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GMC I1500 Thermostats

Keeping your I1500 in top shape is your top priority.

Obviously, you bought your I1500 because you wanted to buy horsepower and rugged design both impeccably combined into one car, truck, or SUV. GMC car, truck, or SUV owners have come to expect a certain level of dependability when driving their I1500 around town. You purchased your I1500 because its reliability and longevity appealed to your senses; so why would you settle for second best when it comes to great quality auto parts? Your GMC dealership isn't the only place to find the highest quality repair parts to fix your I1500.

The function and purpose of Thermostats.

Your car or truck has a liquid-cooled engine, 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; bypassing the flow of coolant through your radiator. This cycles the coolant through the engine block and gets it hot. Once it reaches an optimal operating temperature, your GMC I1500 thermostat responds by directing coolant to the radiator. Now your coolant gets cooled as it recirculates through your GMC I1500 engine; keeping it at a steady and controlled temperature determined for the engine to achieve the best balance between power, fuel efficiency, and emissions... all thanks to the thermostat.

Don't wait another day... buy your replacements right now.

Select Your YearGet your I1500 back on the road with the highest quality replacement parts from the experts at Car Parts Discount. At Car Parts Discount, we have real customer support agents here with enough expertise to help you buy the appropriate GMC I1500 part for your project or repair. Make all your future car parts purchases at carpartsdiscount.com and save time and money on all your upcoming repairs. All the GMC I1500 Thermostats parts on this page will fit vehicles made in 1966. Choose your year below to refine your search.

Select Your Year

GMC I1500 Engine Coolant Thermostat, OEM: 45356
Stant Engine Coolant Thermostat 45356
4.65, Save 40%   POPULAR
OEM: 45356, Item: 383797
10 or More In Stock, Usually ships within 1 business day

GMC I1500, 4.1L 4098CC 250Cu. In. L6
GMC I1500 Engine Coolant Thermostat, OEM: 45358
Stant Engine Coolant Thermostat 45358
4.55, Save 40%   POPULAR
OEM: 45358, Item: 383798
10 or More In Stock, Usually ships within 1 business day

GMC I1500, 4.1L 4098CC 250Cu. In. L6
GMC I1500 Engine Coolant Thermostat, OEM: 45359
Stant Engine Coolant Thermostat 45359
4.65, Save 40%   POPULAR
OEM: 45359, Item: 383799
10 or More In Stock, Usually ships within 1 business day

GMC I1500, 4.1L 4098CC 250Cu. In. L6
GMC I1500 Engine Coolant Thermostat, OEM: 13006
Stant Engine Coolant Thermostat 13006
2.05, Save 39%   NEW ITEM
OEM: 13006, Item: 383490
10 or More In Stock, Usually ships within 1 business day

GMC I1500, 4.1L 4098CC 250Cu. In. L6
GMC I1500 Engine Coolant Thermostat, OEM: 13358
Stant Engine Coolant Thermostat 13358
3.55, Save 39%   NEW ITEM
OEM: 13358, Item: 383501
10 or More In Stock, Usually ships within 1 business day

GMC I1500, 4.1L 4098CC 250Cu. In. L6
GMC I1500 Gates Engine Coolant Thermostat, OEM: 33009S
Gates Engine Coolant Thermostat
5.15, Save 40%   NEW ITEM
OEM: 33009S, Item: 242849
10 or More In Stock, Usually ships within 1 business day

GMC I1500, 4.1L 4098CC 250Cu. In. L6
GMC I1500 Engine Coolant Thermostat, OEM: 13359
Stant Engine Coolant Thermostat 13359
3.35, Save 40%   NEW ITEM
OEM: 13359, Item: 383502
10 or More In Stock, Usually ships within 1 business day

GMC I1500, 4.1L 4098CC 250Cu. In. L6
GMC I1500 Engine Coolant Thermostat, OEM: 13008
Stant Engine Coolant Thermostat 13008
2.05, Save 39%  
OEM: 13008, Item: 383491
10 or More In Stock, Usually ships within 1 business day

GMC I1500, 4.1L 4098CC 250Cu. In. L6
GMC I1500 Engine Coolant Thermostat, OEM: 13009
Stant Engine Coolant Thermostat 13009
2.05, Save 39%   NEW ITEM
OEM: 13009, Item: 383492
10 or More In Stock, Usually ships within 1 business day

GMC I1500, 4.1L 4098CC 250Cu. In. L6
GMC I1500 Engine Coolant Thermostat, OEM: 13352
Stant Engine Coolant Thermostat 13352
3.55, Save 39%   NEW ITEM
OEM: 13352, Item: 383499
10 or More In Stock, Usually ships within 1 business day

GMC I1500, 4.1L 4098CC 250Cu. In. L6