Reinforces rocker arm shaft standoffs to prevent cylinder head cracking.
Feuling® studs and nuts help relieve the stress placed on factory and SE cylinder heads by reinforcing the rocker arm shaft standoffs.
Highly recommended when using higher-lift camshafts and heavier valve springs to reduce the chance of head failure.
Helps prevent cylinder head cracking and improves long-term engine reliability.
Made in the USA. 🔧
This product fits the following vehicles. Use the filters below to narrow down the list if needed.
| Manufacturer | Model | Family | Year | Notes |
|---|---|---|---|---|
| Harley Davidson | Softail Deluxe 107 | Softail | 2018 | |
| Harley Davidson | Softail Deluxe 107 | Softail | 2019 | |
| Harley Davidson | Softail Deluxe 107 | Softail | 2020 | |
| Harley Davidson | Softail Fat Boy 107 | Softail | 2018 | |
| Harley Davidson | Softail Fat Boy 107 | Softail | 2019 | |
| Harley Davidson | Softail Fat Boy 107 | Softail | 2020 | |
| Harley Davidson | Softail Fat Boy Anniversary (ANX) 114 | Softail | 2018 | |
| Harley Davidson | Softail Fat Boy 114 | Softail | 2019 | |
| Harley Davidson | Softail Fat Boy 114 | Softail | 2020 | |
| Harley Davidson | Softail Fat Boy 114 | Softail | 2021 | |
| Harley Davidson | Softail Fat Boy 114 | Softail | 2022 | |
| Harley Davidson | Softail Fat Boy 114 | Softail | 2023 | |
| Harley Davidson | Softail Fat Boy 114 | Softail | 2024 | |
| Harley Davidson | Softail Fat Boy 117 | Softail | 2025 | |
| Harley Davidson | Softail Fat Boy 117 | Softail | 2026 | |
| Harley Davidson | Electra Glide Revival 114 | Touring | 2021 | |
| Harley Davidson | Softail Heritage Classic 107 | Softail | 2018 | |
| Harley Davidson | Softail Heritage Classic 107 | Softail | 2019 | |
| Harley Davidson | Softail Heritage Classic 107 | Softail | 2020 | |
| Harley Davidson | Softail Heritage Classic 107 | Softail | 2021 | |
| Harley Davidson | Softail Heritage Classic 107 | Softail | 2022 | |
| Harley Davidson | Softail Heritage Classic 114 | Softail | 2018 | |
| Harley Davidson | Softail Heritage Classic 114 | Softail | 2019 | |
| Harley Davidson | Softail Heritage Classic 114 | Softail | 2020 | |
| Harley Davidson | Softail Heritage Classic 114 | Softail | 2021 | |
| Harley Davidson | Softail Heritage Classic 114 | Softail | 2022 | |
| Harley Davidson | Softail Heritage Classic 114 | Softail | 2023 | |
| Harley Davidson | Softail Heritage Classic 114 | Softail | 2024 | |
| Harley Davidson | Softail Heritage Classic 117 | Softail | 2025 | |
| Harley Davidson | Softail Heritage Classic 117 | Softail | 2026 | |
| Harley Davidson | Electra Glide Highway King 114 | Touring | 2023 | |
| Harley Davidson | Road King 107 | Touring | 2017 | |
| Harley Davidson | Road King 107 | Touring | 2018 | |
| Harley Davidson | Road King 107 | Touring | 2019 | |
| Harley Davidson | Road King 107 | Touring | 2017 | |
| Harley Davidson | Road King 107 | Touring | 2018 | |
| Harley Davidson | Road King 107 | Touring | 2019 | |
| Harley Davidson | Road King 107 | Touring | 2020 | |
| Harley Davidson | Road King 107 | Touring | 2021 | |
| Harley Davidson | Road King 107 | Touring | 2022 | |
| Harley Davidson | Road King Classic 107 | Touring | 2017 | |
| Harley Davidson | Road King Classic 107 | Touring | 2018 | |
