![KB PERFORMANCE Piston Kit - 4.125" +0.020" - 11.0:1 CR - 114"/117" Bored to 120" - M8 [KB542LCA020]](https://cdn11.bigcommerce.com/s-2wrnp2lk/images/stencil/1280x1280/products/130892/140827/parts-09105726__89477.1787116979.jpg?c=2 "KB PERFORMANCE Piston Kit - 4.125\" +0.020\" - 11.0:1 CR - 114\"/117\" Bored to 120\" - M8 [KB542LCA020]")
![KB PERFORMANCE Piston Kit - 4.125" +0.020" - 11.0:1 CR - 114"/117" Bored to 120" - M8 [KB542LCA020]](https://cdn11.bigcommerce.com/s-2wrnp2lk/images/stencil/500x659/products/130892/140827/parts-09105726__89477.1787116979.jpg?c=2 "KB PERFORMANCE Piston Kit - 4.125\" +0.020\" - 11.0:1 CR - 114\"/117\" Bored to 120\" - M8 [KB542LCA020]")
KB PERFORMANCE Piston Kit - 4.125" +0.020" - 11.0:1 CR - 114"/117" Bored to 120" - M8 [KB542LCA020]
Manufacturer Part Number: KB542LCA020
Parts Unlimited Part Number: 09105726
Product Type: Piston & Ring Kits
Piston Kit - 4.125" +0.020" - 11.0:1 CR - 114"/117" Bored to 120" - M8
Details
- Stroke Length: 4.500"
- Bore - Oversize: +0.020"
- Riding Style: Street
- Bore Size: 4.125"
- Model: Super Duty
- Piston Material: 4032 Aluminum Alloy
- Compression Ratio: 11.0:1
- Style: Forged
- Units: Kit
- Displacement: 120"
- Piston Head Shape: Flat Top
- Product Name: Piston Kit
- New skirt coating technology is applied to the entire thickness of the piston-to-wall clearance for a zero install clearance; coating then abrades in on start-up to hone for the perfect fit per cylinder
- Hard anodized top ring groove eliminates micro welding of the ring to the groove; this maintains a flat and smooth surface for the best ring seal and top ring groove
- Teflon based skirt coating eliminates piston rock for the best possible ring seal with no piston slap noise
- Hard anodized crown to aid in heat deflection and to reduce corrosion from alcohol fuels
- Flat Top 1.2 cc design with oversized valve pockets to accept 1.00 mm larger valves
- Includes pistons, rings, pins and clips
- Made in the USA
Verified Fitment
- 2017 Harley-Davidson Electra Glide Police FLHTPI
- 2020 Harley-Davidson Electra Glide Police FLHTPI
- 2023 Harley-Davidson Electra Glide Police FLHTPI
- 2021 Harley-Davidson Electra Glide Police FLHTPI
- 2024 Harley-Davidson Electra Glide Police FLHTPI
- 2019 Harley-Davidson Electra Glide Police FLHTPI
- 2018 Harley-Davidson Electra Glide Police FLHTPI
- 2022 Harley-Davidson Electra Glide Police FLHTPI
- 2017 Harley-Davidson FLHX Street Glide
- 2023 Harley-Davidson FLHX Street Glide
- 2018 Harley-Davidson FLHX Street Glide
- 2022 Harley-Davidson FLHX Street Glide
- 2024 Harley-Davidson FLHX Street Glide
- 2020 Harley-Davidson FLHX Street Glide
- 2019 Harley-Davidson FLHX Street Glide
- 2021 Harley-Davidson FLHX Street Glide
- 2019 Harley-Davidson FLFBS Fat Boy 114
- 2022 Harley-Davidson FLFBS Fat Boy 114
- 2023 Harley-Davidson FLFBS Fat Boy 114
- 2021 Harley-Davidson FLFBS Fat Boy 114
- 2018 Harley-Davidson FLFBS Fat Boy 114
- 2020 Harley-Davidson FLFBS Fat Boy 114
- 2024 Harley-Davidson FLFBS Fat Boy 114
- 2018 Harley-Davidson FLHCS Heritage Classic 114
- 2021 Harley-Davidson FLHCS Heritage Classic 114
- 2024 Harley-Davidson FLHCS Heritage Classic 114
- 2019 Harley-Davidson FLHCS Heritage Classic 114
- 2023 Harley-Davidson FLHCS Heritage Classic 114
- 2022 Harley-Davidson FLHCS Heritage Classic 114
- 2020 Harley-Davidson FLHCS Heritage Classic 114
- 2018 Harley-Davidson FLRT Freewheeler
- 2019 Harley-Davidson FLRT Freewheeler
- 2020 Harley-Davidson FLRT Freewheeler
- 2021 Harley-Davidson FLRT Freewheeler
- 2017 Harley-Davidson FLRT Freewheeler
- 2018 Harley-Davidson FLHTCUTG Tri Glide Ultra
- 2019 Harley-Davidson FLHTCUTG Tri Glide Ultra
- 2020 Harley-Davidson FLHTCUTG Tri Glide Ultra
- 2023 Harley-Davidson FLHTCUTG Tri Glide Ultra
- 2024 Harley-Davidson FLHTCUTG Tri Glide Ultra
- 2022 Harley-Davidson FLHTCUTG Tri Glide Ultra
