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

More Information
Manufacturer SKU	10.EK5805.B
Manufacturer:	Prox
Department	PAM-PU
Show Stock	Yes
Riding Style	ATV
California Restricted Product:	No

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Year	Make	Model
2008-2009	Polaris	Sportsman 800 EFI 4x4

Engine Rebuild Kit 10.EK5805.B