S&S MK Series Crankcase Assembly for M-Eight Harley 18-24 Softail Models

• Stock deck height
• Large volume sump
• Machined, close-fitting oil scraper (stock is as cast)
• A solid foundation for building a big-bore engine
• Made in the USA
• Includes Manufacturers Statement of Origin (MSO) document
• Can be paired with a S&S 136" cylinder kit and 4 5/8" stroker crank (sold separately)
• Allows for installation of larger bore kits, scrapes more oil, and offers reliability while fitting into stock Softail frame.

2024 Harley-Davidson Hydra-Glide Revival
2022-2024 Harley-Davidson Softail Low Rider ST FXLRST
2022 Harley-Davidson Softail Low Rider El Diablo FXRST
2020-2024 Harley-Davidson Softail Standard FXST
2020-2024 Harley-Davidson Softail Low Rider S FXLRS
2019-2020 Harley-Davidson FXDR 114
2018-2024 Harley-Davidson Softail Fat Boy 114 FLFBS
2018-2024 Harley-Davidson Softail Street Bob FXBB
2018-2024 Harley-Davidson Softail Heritage Classic 114 FLHCS
2018-2023 Harley-Davidson Softail Fat Bob 114 FXFBS
2018-2021 Harley-Davidson Softail Sport Glide FLSB
2018-2021 Harley-Davidson Softail Slim FLSL
2018-2021 Harley-Davidson Softail Heritage Classic FLHC
2018-2020 Harley-Davidson Softail Breakout 114 FXBRS
2018-2020 Harley-Davidson Softail Deluxe FLDE
2018-2020 Harley-Davidson Softail Low Rider FXLR
2018-2019, 2023-2024 Harley-Davidson Softail Breakout FXBR
2018-2019 Harley-Davidson Softail Fat Bob FXFB
2018-2019 Harley-Davidson Softail Fat Boy FLFB