GMC Sierra 2500 Engine Coolant Thermostat Replacement

Replaces THN1017 With jiggle-pin; With off-set valve seat; With leak holes on the bypass valve; Gasket included Opening Temp: 86 C / 187 F OEM Recommended With OE No. 12600171

187 Degrees F Includes Seal with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature

180 Degrees F Includes Seal with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option

160 Degrees F Includes Seal with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option

187 Degrees F Includes Seal with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature

Excludes Housing; 186 Degree; OE Temperature; Seal included

187 Degrees F Includes Seal with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature ; "The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating."

With jiggle-pin; With off-set valve seat; With leak holes on the bypass valve; Gasket included Opening Temp: 71 C / 160 F Aftermarket Alternative

With jiggle-pin; With off-set valve seat; With leak holes on the bypass valve; Gasket included Opening Temp: 82 C / 180 F Aftermarket Alternative

With integrated housing thermostat; Gasket Included Opening Temp: 71 C / 160 F Aftermarket Alternative

W/Original Equipment or Most Aftermarket Water Pumps; 186 Degree; OE Temperature; Seal included

Includes Housing; 187 Degree; OE Temperature; Seal included