Description

Polaris 800 engines rely on a strong, properly sealed top end to maintain compression and power. This master top-end rebuild kit is designed for full top-end service when wear or damage makes partial repairs risky. A 1-year REV6 parts warranty backs every component in this kit.

By replacing the cylinder, pistons, valves, and gaskets together, you eliminate weak points above the cases. As a result, compression improves, valve sealing tightens up, and the engine runs cleaner after reassembly.

THIS KIT INCLUDES

• New cylinder
• Top-end gasket set
• (2) moly-coated pistons
• (2) intake valves
• (2) exhaust valves

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Polaris 800 complete bottom end rebuild kit

LEARN MORE & GET SUPPORT

Review coverage on our warranty page, get rebuild insight from the REV6 blog, find quick answers in the FAQ section, or contact our team for direct help.

FITMENT

Polaris RZR / Ranger / Sportsman 800
2004–2012

TAKE ACTION

If compression is down or the top end is already apart, don’t mix worn parts with new ones. This rebuild kit ships nationwide and is ready to install. Add it to your cart and restore strong, reliable top-end performance.

Veterans and servicemembers qualify for exclusive REV6 savings—thank you for your service.