Features & Benefits Extend the life of your cylinder heads Prevent damage to Rocker Arm Towers Install studs and safely re-torque nuts Black Oxide Finish 12 pt Nuts FLS Softail Slim 2017 FLSTF Fat Boy 2017 FLSTC Heritage Softail Classic 2017 FLSTN Softail Deluxe 2017 FXSB Breakout 2017 FLRT Freewheeler 2017 2018 2019 2020 2021 2022 FLHTCUTG Tri Glide Ultra 2017 2018 2019 2020 2021 2022 FLHR Road King 2017 2018 2019 2020 2021 2022 FLHX Street Glide 2017 2018 2019 2020 2021 2022 FLTRX Road Glide 2017 2018 2019 2020 2021 2022 FLHXS Street Glide Special 2017 2018 2019 2020 2021 2022 FLTRXS Road Glide Special 2017 2018 2019 2020 2021 2022 FLHTCU Electra Glide Ultra Classic 2017 2018 2019 FLTRU Road Glide Ultra 2017 2018 2019 FLHTK Ultra Limited 2017 2018 2019 2020 2021 2022 FLHTKL Ultra Limited Low 2017 2018 2019 FLHXSE CVO Street Glide 2017 2018 2019 2020 2021 2022 FLHTKSE CVO Limited 2017 2018 2019 2020 2021 FLHRXS Road King Special 2017 2018 2019 2020 2021 2022 FLTRXSE CVO Road Glide 2018 2019 2020 2021 2022 FXLR Low Rider 107 2018 2019 2020 FXBR Breakout 107 2018 2019 FXBRS Breakout 114 2018 2019 2020 FLSL Softail Slim 107 2018 2019 2020 2021 FXBB Street Bob 107 2018 2019 2020 FXFB Fat Bob 107 2018 2019 FXFBS Fat Bob 114 2018 2019 2020 2021 2022 FLFB Fat Boy 107 2018 2019 FLFBS Fat Boy 114 2018 2019 2020 2021 2022 FLDE Deluxe 107 2018 2019 2020 FLHC Heritage Classic 107 2018 2019 2020 2021 FLHCS Heritage Classic 114 2018 2019 2020 2021 2022 FLSB Sport Glide 107 2018 2019 2020 2021 FXDR 114 2019 2020 FLHRC Road King Classic 107 2018 FLHT Electra Glide Standard 2019 2020 2021 2022 FXLRS Low Rider S 114 2020 2021 FLTRK Road Glide Limited 2020 2021 2022 FLHTCUTGSE CVO Tri Glide 2020 2021 2022 FXST Softail Standard 107 2020 2021 2022 FXBBS Street Bob 114 2021 FLHTCUTG Tri Glide Ultra G.I. 2022