2014 GMC Sierra 1500 Thermostats

Genuine GM thermostats for the 2014 GMC Sierra 1500, at wholesale prices. The opening temperature is matched to the engine calibration, so an off-spec thermostat sets codes without failing outright. GMT900 through 2013, K2XX from 2014 to 2018, and the T1XX from 2019 with the CarbonPro bed option.

What sends people here

Slow warm-up, a low temperature gauge, or poor heater output. On a light duty pickup, box length and cab style drive more part number splits here than the engine does.

Why order factory

• VIN verified fitment. We confirm the thermostats number against your vehicle before it ships.
• Same day dispatch. Order thermostats by mid-afternoon and it leaves our warehouse that day.
• Returns without a fight. We would rather fix a thermostats order than argue about it.
• Covered by GM. On thermostats that coverage is worth more than the price gap.
• Real wholesale. The same thermostats your dealer sells, at a fraction over our cost.

Before you order

The factory number ties back to GM engineering records, which is something no aftermarket catalog can offer. Give us the number stamped on the old part and we will trace what it superseded to. Same day shipping on in stock items, direct from one of the largest GM parts warehouses in the country.