80MM Cylinder Piston Ring Gasket Top End Kit for Polaris RZR 800 EFI 2008-2014

80MM Top End Kit for Polaris RZR 800 EFI

The 80MM Cylinder Piston Ring Gasket Top End Kit for Polaris RZR 800 EFI 2008-2014 restores top end compression with a matched cylinder, piston, ring set, and gaskets for a complete rebuild.

Overview

This 80MM Cylinder Piston Ring Gasket Top End Kit gives you the core components needed to refresh the upper end of your engine in one box. The 80MM Cylinder Piston Ring Gasket Top End Kit for Polaris RZR 800 EFI 2008-2014 pairs an 80mm bore cylinder with a matching piston, rings, and gasket set so the parts work together as a system. It suits riders and mechanics rebuilding a worn or seized top end on 2008 through 2014 RZR 800 EFI machines.

Built For Performance

• 80mm bore cylinder sized to match the RZR 800 EFI engine
• Piston machined for consistent clearance and smooth travel in the bore
• Ring set designed to seal combustion pressure and control oil
• Complete gasket kit for sealing the top end during reassembly
• Matched components that install together as one rebuild package
• Direct-fit dimensions for the listed 2008-2014 applications

Fits These Machines

• for Polaris RZR 800 EFI 2008
• for Polaris RZR 800 EFI 2009
• for Polaris RZR 800 EFI 2010
• for Polaris RZR 800 EFI 2011
• for Polaris RZR 800 EFI 2012
• for Polaris RZR 800 EFI 2013
• for Polaris RZR 800 EFI 2014

On-The-Job Use

• Top end rebuild after low compression or hard starting
• Replacing a scored or worn cylinder and piston
• Routine engine refresh on high-hour RZR 800 EFI machines
• Trail and dune riding where reliable compression matters
• Workshop repairs on 2008-2014 RZR 800 EFI models

Specs At A Glance

Good To Know

Q: Do I need to check my bore size before ordering? A: Yes, confirm your machine uses an 80mm bore and that the cylinder matches your existing setup before installation. Measuring the old bore and piston helps avoid a mismatch.

Q: What else should I replace during a top end rebuild? A: Along with this kit, it is common to inspect the wrist pin, bearing, and cylinder head while the engine is apart. Replacing worn fasteners and checking torque specs during reassembly helps the rebuild last.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.