S&S CYCLE M8 Softail Crankcase — MK-Series, Matte Black – 18-26 Softail

Designed for M8 Softail frames, this case retains stock deck height while increasing oil capacity for demanding builds. ⚙️

Large-volume sump improves oil control and cooling during extended rides.

Features a machined, close-fitting oil scraper for superior oil scraping compared with as-cast stock pieces.

A solid foundation for big-bore engines; pairs with a 136" cylinder kit and a 4 5/8" stroker crank (sold separately).

Made in the USA and ships with a Manufacturers Statement of Origin (MSO) for easy registration. 🇺🇸

Allows installation of larger bore kits, offers improved reliability, and fits into the stock Softail frame.