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J.E. Pistons Ultra Series Piston Kit - 93mm Standard Bore - 379451

379451

Description

In-house forging has allowed JE to develop proprietary Aligned Grain Flow Technology forging technology that directs the grain flow of the aluminum to flow around critical areas of the piston, increasing strength
Lateral gas ports channel combustion gases to the back of the top ring groove, which adds pressure behind the compression ring to keep it pushed against the cylinder, providing improved and more consistent ring seal, critical in boosted applications
Ultra-thick ring lands aid in maintaining ring stability in forced induction and high-horsepower N/A engines, contributing to consistent ring seal and consistent power
Thermal Barrier Crown Coating ΓÇô a ceramic coating on the piston crown ΓÇô greatly reduces heat transfer into the piston material, decreasing fatigue and improving longevity
Tuff Skirt ΓÇô a proprietary, moly-based dry film skirt coating is applied in-house and reduces operating friction for better wear resistance
Accumulator groove provides additional volume to trap unwanted gases below the top ring to keep pressure low and ring seal and performance high
Double pin oilers ΓÇô two oil channels feed into the pin bore to maintain proper lubrication to improve wrist pin and pin bore wear resistance
Includes upgraded 9310 wrist pins: stronger, thicker wrist pin material is designed to withstand additional loads of forced induction applications
Sold as a complete kit with all necessary pistons, rings, wrist pins and wire locks under one part number

Product Series

Application List

YearsMakeModelApplicationNotes
2011 - 2013PolarisRanger RZR XP 900

Shipping Information

  • Item Requires Shipping
  • 5.0 lbs.
  • W6.0000” x H10.0000” x L4.0000”
  • Free Ground Shipping (1 - 5 Days)