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2008-2009 Polaris Sportsman 800 H.O. EFI (piston size 79.97mm) Pro X Engine Rebuild Kit

2008-2009 Polaris Sportsman 800 H.O. EFI (piston size 79.97mm) Pro X 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's 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
  • Includes Japanese-sourced, Koyo main bearings along with OEM quality seals and complete gasket kit to ensure a reliable engine rebuild
  • More applications covered in fewer part numbers with versatile gasket kits and compression ratios