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Cylinder Kit - 139" - Black - M8

$1,899.95
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Features

  • Aerospace-grade all-aluminum cylinder with nickel-silicon-carbide (NSC) electroplated bore
  • NSC-plated cylinders have less friction for increased horsepower, lower engine temperatures and a longer lifespan
  • Includes pair of all-aluminum NSC-coated bore cylinders, custom-forged pistons with high-tension rings specifically designed for NSC cylinders and a head/base gasket set
  • Replacement gasket sets available separately
  • Upgraded cylinders studs and head bolts recommended
  • Made in the USA
  • Monster big bore kit requires case boring.
  • No sleeving allows for larger bore sizes.

Specs

Product NameCylinder Kit
Color/FinishBlack
Bore Size4.500"
Displacement139"
Stroke Length4-3/8"
UnitsKit
Riding StyleStreet

Fitments

Position Notes
2021Harley-Davidson Electra Glide Revival --
2020-2021Harley-Davidson Softail Low Rider S FXLRS --
2020-2021Harley-Davidson Road Glide Limited FLTRK --
2020-2021Harley-Davidson CVO Tri Glide FLHTCUTGSE --
2020-2021Harley-Davidson Softail Standard FXST --
2019-2021Harley-Davidson Electra Glide Standard EFI FLHTI --
2019-2020Harley-Davidson FXDR 114 --
2018-2021Harley-Davidson Softail Heritage Classic 114 FLHCS --
2018-2021Harley-Davidson Softail Sport Glide FLSB --
2018-2021Harley-Davidson Softail Street Bob FXBB --
2018-2021Harley-Davidson Softail Fat Bob 114 FXFBS --
2018-2021Harley-Davidson Softail Fat Boy 114 FLFBS --
2018-2021Harley-Davidson Softail Heritage Classic FLHC --
2018-2021Harley-Davidson Softail Slim FLSL --
2018-2021Harley-Davidson CVO Road Glide Custom FLTRXSE --
2018-2020Harley-Davidson Softail Low Rider FXLR --
2018-2020Harley-Davidson Softail Breakout 114 FXBRS --
2018-2020Harley-Davidson Softail Deluxe FLDE --
2018-2019Harley-Davidson Softail Breakout FXBR --
2018-2019Harley-Davidson Softail Fat Bob FXFB --
2018-2019Harley-Davidson Softail Fat Boy FLFB --
2017-2021Harley-Davidson Electra Glide Police FLHTPI --
2017-2021Harley-Davidson Road King Special FLHRXS --
2017-2021Harley-Davidson Street Glide Special FLHXS --
2017-2021Harley-Davidson Tri Glide Ultra Classic FLHTCUTG --
2017-2021Harley-Davidson Freewheeler FLRT --
2017-2021Harley-Davidson CVO Electra Glide Ultra Limited FLHTKSE --
2017-2021Harley-Davidson Electra Glide Ultra Limited FLHTK --
2017-2021Harley-Davidson Road Glide Special FLTRXS --
2017-2021Harley-Davidson Road King EFI FLHR --
2017-2021Harley-Davidson Street Glide EFI FLHX --
2017-2021Harley-Davidson Road Glide Custom FLTRX --
2017-2021Harley-Davidson CVO Street Glide FLHXSE --
2017-2019Harley-Davidson Electra Glide Ultra Limited Low FLHTKL --
2017-2019Harley-Davidson Road Glide Ultra FLTRU --
2017-2019Harley-Davidson Electra Glide Ultra Classic EFI FLHTCUI --
  • Fitment

    Fitment

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Spec Sheet

  • SKU9311051

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