Polaris Ranger/RZR 800 Big Bore Master Top End Rebuild Kit 2011-2017

Description

2011-2017 Polaris Ranger/RZR 800 Big Bore Top-End Rebuild Parts

The Polaris Ranger/RZR 800 Big Bore Master Top End Rebuild Kit is built for 2011-2017 models that need a larger top-end rebuild. It includes a new big bore cylinder, 82mm high-performance piston kit, intake and exhaust valves, and a complete top end gasket kit.

In addition, this master kit combines the big bore parts with new valve components for a more complete top-end build. Before assembly, always check piston and cylinder clearances against the correct specifications for your engine.

What This Ranger/RZR 800 Kit Includes

• New big bore cylinder
• High-performance piston kit 82mm
• Complete top end gasket kit
• (2) Intake valve
• (2) Exhaust valve

Polaris Ranger/RZR 800 Fitment

• 2011-2017 Polaris Ranger 800
• 2011-2017 Polaris RZR 800

Ranger/RZR 800 Big Bore Piston Installation Help

Before installing the piston and rings, review the REV6 piston and ring installation guide. The guide covers piston prep, ring position, end gap checks, wrist pin installation, and important clearance checks for engine assembly.

Compare Polaris 800 Top-End Rebuild Options

Looking for Standard-Bore Rebuild Parts?

If you do not need the big bore setup, browse our Polaris RZR/Ranger 800 engine rebuild kits for standard top-end and complete engine rebuild options.

Need More Ranger 800 Engine Parts?

For additional rebuild and replacement parts, browse the 2011-2017 Polaris Ranger 800 engine parts and rebuild kits.

Finally, if you need help choosing between a big bore build and a standard rebuild, contact REV6. Our team can help you compare the available options.

For a larger rebuild purchase, you can also review our financing options. This kit ships nationwide and is backed by our 1-year warranty.