Description

Rebuild your Polaris 900’s bottom end right with the REV6 Crankshaft & Connecting Rods Kit. Designed for the 2011-2012 RZR 900, this upgrade replaces critical rotating parts so your engine runs smooth and strong.

Each kit is built and inspected to match OEM dimensions and materials. As a result, you’ll enjoy better durability, consistent performance, and fewer surprises. In addition, the connecting rods and crankshaft are suited for high-stress use—whether you’re rebuilding after wear or upgrading for performance.

This Kit Includes:

• (1) Crankshaft replaces OEM#: 421-4421
• (2) Connecting Rods replaces OEM#: 421-8704

Fits the Following Applications:

• 2011-2012 Polaris RZR 900 (all models)

Take Action

Order this kit today and restore your engine’s integrity with confidence. For warranty details check our Warranty Policy. For install guides and shipping info visit our Help Center.

Still choosing parts? Refer to our Engine Rebuild Kit Guide, review our FAQ, or reach out via the Contact Page. Financing options are available through REV6 Financing.

Thank you for choosing REV6 — trusted in the powersports industry for quality engines and parts nationwide, and proud to support our veterans and servicemembers with exclusive discounts.