Swivel Thermostat with -16AN and Hose End FittingApplication: All K series engines K Tuned Swivel Neck Thermostat We have updated the design of our popular Swivel Neck Thermostat Housing to use an OEM style thermostat which will maintain the factory cooling recirculation port. The OEM styles T Stat will close off the recirculation port when the thermostat opens. We also have included two rad fittings, the standard 1. 25" hose outlet and an optional 16AN hose outlet. Swapping out to different temp