| Harley Davidson | Road King Classic 107 | Touring | 2019 | |
| Harley Davidson | Road King Special 107 | Touring | 2017 | |
| Harley Davidson | Road King Special 107 | Touring | 2018 | |
| Harley Davidson | Road King Special 114 | Touring | 2019 | |
| Harley Davidson | Road King Special 114 | Touring | 2020 | |
| Harley Davidson | Road King Special 114 | Touring | 2021 | |
| Harley Davidson | Road King Special 114 | Touring | 2022 | |
| Harley Davidson | Road King Special 114 | Touring | 2023 | |
| Harley Davidson | Road King Special 114 | Touring | 2024 | |
| Harley Davidson | Road King Special 114 | Touring | 2025 | |
| Harley Davidson | Electra Glide Standard 107 | Touring | 2019 | |
| Harley Davidson | Electra Glide Standard 107 | Touring | 2020 | |
| Harley Davidson | Electra Glide Standard 107 | Touring | 2021 | |
| Harley Davidson | Electra Glide Standard 107 | Touring | 2022 | |
| Harley Davidson | Electra Glide Ultra Classic 107 | Touring | 2017 | |
| Harley Davidson | Electra Glide Ultra Classic 107 | Touring | 2018 | |
| Harley Davidson | Electra Glide Ultra Classic 107 | Touring | 2019 | |
| Harley Davidson | Trike Tri Glide Ultra Classic 107 | Trike | 2017 | |
| Harley Davidson | Tri Glide Ultra Anniversary 107 | Trike | 2018 | |
| Harley Davidson | Tri Glide Ultra 107 | Trike | 2019 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2020 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2021 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2022 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2023 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2024 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2025 | |
| Harley Davidson | Tri Glide Ultra CVO 117 | CVO | 2020 | |
| Harley Davidson | Tri Glide Ultra CVO 117 | CVO | 2021 | |
| Harley Davidson | Tri Glide CVO 117 | CVO | 2022 | |
| Harley Davidson | Electra Glide Ultra Limited 107 | Touring | 2017 | |
| Harley Davidson | Ultra Limited Shrine Edition 107 | Touring | 2018 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2019 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2020 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2021 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2022 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2023 | |
| Harley Davidson | Glide Ultra Limited 114 | Touring | 2024 | |
| Harley Davidson | Electra Glide Ultra Limited Low 107 | Touring | 2017 | |
| Harley Davidson | Ultra Limited Low 107 | Touring | 2018 | |
| Harley Davidson | Ultra Limited Low 114 | Touring | 2019 | |
| Harley Davidson | Electra Glide Ultra Limited CVO 114 | CVO | 2017 | |
| Harley Davidson | Ultra Limited CVO 117 | CVO | 2018 | |
| Harley Davidson | Ultra Limited CVO 117 | CVO | 2019 | |
| Harley Davidson | Ultra Limited CVO 117 | CVO | 2020 | |
| Harley Davidson | Ultra Limited CVO 117 | CVO | 2021 | |
| Harley Davidson | Street Glide 107 | Touring | 2017 | |
| Harley Davidson | Street Glide 107 | Touring | 2018 | |
| Harley Davidson | Street Glide 107 | Touring | 2019 | |
| Harley Davidson | Street Glide 107 | Touring | 2017 | |
| Harley Davidson | Street Glide Anniversary 107 | Touring | 2018 | |
| Harley Davidson | Street Glide 107 | Touring | 2019 | |
| Harley Davidson | Street Glide 107 | Touring | 2020 | |
