MCB Stage 4 2008-2015 Polaris RZR / RANGER 800 Complete Engine Rebuild Kit, crankshaft, pistons, cylinder, bearings, and full engine gasket set

MCB Performance Stage 4 COMPLETE Professional Engine rebuild kit for all 2008 AND UP Polaris RZR / RANGER 800's. This exclusive kit is what we use for all in-House Engine builds and is proven to address the common wear items and DRAMATICALLY increase durability with MUCH Stronger, Precision components. You MUST specify your exact year and note your original cylinder casting number (for instance 5632934) to ensure getting the correct parts.

This Genuine MCB Stage-4 RZR / RANGER rebuild kit includes ALL of the following:

Genuine Polaris completely replated cylinder block.
MCB/HR NEW Forged heavy Duty crankshaft
MCB/Wossner Custom FORGED pistons with HD pins
MCB Custom ring set designed to dramatically reduce oil consumption and increase sealing
MCB/HR NEW HD connecting rods with bushed pin ends (installed)
MCB/HR Premium Fitted Main bearing kit
MCB/HR Premium HD rod bearings (Installed)
Complete counter balancer bearing kit
MCB Complete gasket set with correct valve seals/spring seats
New OE Polaris Oil Pump COMPLETE with NEW water pump shaft installed
New PUMP drive gear (Installed)
New MCB COMPLETE Water Pump Rebuild Kit
MCB Custom Grind HO Camshaft & Lifters


NOTE: There is a core charge that will be refunded when sending us a re-plateable cylinder back. If you have any questions on the core charges or need further information on this kit please feel free to call us. We also stock Upgraded valves, retainers, Oils, filters and many other parts for these engines.

MAKE SURE YOU SPECIFY WHICH YEAR YOU HAVE AT CHECKOUT!!