Car PartsGMC PartsGMC Sierra 1500 HD PartsGMC Sierra 1500 HD Thermostats

GMC Sierra 1500 HD Thermostats

Great cars and trucks like your Sierra 1500 HD need great parts.

Your GMC dealership isn't the only place to buy the best replacement parts for your Sierra 1500 HD. Anyone who operates a GMC knows that when it comes to maintaining their vehicle only the highest quality replacement parts will do. You picked your Sierra 1500 HD because its reliability and trusted quality appealed to your senses; so why would you settle for anything but the best when it comes to great quality auto parts? Auto enthusiasts know that a brand you can trust is built into each GMC, and understand that only the best repair Sierra 1500 HD parts will suffice when repairs are needed.

Why Thermostats replacement is so important.

Your car or truck has a water-cooled motor, and its thermostat keeps the coolant flowing in the right direction so that your engine can maintain a constant and ideal operating temperature. On start-up, the thermostat remains closed; shutting off access to the radiator. This cycles the coolant through the engine block and gets it hot. Once it reaches an ideal temperature, your GMC Sierra 1500 HD thermostat responds by directing coolant to the radiator. Now your coolant gets cooled as it recirculates through your GMC Sierra 1500 HD engine; keeping it within a specific range of temperatures that are determined for the engine to achieve the best balance between power, fuel efficiency, and emissions... all thanks to the thermostat.

Good products, great prices, the best people.

Select Your YearAt Car Parts Discount, we have live customer service members here with enough expertise to help you purchase the appropriate GMC Sierra 1500 HD part for your needs. Bring your Sierra 1500 HD back to life with the best new or rebuilt parts from the experts at Car Parts Discount. Trust in the value of the parts you get from carpartsdiscount.com and realize incredible savings on all your upcoming repairs. All the GMC Sierra 1500 HD Thermostats parts on this page will fit vehicles made in 2006, 2005, 2003, 2002, 2001. Choose your year below to refine your search.

Select Your Year

GMC Sierra 1500 HD Engine Coolant Thermostat, OEM: 14298
Stant Engine Coolant Thermostat 14298
16.35, Save 39%  
OEM: 14298, Item: 383610
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 1500 HD, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 1500 HD Gates Engine Coolant Thermostat/Water Outlet Assembly, OEM: 33910
Gates Engine Coolant Thermostat/Water Outlet Assembly
16.25, Save 39%   NEW ITEM
OEM: 33910, Item: 243053
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 1500 HD, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 1500 HD Engine Coolant Thermostat, OEM: 14948
Stant Engine Coolant Thermostat 14948
5.75, Save 40%  
OEM: 14948, Item: 383664
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 1500 HD, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 1500 HD Gates Engine Coolant Thermostat, OEM: 33963
Gates Engine Coolant Thermostat
6.35, Save 40%   NEW ITEM
OEM: 33963, Item: 242961
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 1500 HD, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 1500 HD Engine Coolant Thermostat, OEM: 34702
Gates Engine Coolant Thermostat 34702
38.45, Save 39%   NEW ITEM
OEM: 34702, Item: 534939
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 1500 HD, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 1500 HD Thermostat, 82C / 180F, OEM: 812571261082
Motorad Thermostat, 82C / 180F 812571261082
22.75, Save 25%   NEW ITEM
OEM: 812571261082, Item: 90070
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 1500 HD
GMC Sierra 1500 HD Water Outlet, OEM: 85580
Four Seasons Water Outlet 85580
25.85, Save 39%   NEW ITEM
OEM: 85580, Item: 610964
4 In Stock, Usually ships within 1-2 business days

GMC Sierra 1500 HD
ACDelco Engine Coolant Thermostat 131-156
18.25, Save 39%   NEW ITEM
OEM: 131-156, Item: 692580
8 In Stock, Usually ships within 1 business day

GMC Sierra 1500 HD
ACDelco Engine Coolant Thermostat 12T84D
18.15, Save 39%   NEW ITEM
OEM: 12T84D, Item: 697956
3 In Stock, Usually ships within 1 business day

GMC Sierra 1500 HD
ACDelco Engine Coolant Thermostat 12T121D
19.95, Save 39%   NEW ITEM
OEM: 12T121D, Item: 692565
4 In Stock, Usually ships within 1 business day

GMC Sierra 1500 HD