S&S CycleCrankcase, Assembly, 4-1/2" Bore, Studs Not Installed, Stock Drive Bearing, Packaged, MB Code, WBlack, 2017-up M8 Touring

4-1/2" bore crankcase assembly, MB code, studs not installed, stock drive bearing, WBlack finish. 4.695" spigot bore accepts larger-bore cylinders. Machined close-fitting oil scraper (stock is as-cast), large volume sump, stock deck height, no frame modification needed.