation and simplify assembly.

Helpful Related Parts

• Complete Engine Rebuild Kit
• Polaris Prostar Crankshaft
• Polaris Prostar STD Piston Kit
• Polaris Prostar Timing Chain
• Polaris Ranger 450/500 Gasket Seal Kit

Need help with bearing setup? Review the Polaris Crankshaft Bearing Mapping Guide.

If you’re comparing kit levels, review our Engine Rebuild Kit Guide.

Support & Resources

Need help confirming fitment or selecting supporting components? 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 Engine Rebuild Kit and keep your rebuild moving with components selected to support dependable 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.