ProX Engine Rebuild Kit
- Complete rotating and reciprocating rebuild kit including crankshaft assembly, main bearings and seals, pistons and components, and a complete engine gasket kit
- All components were developed through extensive research and development on Pro-X in-house engine dyno
- Crankshafts come completely assembled using Maxima® assembly lube and are inspected in-house for proper dimensions and trueness
- Connecting rods feature proprietary design done in-house, and are forged, heat-treated and shot-peened for ultimate tensile strength and reduced stress risers
- Connecting rods include graded bearings in the big end to ensure proper clearance, as well as a bronze bushing in the small end, both improving longevity and performance
- Pistons are cast from OEM-grade alloy and feature MOS2 skirt coating and hard-anodized crown and ring grooves for improved performance and wear resistance through reduced friction and improved heat resistance
Product Note:
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
Polaris
Polaris
- RZR 4 800 2013
- RZR 800 2008-2010
- RZR S 800 2011-2014
- RZR SW 800 2010
- Ranger 800 2010
- Ranger 800 6x6 2010-2016
- Ranger Crew 800 2011-2014
- Sportsman 800 EFI 2007-2014
- Sportsman X2 800 EFI 2007, 2009
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