Engineered specifically for 2017-current FLH Milwaukee 8 frames with oil-cooled engines, this side-mount oil cooler installs on the down tube just below the top bar of full-size engine guards. The system features a specially designed dual-pass aluminum heat exchanger equipped with turbulators to maximize heat dissipation, maintaining optimal oil temperatures between 200 and 230 degrees. For protection and aesthetics, the unit is available with a chrome or powder-coated black grill cover that shields the heat exchanger and fans, while a "naked" version without covers is also offered. Note that this design is incompatible with models featuring lower fairings.
The cooling system utilizes sealed waterproof IP68 dual fans capable of producing 220 CFM of airflow, which automatically activate via a thermal switch and waterproof connectors when oil reaches 210 degrees and remain on until the temperature drops to 185 degrees. Installation is simplified by a plug-and-play wiring harness with a relay that connects to the battery under the seat, alongside black nylon-coated stainless steel braided oil lines with AN6 fittings. An L.E.D. indicator light on a black perch mount provides visual confirmation of fan operation, and the package includes a special oil line fitting wrench and detailed instructions.