| Harley Davidson | Street Glide 107 | Touring | 2021 | |
| Harley Davidson | Street Glide 107 | Touring | 2022 | |
| Harley Davidson | Street Glide 107 | Touring | 2023 | |
| Harley Davidson | Street Glide 117 | Touring | 2024 | |
| Harley Davidson | Street Glide 117 | Touring | 2025 | |
| Harley Davidson | Street Glide 117 | Touring | 2026 | |
| Harley Davidson | Street Glide Special 107 | Touring | 2017 | |
| Harley Davidson | Street Glide Special 107 | Touring | 2018 | |
| Harley Davidson | Street Glide Special 114 | Touring | 2019 | |
| Harley Davidson | Street Glide Special 114 | Touring | 2020 | |
| Harley Davidson | Street Glide Special 114 | Touring | 2021 | |
| Harley Davidson | Street Glide Special 114 | Touring | 2022 | |
| Harley Davidson | Street Glide Special Anniversary 114 | Touring | 2023 | |
| Harley Davidson | Street Glide CVO 114 | CVO | 2017 | |
| Harley Davidson | Street Glide CVO 117 | CVO | 2018 | |
| Harley Davidson | Street Glide CVO 117 | CVO | 2019 | |
| Harley Davidson | Street Glide CVO 117 | CVO | 2020 | |
| Harley Davidson | Street Glide CVO 117 | CVO | 2021 | |
| Harley Davidson | Street Glide CVO 117 | CVO | 2022 | |
| Harley Davidson | Street Glide CVO 121 | CVO | 2023 | |
| Harley Davidson | Street Glide CVO 121 | CVO | 2024 | |
| Harley Davidson | Street Glide ST 117 | Touring | 2022 | |
| Harley Davidson | Street Glide ST 117 | Touring | 2023 | |
| Harley Davidson | Hydra-Glide Revival 114 | Softail | 2024 | |
| Harley Davidson | Freewheeler 107 | Trike | 2017 | |
| Harley Davidson | Freewheeler 107 | Trike | 2018 | |
| Harley Davidson | Freewheeler 107 | Trike | 2019 | |
| Harley Davidson | Freewheeler 114 | Trike | 2020 | |
| Harley Davidson | Freewheeler 114 | Trike | 2021 | |
| Harley Davidson | Freewheeler 114 | Trike | 2022 | |
| Harley Davidson | Freewheeler 114 | Trike | 2023 | |
| Harley Davidson | Freewheeler 114 | Trike | 2024 | |
| Harley Davidson | Freewheeler 114 | Trike | 2025 | |
| Harley Davidson | Softail Slim | Softail | 2017 | |
| Harley Davidson | Softail Slim | Softail | 2017 | |
| Harley Davidson | Softail Sport Glide 107 | Softail | 2018 | |
| Harley Davidson | Softail Sport Glide 107 | Softail | 2019 | |
| Harley Davidson | Softail Sport Glide 107 | Softail | 2020 | |
| Harley Davidson | Softail Sport Glide 107 | Softail | 2021 | |
| Harley Davidson | Softail Sport Glide 107 | Softail | 2022 | |
| Harley Davidson | Softail Sport Glide 107 | Softail | 2023 | |
| Harley Davidson | Softail Sport Glide 107 | Softail | 2024 | |
| Harley Davidson | Softail Slim 107 | Softail | 2018 | |
| Harley Davidson | Softail Slim 107 | Softail | 2019 | |
| Harley Davidson | Softail Slim 107 | Softail | 2020 | |
| Harley Davidson | Softail Slim 107 | Softail | 2021 | |
| Harley Davidson | Softail Slim S | Softail | 2017 | |
| Harley Davidson | Heritage Softail Classic | Softail | 2017 | |
| Harley Davidson | Fat Boy | Softail | 2017 | |
| Harley Davidson | Fat Boy Special | Softail | 2017 | |
| Harley Davidson | Fat Boy S | Softail | 2017 | |
| Harley Davidson | Softail Fat Boy Gray Ghost 117 | Softail | 2025 | |
| Harley Davidson | Softail Fat Boy Gray Ghost 117 | Softail | 2026 | |
