Twin Power 17-Up M8 Primary Case to Engine Gasket Replaces H-D 25700455
Regular price
$49.13
Couldn't load pickup availability
Ready to install and hit the road!
All parts come with the essentials you need for a smooth fit and clear instructions. From performance upgrades to custom styling, unbox and get your ride ready with confidence!
Got questions?
Feel free to get in touch
Ask an expert
Twin Power™ M8 primary case to engine gaskets provide a dependable seal between the engine and primary case, helping prevent fluid transfer or external leaks.
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018-2020 | Harley-Davidson | FLDE Deluxe 107 | Base |
| 2018-2019 | Harley-Davidson | FLFB Fat Boy 107 | Base |
| 2025 | Harley-Davidson | FLFB Fat Boy 117 | Base |
| 2018-2024 | Harley-Davidson | FLFBS Fat Boy 114 | Base |
| 2021 | Harley-Davidson | FLH Electra Glide Revival | Base |
| 2018-2021 | Harley-Davidson | FLHC Heritage Classic 107 | Base |
| 2025 | Harley-Davidson | FLHC Heritage Classic 117 | Base |
| 2018-2024 | Harley-Davidson | FLHCS Heritage Classic 114 | Base |
| 2023 | Harley-Davidson | FLHFB Electra Glide Highway King | Base |
| 2017-2022 | Harley-Davidson | FLHR Road King | Base |
| 2017-2025 | Harley-Davidson | FLHRXS Road King Special | Base |
| 2019-2022 | Harley-Davidson | FLHT Electra Glide Standard | Base |
| 2017-2019 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | Base |
| 2017-2025 | Harley-Davidson | FLHTCUTG Tri Glide Ultra | Base |
| 2022 | Harley-Davidson | FLHTCUTG Tri Glide Ultra G.I. | Base |
| 2017-2024 | Harley-Davidson | FLHTK Ultra Limited | Base |
| 2017-2019 | Harley-Davidson | FLHTKL Ultra Limited Low | Base |
| 2017-2025 | Harley-Davidson | FLHX Street Glide | Base |
| 2017-2023 | Harley-Davidson | FLHXS Street Glide Special | Base |
| 2022-2023 | Harley-Davidson | FLHXST Street Glide ST | Base |
| 2025 | Harley-Davidson | FLHXU Street Glide Ultra | Base |
| 2024 | Harley-Davidson | FLI Hydra-Glide Revival | Base |
| 2017-2025 | Harley-Davidson | FLRT Freewheeler | Base |
| 2018-2021 | Harley-Davidson | FLSB Sport Glide 107 | Base |
| 2018-2021 | Harley-Davidson | FLSL Softail Slim 107 | Base |
| 2025 | Harley-Davidson | FLSTFI Fat Boy Gray Ghost | Base |
| 2020-2024 | Harley-Davidson | FLTRK Road Glide Limited | Base |
| 2023-2025 | Harley-Davidson | FLTRT Road Glide 3 | Base |
| 2017-2019 | Harley-Davidson | FLTRU Road Glide Ultra | Base |
| 2017-2025 | Harley-Davidson | FLTRX Road Glide | Base |
| 2017-2023 | Harley-Davidson | FLTRXS Road Glide Special | Base |
| 2022-2023 | Harley-Davidson | FLTRXST Road Glide ST | Base |
| 2024-2025 | Harley-Davidson | FLTRXSTSE CVO Road Glide ST | Base |
| 2018-2020 | Harley-Davidson | FXBB Street Bob 107 | Base |
| 2025 | Harley-Davidson | FXBB Street Bob 117 | Base |
| 2021-2024 | Harley-Davidson | FXBBS Street Bob 114 | Base |
| 2018-2019 | Harley-Davidson | FXBR Breakout 107 | Base |
| 2023-2025 | Harley-Davidson | FXBR Breakout 117 | Base |
| 2018-2020 | Harley-Davidson | FXBRS Breakout 114 | Base |
| 2019-2020 | Harley-Davidson | FXDRS FXDR 114 | Base |
| 2018-2019 | Harley-Davidson | FXFB Fat Bob 107 | Base |
| 2018-2023 | Harley-Davidson | FXFBS Fat Bob 114 | Base |
| 2018-2020 | Harley-Davidson | FXLR Low Rider 107 | Base |
| 2020-2021 | Harley-Davidson | FXLRS Low Rider S 114 | Base |
| 2022-2025 | Harley-Davidson | FXLRS Low Rider S 117 | Base |
| 2022-2025 | Harley-Davidson | FXLRST Low Rider ST 117 | Base |
| 2022 | Harley-Davidson | FXRST Low Rider El Diablo 117 | Base |
| 2020-2024 | Harley-Davidson | FXST Softail Standard 107 | Base |