Thermostat spacer with coolant port

Thermostat Spacer with 3/8" NPT port.
AR438 is a spacer that moves the thermostat up one inch to provide room for a coolant temp sensor. It has a 3/8" NPT port and 3/8" mounting holes which are 3 1/4" C to C. The bottom face of the spacer has an o-ring, so no gasket is required.