Description

Fix It Right the First Time

The Polaris PRO RMK 800 Complete Upgraded Fix Kit for 2011–2012 snowmobiles delivers lasting performance and protection against the common top-end issues found in these engines. Built for riders, shops, and DIY mechanics, this kit includes all components needed to correct compression and improve engine durability.

Why Choose REV6 Fix Kits

Our silicone alloy pistons feature stronger ring lands, tighter skirt tolerances, and less expansion for improved reliability. Each piston is drilled for better oiling and coated with an MSO2 break-in film for smoother operation. Unlike other spacer plates that can reduce compression, REV6 plates are machined to exact tolerances for consistent power and proper cylinder sealing. As a result, your RMK 800 performs stronger, runs cooler, and lasts longer.

This Kit Includes

• (2) Moly coated cast fix kit pistons
• (2) Piston ring sets
• (2) Wrist pins
• (4) Circlips
• (1) Fix kit spacer plate
• Fix kit bolts and dowel kit
• (1) REV6 top-end gasket set

Built for Riders and Mechanics

Designed for precise fitment and easy installation, this kit works perfectly for riders doing top-end refreshes or shops performing full engine services. Each part meets or exceeds OEM specifications, ensuring proper compression and sealing across every build.

Warranty and Support

All REV6 parts are backed by our standard 1-year warranty.

Need help with installation? Visit our Help Center or browse our FAQ. You can also Contact Us directly for assistance. For step-by-step rebuild videos and tech tips, check the REV6 Blog or our YouTube channel. Learn how to pick the right setup in our Engine Rebuild Kit Guide.

Fitment Information

• 2011–2012 Polaris PRO RMK 800 Snowmobiles

Thank you for choosing REV6 — your trusted source for high-performance powersports engines and parts. We proudly support U.S. veterans and servicemembers with exclusive discounts as our way of giving back to those who serve.