| Harley Davidson | Softail Deluxe | Softail | 2017 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2020 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2021 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2022 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2023 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2024 | |
| Harley Davidson | Road Glide Limited CVO 117 | CVO | 2022 | |
| Harley Davidson | Road Glide Limited Anniversary CVO 117 | CVO | 2023 | |
| Harley Davidson | Road Glide 3 114 | Trike | 2023 | |
| Harley Davidson | Road Glide 3 114 | Trike | 2024 | |
| Harley Davidson | Road Glide 3 114 | Trike | 2025 | |
| Harley Davidson | Road Glide Ultra 107 | Touring | 2017 | |
| Harley Davidson | Road Glide Ultra 107 | Touring | 2018 | |
| Harley Davidson | Road Glide Ultra 114 | Touring | 2019 | |
| Harley Davidson | Road Glide 107 | Touring | 2017 | |
| Harley Davidson | Road Glide 107 | Touring | 2018 | |
| Harley Davidson | Road Glide 107 | Touring | 2019 | |
| Harley Davidson | Road Glide 107 | Touring | 2017 | |
| Harley Davidson | Road Glide 107 | Touring | 2018 | |
| Harley Davidson | Road Glide 107 | Touring | 2019 | |
| Harley Davidson | Road Glide 107 | Touring | 2020 | |
| Harley Davidson | Road Glide 107 | Touring | 2021 | |
| Harley Davidson | Road Glide 107 | Touring | 2022 | |
| Harley Davidson | Road Glide 107 | Touring | 2023 | |
| Harley Davidson | Road Glide 117 | Touring | 2024 | |
| Harley Davidson | Road Glide 117 | Touring | 2025 | |
| Harley Davidson | Road Glide 117 | Touring | 2026 | |
| Harley Davidson | Road Glide Special 107 | Touring | 2017 | |
| Harley Davidson | Road Glide Special 107 | Touring | 2018 | |
| Harley Davidson | Road Glide Special 114 | Touring | 2019 | |
| Harley Davidson | Road Glide Special 114 | Touring | 2020 | |
| Harley Davidson | Road Glide Special 114 | Touring | 2021 | |
| Harley Davidson | Road Glide Special 114 | Touring | 2022 | |
| Harley Davidson | Road Glide Special 114 | Touring | 2023 | |
| Harley Davidson | Road Glide CVO 117 | CVO | 2018 | |
| Harley Davidson | Road Glide CVO 117 | CVO | 2019 | |
| Harley Davidson | Road Glide CVO 117 | CVO | 2020 | |
| Harley Davidson | Road Glide CVO 117 | CVO | 2021 | |
| Harley Davidson | Road Glide CVO 117 | CVO | 2022 | |
| Harley Davidson | Road Glide CVO 121 | CVO | 2023 | |
| Harley Davidson | Road Glide CVO 121 | CVO | 2024 | |
| Harley Davidson | Road Glide ST 117 | Touring | 2022 | |
| Harley Davidson | Road Glide ST 117 | Touring | 2023 | |
| Harley Davidson | Road Glide ST CVO 121 | CVO | 2024 | |
| Harley Davidson | Softail Street Bob 107 | Softail | 2018 | |
| Harley Davidson | Softail Street Bob 107 | Softail | 2019 | |
| Harley Davidson | Softail Street Bob 107 | Softail | 2020 | |
| Harley Davidson | Softail Street Bob 117 | Softail | 2025 | |
| Harley Davidson | Softail Street Bob Solo 117 | Softail | 2026 | |
| Harley Davidson | Softail Street Bob 114 | Softail | 2021 | |
| Harley Davidson | Softail Street Bob 114 | Softail | 2021 | |
| Harley Davidson | Softail Street Bob 114 | Softail | 2022 | |
| Harley Davidson | Softail Street Bob 114 | Softail | 2023 | |
| Harley Davidson | Softail Street Bob 114 | Softail | 2024 | |
| Harley Davidson | Softail Breakout 107 | Softail | 2018 | |
| Harley Davidson | Softail Breakout 107 | Softail | 2019 | |
