JE PISTONS Piston Kit – 4.255″ Bore – 4.375″ Stroke – 11.5:1 CR – 114″ M8 399155

Description

• 2618-T6 forged construction provides better aligned grain flow and higher tensile strength to provide durability, even in high-performance builds
• Skirt coating reduces opertating friction and wear
• Offset pins reduce piston rock and minimize operating noise
• Skirt notches for optimal clearance at bottom dead center
• Accumulator groove taps combustion gases below the top ring to promote more consistent, positive ring seal and performance
• Inlcudes two pistons, premium ring packs, wrist pins and wire locks
  

  Fitments

  2025	Harley-Davidson	Tri Glide Ultra Classic FLHTCUTG	–	–
  2025	Harley-Davidson	Road Glide 3 FLTRT	–	–
  2025	Harley-Davidson	Freewheeler FLRT	–	–
  2024	Harley-Davidson	Road Glide Police FLTRXP	–	–
  2024	Harley-Davidson	FLI Hydra-Glide Revival	–	–
  2023-2025	Harley-Davidson	FLTRT Road Glide 3	–	–
  2023	Harley-Davidson	FLHFB Electra Glide Highway King	–	–
  2022-2023	Harley-Davidson	FLHXST Street Glide ST	–	–
  2022-2023	Harley-Davidson	FLTRKSE CVO Road Glide Limited	–	–
  2022-2023	Harley-Davidson	FLTRXST Road Glide ST	–	–
  2022	Harley-Davidson	FLHTCUTG Tri Glide Ultra G.I.	–	–
  2022	Harley-Davidson	Softail Street Bob FXBB	–	–
  2021-2024	Harley-Davidson	FXBBS Street Bob 114	–	–
  2021	Harley-Davidson	FLH Electra Glide Revival	–	–
  2020-2024	Harley-Davidson	FLTRK Road Glide Limited	–	–
  2020-2022	Harley-Davidson	FLHTCUTGSE CVO Tri Glide	–	–
  2020-2021	Harley-Davidson	FXLRS Low Rider S 114	–	–
  2019-2022	Harley-Davidson	FLHT Electra Glide Standard	–	–
  2019-2020	Harley-Davidson	FXDRS FXDR 114	–	–
  2018-2024	Harley-Davidson	FLHCS Heritage Classic 114	–	–
  2018-2024	Harley-Davidson	FLFBS Fat Boy 114	–	–
  2018-2023	Harley-Davidson	FXFBS Fat Bob 114	–	–
  2018-2020	Harley-Davidson	FXBRS Breakout 114	–	–
  2017-2025	Harley-Davidson	FLHRXS Road King Special	–	–
  2017-2025	Harley-Davidson	Road King Police FLHP	–	–
  2017-2025	Harley-Davidson	Electra Glide Police FLHTPI	–	–
  2017-2025	Harley-Davidson	FLHTCUTG Tri Glide Ultra	–	–
  2017-2025	Harley-Davidson	FLHX Street Glide	–	–
  2017-2025	Harley-Davidson	FLRT Freewheeler	–	–
  2017-2024	Harley-Davidson	FLHTK Ultra Limited	–	–
  2017-2024	Harley-Davidson	FLTRX Road Glide	–	–
  2017-2023	Harley-Davidson	FLTRXS Road Glide Special	–	–
  2017-2023	Harley-Davidson	FLHXS Street Glide Special	–	–
  2017-2022	Harley-Davidson	FLHR Road King	–	–
  2017-2021	Harley-Davidson	FLHTKSE CVO Limited	–	–
  2017-2019	Harley-Davidson	FLHTKL Ultra Limited Low	–	–
  2017-2019	Harley-Davidson	FLHTCU Electra Glide Ultra Classic	–	–
  2017-2019	Harley-Davidson	FLTRU Road Glide Ultra	–	–
  2017	Harley-Davidson	FLHXSE CVO Street Glide	–	–

  Fitment Disclosure

  This quick reference fitment information is provided to direct you to our catalog information and the manufacturer’s information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.