Genuine GM thermostat pair for 6.5 with dual stats 190°f

Fits ONLY 97 up 6.5 and ALL with dual thermostat configuration upgrade. These are the OE thermostats rated 88°c or 190°f. Best heater performance in cold weather and flow equal to the Robertshaw stats. This is what I always ran in my ’96 as I prefer warm yet stable temps.