Milwaukee Twins Clutch Nut Kit For Harley Big Twin The Milwaukee Twins Clutch Nut Kit comes complete with all necessary components for a straightforward installation, including the nut, seal, and lock tabs. Engineered for 1941 to early 1984 Big Twin models, it is a perfect match for OEM parts to guarantee a flawless fit and reliable function. Formerly offered under the J&P Cycles brand. Features: Kit includes nut seal and lock tabs for 1941-E84 Big Twin Replaces OEM 37496-41 / 37496-65