Description

Polaris Ranger 900 Bottom-End Rebuild Kit with Crankcase Assembly (2013–2016)

This Complete Bottom End Rebuild Kit with Cases fits Polaris Ranger 900 models from 2013–2016. Designed for serious lower-end restoration, this package includes the crankcase assembly along with upgraded rotating components to restore strength, balance, and long-term durability.

What This Kit Includes

• Crankcase Assembly
• HD Twin Crankshaft
• Crankshaft Main Bearings
• Balance Shaft Bearings
• Complete Gasket & Seal Kit
• (2) Forged Connecting Rods
• (2) Upgraded Pistons

First, the crankcase assembly provides a solid foundation for proper engine alignment. Next, the HD twin crankshaft and forged connecting rods strengthen the rotating assembly. In addition, upgraded pistons help stabilize compression and improve durability under load. Finally, replacing bearings and seals ensures proper oil control and smooth operation. As a result, your Ranger 900 lower end is rebuilt with confidence.

Technical Support & Build Guidance

Before installation, review our Polaris Crankshaft Bearing Mapping Guide to confirm correct bearing sizing. For piston setup tips, see our Piston & Ring Installation Guide. You can also browse more Polaris components in our Polaris parts catalog.

Warranty & Support

This kit includes a 1-year parts warranty. For full warranty details, visit our warranty policy, or reach out through our contact page if you need assistance.

Fitment

Polaris Ranger 900
2013–2016 Models

Take Action

Rebuild your Ranger 900 lower end with matched crankcase and rotating components. Order today with nationwide shipping and get your rebuild started.

Veterans and active servicemembers qualify for available discounts. Thank you for your service.