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KB Performance Super-Duty 128in. Big Bore Piston Kit - 4.250in. - KB596LCA.005

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KB596LCA.005
Limited Supply: only 5 remaining
NOTE: This product has the following shipping restriction(s):
  • This product cannot ship to California.
Was: $465.95
Sale: $372.26
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Save: $93.69

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NOTE: This product has the following shipping restriction(s):
  • This product cannot ship to California.
Free Ground Shipping (1 - 5 Days)

Description

Updates stock 107in., 114in. or 117in. motor to 124in. or 128in. when using 4.250in. big bore cylinders
Valve pockets are designed to accept up to +4mm oversized intake and exhaust valves
Type 3 hard-anodized crown offers corrosion resistance for alcohol-added fuels
Type 3 hard-anodized top ring groove eliminates micro-welding of ring to the groove and gives a hard-flat surface for ring to rotate on
OE-style round wire locks are easily installed
Heavy-duty wrist pins with true .9270in. diameter to fit rods correctly
Line2Line AST skirt coating starts out with a near-zero wall clearance and through the break-in period hones the cylinders to produce the correct oil wedge, keeping the piston square to the cylinder for best ring seal and quiet operation
Kit includes pistons, rings, pins and locks
NOTE: Requires the separate purchase of 4.250in. bore cylinders PART #0931-0823.

Product Series

Application List

YearsMakeModelApplicationNotes
2018 - 2020Harley DavidsonFLDE Deluxe 107
2018 - 2019Harley DavidsonFLFB Fat Boy 107
2018 - 2022Harley DavidsonFLFBS Fat Boy 114
2018 - 2021Harley DavidsonFLHC Heritage Classic 107
2018 - 2022Harley DavidsonFLHCS Heritage Classic 114
2017 - 2022Harley DavidsonFLHR Road King
2017 - 2022Harley DavidsonFLHRXS Road King Special
2019 - 2022Harley DavidsonFLHT Electra Glide Standard
2017 - 2019Harley DavidsonFLHTCU Electra Glide Ultra Classic
2017 - 2021Harley DavidsonFLHTCUTG Tri Glide Ultra
2020 - 2022Harley DavidsonFLHTCUTGSE CVO Tri Glide
2017 - 2022Harley DavidsonFLHTK Ultra Limited
2017 - 2019Harley DavidsonFLHTKL Ultra Limited Low
2017 - 2021Harley DavidsonFLHTKSE CVO Limited
2017 - 2022Harley DavidsonFLHX Street Glide
2017 - 2022Harley DavidsonFLHXS Street Glide Special
2017 - 2017Harley DavidsonFLHXSE CVO Street Glide
2017 - 2017Harley DavidsonFLRT Freewheeler
2017 - 2017Harley DavidsonFLS Softail Slim
2018 - 2021Harley DavidsonFLSB Sport Glide 107
2018 - 2021Harley DavidsonFLSL Softail Slim 107
2017 - 2017Harley DavidsonFLSS Softail Slim S
2017 - 2017Harley DavidsonFLSTC Heritage Softail Classic
2017 - 2017Harley DavidsonFLSTF Fat Boy
2017 - 2017Harley DavidsonFLSTFBS Fat Boy S
2017 - 2017Harley DavidsonFLSTN Softail Deluxe
2020 - 2021Harley DavidsonFLTRK Road Glide Limited
2022 - 2022Harley DavidsonFLTRKSE CVO Road Glide Limited
2017 - 2019Harley DavidsonFLTRU Road Glide Ultra
2017 - 2021Harley DavidsonFLTRX Road Glide
2017 - 2021Harley DavidsonFLTRXS Road Glide Special
2018 - 2022Harley DavidsonFLTRXSE CVO Road Glide
2018 - 2020Harley DavidsonFXBB Street Bob 107
2021 - 2022Harley DavidsonFXBBS Street Bob 114
2018 - 2019Harley DavidsonFXBR Breakout 107
2018 - 2020Harley DavidsonFXBRS Breakout 114
2019 - 2020Harley DavidsonFXDRS FXDR 114
2018 - 2019Harley DavidsonFXFB Fat Bob 107
2018 - 2022Harley DavidsonFXFBS Fat Bob 114
2018 - 2020Harley DavidsonFXLR Low Rider 107
2020 - 2021Harley DavidsonFXLRS Low Rider S 114
2022 - 2022Harley DavidsonFXLRS Low Rider S 117
2022 - 2022Harley DavidsonFXLRST Low Rider ST 117
2022 - 2022Harley DavidsonFXRST Low Rider El Diablo 117
2017 - 2017Harley DavidsonFXSB Breakout
2020 - 2021Harley DavidsonFXST Softail Standard 107

Details

  • KB596LCA.005
  • KB596LCA.005
  • KB Performance
  • Available
  • New

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Product Series

Shipping Information

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

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