S&S Cycle 2018+ M8 Softail Models MK-Series Crankcase Assembly
Regular price
$2,414.03 USD
Regular price
-15%
$2,849.95 USD
Sale price
$2,414.03 USD
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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!
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Building massive power reliably just got easier! Our new MK-Series B Crankcases can be paired with our 136" cylinder kit and 4 5/8" Stroker Crank to give you a rock-solid build. These cases scrape more oil than the stock ones, have a large volume sump, and fit in a stock frame without modification.
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 |
| 2018-2023 | Harley-Davidson | FLFBS Fat Boy 114 | Base |
| 2018-2021 | Harley-Davidson | FLHC Heritage Classic 107 | Base |
| 2018-2024 | Harley-Davidson | FLHCS Heritage Classic 114 | Base |
| 2018,2020-2021 | Harley-Davidson | FLSB Sport Glide 107 | Base |
| 2018,2020-2021 | Harley-Davidson | FLSL Softail Slim 107 | Base |
| 2025 | Harley-Davidson | FLSTFI Fat Boy Gray Ghost | 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 |