2011 Cadillac STS Thermostats

Genuine GM thermostats for the 2011 Cadillac STS, at wholesale prices. The opening temperature is matched to the engine calibration, so an off-spec thermostat sets codes without failing outright. Sigma platform rear-drive sedan, offered with the Northstar V8 and in supercharged STS-V form.

When you need them

Slow warm-up, a low temperature gauge, or poor heater output. On a full-size car, turbocharged and naturally aspirated cars share a badge and little else in this group.

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.

Getting the right part

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.