KB PISTONS KB542LCA.STD PISTON SUPER DUTY 4.125" BORE M8 114/117 TO 120" STD

KB PISTONS KB542LCA.STD PISTON SUPER DUTY 4.125" BORE M8 114/117 TO 120" STD

Manufacturer Part Number: KB542LCA.STD

WPS Part Number: 824-01800

Product Type: Piston kits & Components

Features

• Anodized top ring groove and crown
• Line2Line Abradable skirt coating applied to .003" total thickness for a ZERO initial fit to allow coating to hone in for a tight quiet running clearance
• Round wire locks
• Premium Hastings 1.2mm 1.2mm 3.0mm Steel Nitride top ring with a Ductile Napier second ring
• Forced wrist pin oiling
• M8 version with flat top 1.2cc with compression height 1.083", valve pockets sized to accommodate 1mm oversize valves
• All Rings, Wrist Pins and Wrist Pin Locks included.
• Pistons sold as a PAIR.

Verified Vehicle Fitment

• 2018 Harley Davidson FLDE Softail Deluxe
• 2019 Harley Davidson FLDE Softail Deluxe
• 2020 Harley Davidson FLDE Softail Deluxe
• 2018 Harley Davidson FLFB Softail Fat Boy
• 2019 Harley Davidson FLFB Softail Fat Boy
• 2020 Harley Davidson FLFB Softail Fat Boy
• 2018 Harley Davidson FLFBS Softail Fat Boy 114
• 2019 Harley Davidson FLFBS Softail Fat Boy 114
• 2020 Harley Davidson FLFBS Softail Fat Boy 114
• 2021 Harley Davidson FLFBS Softail Fat Boy 114
• 2022 Harley Davidson FLFBS Softail Fat Boy 114
• 2023 Harley Davidson FLFBS Softail Fat Boy 114
• 2024 Harley Davidson FLFBS Softail Fat Boy 114
• 2025 Harley Davidson FLFBS Softail Fat Boy 114
• 2018 Harley Davidson FLHC Softail Heritage Classic
• 2019 Harley Davidson FLHC Softail Heritage Classic
• 2020 Harley Davidson FLHC Softail Heritage Classic
• 2025 Harley Davidson FLHC Softail Heritage Classic
• 2018 Harley Davidson FLHCS Softail Heritage Classic 114
• 2019 Harley Davidson FLHCS Softail Heritage Classic 114
• 2020 Harley Davidson FLHCS Softail Heritage Classic 114
• 2021 Harley Davidson FLHCS Softail Heritage Classic 114
• 2022 Harley Davidson FLHCS Softail Heritage Classic 114
• 2023 Harley Davidson FLHCS Softail Heritage Classic 114
• 2024 Harley Davidson FLHCS Softail Heritage Classic 114
• 2017 Harley Davidson FLHR Road King
• 2018 Harley Davidson FLHR Road King
• 2019 Harley Davidson FLHR Road King
• 2020 Harley Davidson FLHR Road King
• 2018 Harley Davidson FLHRXS Road King Special
• 2019 Harley Davidson FLHRXS Road King Special
• 2020 Harley Davidson FLHRXS Road King Special
• 2021 Harley Davidson FLHRXS Road King Special
• 2022 Harley Davidson FLHRXS Road King Special
• 2023 Harley Davidson FLHRXS Road King Special
• 2024 Harley Davidson FLHRXS Road King Special
• 2025 Harley Davidson FLHRXS Road King Special
• 2019 Harley Davidson FLHT Electra Glide
• 2020 Harley Davidson FLHT Electra Glide
• 2017 Harley Davidson FLHTCU Electra Glide Ultra Classic
• 2018 Harley Davidson FLHTCU Electra Glide Ultra Classic
• 2019 Harley Davidson FLHTCU Electra Glide Ultra Classic
• 2017 Harley Davidson FLHTCUTG Tri Glide Ultra Classic
• 2018 Harley Davidson FLHTCUTG Tri Glide Ultra Classic
• 2019 Harley Davidson FLHTCUTG Tri Glide Ultra Classic
• 2020 Harley Davidson FLHTCUTG Tri Glide Ultra Classic
• 2020 Harley Davidson FLHTCUTGSE CVO Tri Glide
• 2017 Harley Davidson FLHTK Electra Glide Ultra Limited
• 2018 Harley Davidson FLHTK Electra Glide Ultra Limited
• 2019 Harley Davidson FLHTK Electra Glide Ultra Limited
• 2020 Harley Davidson FLHTK Electra Glide Ultra Limited
• 2021 Harley Davidson FLHTK Electra Glide Ultra Limited
• 2022 Harley Davidson FLHTK Electra Glide Ultra Limited
• 2023 Harley Davidson FLHTK Electra Glide Ultra Limited
• 2024 Harley Davidson FLHTK Electra Glide Ultra Limited
• 2018 Harley Davidson FLHTKL Electra Glide Ultra Limited Low
• 2019 Harley Davidson FLHTKL Electra Glide Ultra Limited Low
• 2017 Harley Davidson FLHTKSE CVO Limited
• 2018 Harley Davidson FLHTKSE CVO Limited
• 2019 Harley Davidson FLHTKSE CVO Limited
