Description

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

When your engine needs more than a quick repair, this Complete Engine Rebuild Kit helps bring the project together with the major components commonly replaced during a full rebuild. Designed for applicable 2017–2022 Polaris Ranger and Sportsman 450 / 500 models, this kit covers the rotating assembly, top-end service parts, timing components, and sealing surfaces.

Instead of piecing together multiple orders, this package helps simplify the rebuild process and keeps your engine project moving.

This Kit Includes

• Cylinder
• Timing Chain / Oil Pump Chain
• Crankshaft
• Crankshaft 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

Built for Complete Engine Projects

This rebuild kit combines major wear components into one package to help reduce downtime and improve build planning. Replacing rotating components, timing parts, and sealing surfaces together can help support smoother operation after assembly.

Additionally, using matched rebuild components helps eliminate guesswork during ordering.

Helpful Related Parts

Need additional rebuild support? Consider pairing this kit with:

• Complete Engine Rebuild Kit + Tensioner
• Polaris Prostar Crankshaft
• Polaris Prostar Cylinder
• Polaris Prostar Timing Chain

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

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

Support & Resources

Need help confirming fitment or choosing the right rebuild path? 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 Engine Rebuild Kit and rebuild with confidence using components selected to support your next engine project.

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.