Temperature Sender Switch for after run electrical coolant pump on Turbo Diesel Vanagon

This is the termperature sender switch that turns on the after run electrical coolant pump for the Turbo Diesel Vanagon.  The original Turbo Diesel T25 (Vanagon) has an electrical coolant pump that should come on when the coolant temperature goes over 104C (219F).  This is to help cool down the engine and the Turbo after long highway runs or runs around town where the Turbo is getting hot.  This sending unit is located on the coolant flange on the cylinder head.