2010 Hummer H3T Thermostats

Genuine GM thermostats for the 2010 Hummer H3T, at wholesale prices. The opening temperature is matched to the engine calibration, so an off-spec thermostat sets codes without failing outright. Four-door pickup version of the H3, built for only two model years.

Symptoms to look for

Slow warm-up, a low temperature gauge, or poor heater output. On a mid-size pickup, single or dual rear wheels, gas or diesel, and cab configuration divide this group more than the model year does.

Why order factory

• We catch the wrong part before you do. VIN verification is free on every thermostats order.
• Fast out the door. In stock thermostats ship within hours, not days, from Dallas.
• No hassle returns. If the thermostats is not right, send it back.
• Warranty intact. OEM thermostats keep coverage that an aftermarket part can void.
• Wholesale pricing. Most thermostats numbers land well below dealer list.

Ordering correctly

Materials and coatings are specified, not approximated, which is why factory parts last through more heat cycles. Check the VIN before ordering anything that has to bolt to something else. Shipping is calculated on real weight and distance, which usually beats a padded flat rate.