Combination oil filter housing/oil cooler mounts directly to most 3/4 - 16 thread spin-on filter mounts. Provides efficient oil cooling and fast econ-omical filter changes. Features high efficiency Perf-form HD-X disposable filter cartridges that filter out particulates that are as small as 4 microns, finned aluminum canister housing, stainless steel nut plate and port nut, all necessary seals and three replacement cartridges. Fit all Twin Cam 88® models with carburetors from 1999 to present, Evolution® Big Twins from 1984 thru 1999, and Sportster® models from late 1984 thru 2003 with front-mounted 3/4 -16 thread spin-on oil filters.