| Harley Davidson | Softail Breakout 107 | Softail | 2020 | |
| Harley Davidson | Softail Breakout 117 | Softail | 2023 | |
| Harley Davidson | Softail Breakout 117 | Softail | 2024 | |
| Harley Davidson | Softail Breakout 117 | Softail | 2025 | |
| Harley Davidson | Softail Breakout 117 | Softail | 2026 | |
| Harley Davidson | Softail Breakout Anniversary (ANX) 114 | Softail | 2018 | |
| Harley Davidson | Softail Breakout 114 | Softail | 2019 | |
| Harley Davidson | Softail Breakout 114 | Softail | 2020 | |
| Harley Davidson | Softail Breakout 114 | Softail | 2021 | |
| Harley Davidson | Softail Breakout 114 | Softail | 2022 | |
| Harley Davidson | Dyna Street Bob | Dyna | 2017 | |
| Harley Davidson | Dyna Street Bob | Dyna | 2017 | |
| Harley Davidson | Dyna Fat Bob | Dyna | 2017 | |
| Harley Davidson | Dyna Fat Bob | Dyna | 2017 | |
| Harley Davidson | Dyna Low Rider | Dyna | 2017 | |
| Harley Davidson | Dyna Low Rider | Dyna | 2017 | |
| Harley Davidson | Dyna Low Rider S | Dyna | 2017 | |
| Harley Davidson | Softail King 114 | Softail | 2019 | |
| Harley Davidson | Softail King 114 | Softail | 2020 | |
| Harley Davidson | Dyna Wide Glide | Dyna | 2017 | |
| Harley Davidson | Softail Fat Bob 107 | Softail | 2018 | |
| Harley Davidson | Softail Fat Bob 107 | Softail | 2019 | |
| Harley Davidson | Softail Fat Bob 107 | Softail | 2021 | |
| Harley Davidson | Softail Fat Bob 114 | Softail | 2018 | |
| Harley Davidson | Softail Fat Bob 114 | Softail | 2019 | |
| Harley Davidson | Softail Fat Bob 114 | Softail | 2020 | |
| Harley Davidson | Softail Fat Bob 114 | Softail | 2021 | |
| Harley Davidson | Softail Fat Bob 114 | Softail | 2022 | |
| Harley Davidson | Softail Fat Bob 114 | Softail | 2023 | |
| Harley Davidson | Softail Low Rider 107 | Softail | 2018 | |
| Harley Davidson | Softail Low Rider 107 | Softail | 2019 | |
| Harley Davidson | Softail Low Rider 107 | Softail | 2020 | |
| Harley Davidson | Softail Low Rider S 114 | Softail | 2020 | |
| Harley Davidson | Softail Low Rider S 114 | Softail | 2021 | |
| Harley Davidson | Softail Low Rider S 117 | Softail | 2022 | |
| Harley Davidson | Softail Low Rider S 117 | Softail | 2023 | |
| Harley Davidson | Softail Low Rider S 117 | Softail | 2024 | |
| Harley Davidson | Softail Low Rider S 117 H.O. | Softail | 2025 | |
| Harley Davidson | Softail Low Rider S 117 H.O. | Softail | 2026 | |
| Harley Davidson | Softail Low Rider ST EL Diablo 117 | Softail | 2022 | |
| Harley Davidson | Softail Low Rider ST 117 | Softail | 2023 | |
| Harley Davidson | Softail Low Rider ST 117 | Softail | 2024 | |
| Harley Davidson | Softail Low Rider ST 117 H.O. | Softail | 2025 | |
| Harley Davidson | Softail Low Rider ST 117 H.O. | Softail | 2026 | |
| Harley Davidson | Breakout | Softail | 2017 | |
| Harley Davidson | Pro Street Breakout CVO | CVO | 2017 | |
| Harley Davidson | Softail Standard | Softail | 2021 | |
| Harley Davidson | Softail Standard | Softail | 2020 | |
| Harley Davidson | Softail Standard | Softail | 2021 | |
| Harley Davidson | Softail Standard | Softail | 2022 | |
| Harley Davidson | Softail Standard | Softail | 2023 | |
| Harley Davidson | Softail Standard | Softail | 2024 |
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