Description

Give your Polaris 800 the solid foundation it deserves with the REV6 Master Bottom End Rebuild Kit. Designed for RZR, Ranger, and Sportsman models built between 2008 and 2010, this package replaces the core rotating components that keep your engine running strong. Whether you’re repairing worn bearings or overhauling the crank assembly, this kit ensures dependable power under any riding condition.

Each component is precision-matched for balance and durability, so you get a rebuild that feels factory-fresh—without the guesswork. Because every part is tested by our experienced REV6 technicians, you can count on consistent oil pressure, smooth operation, and long-term performance. In short, this kit brings your Polaris back to life from the crank up.

This Kit Includes:

• (1) Crankshaft REPLACES OEM#: 2203068
• (4) Counter Balance Kit REPLACES OEM#: BBK0019
• (2) Main Bearings REPLACES OEM#: K084
• (1) Complete Gasket Kit REPLACES OEM#: —
• (1) Oil Seal Kit REPLACES OEM#: —
• (1) Water Pump Seal REPLACES OEM#: —
• (1) Camshaft REPLACES OEM#: CM-102118
• (4) Lifters REPLACES OEM#: JB-817
• (1) Oil Pump REPLACES OEM#: —

Fits the Following Applications:

• 2004–2012 Polaris RZR 800
• 2004–2012 Polaris Ranger 800
• 2004–2012 Polaris Sportsman 800

Take Action

Restore your bottom end with REV6 Powersports parts that meet OEM fit and finish standards. Every rebuild kit includes a 1-year warranty, and you can upgrade to a 2-year no-fault plan for added peace of mind. Learn more in our Warranty Policy and visit the Help Center for installation tips and shipping info.

Need help selecting the right rebuild kit? Review our Engine Rebuild Kit Guide, check our FAQ, or Contact Us for expert assistance from the REV6 team.

Thank you for choosing REV6 — your trusted source for premium Powersports engines and parts. We proudly support veterans and servicemembers with exclusive discounts as a token of our appreciation.