- 2017 Harley-Davidson FLHTCUTG Tri Glide Ultra
- 2021 Harley-Davidson FLHTCUTG Tri Glide Ultra
- 2021 Harley-Davidson Road King Police FLHP
- 2019 Harley-Davidson Road King Police FLHP
- 2020 Harley-Davidson Road King Police FLHP
- 2017 Harley-Davidson Road King Police FLHP
- 2018 Harley-Davidson Road King Police FLHP
- 2021 Harley-Davidson FXBBS Street Bob 114
- 2023 Harley-Davidson FXBBS Street Bob 114
- 2022 Harley-Davidson FXBBS Street Bob 114
- 2024 Harley-Davidson FXBBS Street Bob 114
- 2019 Harley-Davidson FLHTCU Electra Glide Ultra Classic
- 2017 Harley-Davidson FLHTCU Electra Glide Ultra Classic
- 2018 Harley-Davidson FLHTCU Electra Glide Ultra Classic
- 2020 Harley-Davidson FLHT Electra Glide Standard
- 2019 Harley-Davidson FLHT Electra Glide Standard
- 2021 Harley-Davidson FLHT Electra Glide Standard
- 2022 Harley-Davidson FLHT Electra Glide Standard
- 2019 Harley-Davidson FLHTK Ultra Limited
- 2018 Harley-Davidson FLHTK Ultra Limited
- 2020 Harley-Davidson FLHTK Ultra Limited
- 2021 Harley-Davidson FLHTK Ultra Limited
- 2017 Harley-Davidson FLHTK Ultra Limited
- 2020 Harley-Davidson FLHR Road King
- 2019 Harley-Davidson FLHR Road King
- 2022 Harley-Davidson FLHR Road King
- 2017 Harley-Davidson FLHR Road King
- 2018 Harley-Davidson FLHR Road King
- 2021 Harley-Davidson FLHR Road King
- 2019 Harley-Davidson FLTRU Road Glide Ultra
- 2017 Harley-Davidson FLTRU Road Glide Ultra
- 2018 Harley-Davidson FLTRU Road Glide Ultra
- 2021 Harley-Davidson FLTRX Road Glide
- 2019 Harley-Davidson FLTRX Road Glide
- 2017 Harley-Davidson FLTRX Road Glide
- 2018 Harley-Davidson FLTRX Road Glide
- 2020 Harley-Davidson FLTRX Road Glide
- 2021 Harley-Davidson FXFBS Fat Bob 114
- 2018 Harley-Davidson FXFBS Fat Bob 114
- 2020 Harley-Davidson FXFBS Fat Bob 114
- 2019 Harley-Davidson FXFBS Fat Bob 114
- 2022 Harley-Davidson FXLRS Low Rider S 117
- 2024 Harley-Davidson FXLRS Low Rider S 117
- 2023 Harley-Davidson FXLRS Low Rider S 117
- 2018 Harley-Davidson FLHTKL Ultra Limited Low
- 2017 Harley-Davidson FLHTKL Ultra Limited Low
- 2019 Harley-Davidson FLHTKL Ultra Limited Low
- 2019 Harley-Davidson FLTRXS Road Glide Special
- 2021 Harley-Davidson FLTRXS Road Glide Special
- 2017 Harley-Davidson FLTRXS Road Glide Special
- 2018 Harley-Davidson FLTRXS Road Glide Special
- 2020 Harley-Davidson FLTRXS Road Glide Special
- 2019 Harley-Davidson FLHRXS Road King Special
- 2018 Harley-Davidson FLHRXS Road King Special
- 2020 Harley-Davidson FLHRXS Road King Special
- 2021 Harley-Davidson FLHRXS Road King Special
- 2023 Harley-Davidson FLHRXS Road King Special
- 2017 Harley-Davidson FLHRXS Road King Special
- 2022 Harley-Davidson FLHRXS Road King Special
- 2024 Harley-Davidson FLHRXS Road King Special
- 2021 Harley-Davidson FLH Electra Glide Revival
- 2023 Harley-Davidson FXBR Breakout 117
- 2024 Harley-Davidson FXBR Breakout 117
- 2018 Harley-Davidson FLHXS Street Glide Special
- 2020 Harley-Davidson FLHXS Street Glide Special
- 2021 Harley-Davidson FLHXS Street Glide Special
- 2023 Harley-Davidson FLHXS Street Glide Special
- 2017 Harley-Davidson FLHXS Street Glide Special
- 2022 Harley-Davidson FLHXS Street Glide Special
- 2019 Harley-Davidson FLHXS Street Glide Special
- 2018 Harley-Davidson FXBRS Breakout 114
- 2019 Harley-Davidson FXBRS Breakout 114
- 2020 Harley-Davidson FXBRS Breakout 114
- 2020 Harley-Davidson FXDRS FXDR 114
- 2019 Harley-Davidson FXDRS FXDR 114
- 2022 Harley-Davidson FXLRST Low Rider ST 117
- 2024 Harley-Davidson FXLRST Low Rider ST 117
- 2023 Harley-Davidson FXLRST Low Rider ST 117
- 2020 Harley-Davidson FXLRS Low Rider S 114
- 2021 Harley-Davidson FXLRS Low Rider S 114
- 2021 Harley-Davidson FLTRK Road Glide Limited
- 2020 Harley-Davidson FLTRK Road Glide Limited
- 2022 Harley-Davidson FLHTCUTG Tri Glide Ultra G.I.
Yes
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