• 2020 Harley Davidson FLHTKSE CVO Limited
• 2017 Harley Davidson FLHX Street Glide
• 2018 Harley Davidson FLHX Street Glide
• 2019 Harley Davidson FLHX Street Glide
• 2020 Harley Davidson FLHX Street Glide
• 2017 Harley Davidson FLHXS Street Glide Special
• 2018 Harley Davidson FLHXS Street Glide Special
• 2019 Harley Davidson FLHXS Street Glide Special
• 2020 Harley Davidson FLHXS Street Glide Special
• 2021 Harley Davidson FLHXS Street Glide Special
• 2022 Harley Davidson FLHXS Street Glide Special
• 2023 Harley Davidson FLHXS Street Glide Special
• 2024 Harley Davidson FLHXS Street Glide Special
• 2025 Harley Davidson FLHXS Street Glide Special
• 2017 Harley Davidson FLHXSE CVO Street Glide
• 2018 Harley Davidson FLHXSE CVO Street Glide
• 2019 Harley Davidson FLHXSE CVO Street Glide
• 2020 Harley Davidson FLHXSE CVO Street Glide
• 2025 Harley Davidson FLHXSE CVO Street Glide
• 2017 Harley Davidson FLRT Freewheeler
• 2018 Harley Davidson FLRT Freewheeler
• 2019 Harley Davidson FLRT Freewheeler
• 2020 Harley Davidson FLRT Freewheeler
• 2018 Harley Davidson FLSB Softail Sport Glide
• 2019 Harley Davidson FLSB Softail Sport Glide
• 2020 Harley Davidson FLSB Softail Sport Glide
• 2018 Harley Davidson FLSL Softail Slim
• 2019 Harley Davidson FLSL Softail Slim
• 2020 Harley Davidson FLSL Softail Slim
• 2017 Harley Davidson FLTR Road Glide
• 2018 Harley Davidson FLTR Road Glide
• 2019 Harley Davidson FLTR Road Glide
• 2020 Harley Davidson FLTR Road Glide
• 2020 Harley Davidson FLTRK Road Glide Limited
• 2021 Harley Davidson FLTRK Road Glide Limited
• 2022 Harley Davidson FLTRK Road Glide Limited
• 2023 Harley Davidson FLTRK Road Glide Limited
• 2024 Harley Davidson FLTRK Road Glide Limited
• 2017 Harley Davidson FLTRU Road Glide Ultra
• 2018 Harley Davidson FLTRU Road Glide Ultra
• 2019 Harley Davidson FLTRU Road Glide Ultra
• 2020 Harley Davidson FLTRX Road Glide Custom
• 2017 Harley Davidson FLTRXS Road Glide Special
• 2018 Harley Davidson FLTRXS Road Glide Special
• 2019 Harley Davidson FLTRXS Road Glide Special
• 2020 Harley Davidson FLTRXS Road Glide Special
• 2021 Harley Davidson FLTRXS Road Glide Special
• 2022 Harley Davidson FLTRXS Road Glide Special
• 2023 Harley Davidson FLTRXS Road Glide Special
• 2024 Harley Davidson FLTRXS Road Glide Special
• 2025 Harley Davidson FLTRXS Road Glide Special
• 2018 Harley Davidson FLTRXSE CVO Road Glide
• 2019 Harley Davidson FLTRXSE CVO Road Glide
• 2018 Harley Davidson FXBB Softail Street Bob
• 2019 Harley Davidson FXBB Softail Street Bob
• 2020 Harley Davidson FXBB Softail Street Bob
• 2018 Harley Davidson FXBR Softail Breakout
• 2019 Harley Davidson FXBR Softail Breakout
• 2018 Harley Davidson FXBRS Softail Breakout 114
• 2019 Harley Davidson FXBRS Softail Breakout 114
• 2020 Harley Davidson FXBRS Softail Breakout 114
• 2019 Harley Davidson FXDR Softail Power Cruiser
• 2020 Harley Davidson FXDRS Softail FXDR 114
• 2018 Harley Davidson FXFB Softail Fat Bob
• 2019 Harley Davidson FXFB Softail Fat Bob
• 2018 Harley Davidson FXFBS Softail Fat Bob 114
• 2019 Harley Davidson FXFBS Softail Fat Bob 114
• 2020 Harley Davidson FXFBS Softail Fat Bob 114
• 2018 Harley Davidson FXLR Softail Low Rider
• 2019 Harley Davidson FXLR Softail Low Rider
• 2020 Harley Davidson FXLR Softail Low Rider
• 2020 Harley Davidson FXLRS Softail Low Rider S
• 2021 Harley Davidson FXLRS Softail Low Rider S
• 2022 Harley Davidson FXLRS Softail Low Rider S
• 2023 Harley Davidson FXLRS Softail Low Rider S
• 2024 Harley Davidson FXLRS Softail Low Rider S
• 2025 Harley Davidson FXLRS Softail Low Rider S
• 2022 Harley Davidson FXLRST Softail Low Rider ST
• 2023 Harley Davidson FXLRST Softail Low Rider ST
• 2024 Harley Davidson FXLRST Softail Low Rider ST
• 2025 Harley Davidson FXLRST Softail Low Rider ST
• 2017 Harley Davidson FXSE CVO Softail Pro Street Breakout