Description

Restore and strengthen your Polaris 570’s engine with the REV6 Complete Bottom End Rebuild Kit with Crank Cases. Designed for 2012–2017 Polaris Ranger and RZR models, this kit provides everything needed to rebuild the lower half of your engine with precision and power in mind.

Each component in this kit is inspected and matched for OEM-level fit and performance. As a result, you’ll experience a smoother-running engine with tighter tolerances, improved durability, and up to 20% more horsepower compared to stock. Built for both weekend warriors and daily riders, this setup is easy to install and built to last.

This Kit Includes:

• (1) Crankshaft — Replaces OEM #: 421-4429
• (2) Ball Bearings — Replaces OEM #: 3514389
• (1) Complete Gasket Kit — OEM-style fit
• (1) Oil Pump Chain — Replaces OEM #: 3222197
• (1) Oil Seal Set — OEM replacement
• (1) Timing Chain — Replaces OEM #: 3222196
• (1) STD Piston Kit — Replaces OEM #: 187-50019
• (1) Crankcase — Replaces OEM #: 2205248

Take Action

Build your bottom end with confidence using quality-tested components from REV6. Learn about warranty details on our Warranty Policy page, or check our Engine Rebuild Kit Guide for helpful rebuild tips.

Need shipping or core return info? Visit our Help Center or reach out directly via our Contact page. Nationwide shipping available.

Thank you for trusting REV6 — your source for proven Powersports engines and parts. We proudly support veterans and servicemembers with special discounts as our way of saying thanks.