Car PartsGMC PartsGMC K25 PartsGMC K25 Thermostats

GMC K25 Thermostats

Great cars and trucks like your K25 need great parts.

You bought your K25 because its dependability and trusted quality appealed to your senses; so why would you settle for second rate when it comes to great quality auto parts? Auto enthusiasts appreciate the a brand you can trust built into each GMC, and understand that only the best repair K25 parts will suffice when maintenance needs to be done. Anyone who operates a GMC knows that when it comes to maintaining their vehicle only the most superior replacement parts will do. It's not every day that you discover you need a replacement Thermostats to fix your car or truck.

Don't go too long without fixing your Thermostats... here's why.

Your car or truck has a water-cooled motor, and the device that controls the flow of coolant so that the engine can remain cool is your thermostat. On start-up, the thermostat remains closed; shutting off access to the radiator. This gets the coolant hot so that the engine warms up. Once it reaches an optimal operating temperature, your GMC K25 thermostat then opens up and allows the coolant into the radiator. Now your coolant is part of a constant cycle in your GMC K25 engine that keeps 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.

What we have to offer.

Select Your YearOrdering new GMC parts from www.carpartsdiscount.com means you are taking advantage of the most superior original and aftermarket replacement K25 parts on the internet. Don't let a Thermostats repair spell the end of your car, truck, or SUV, and don't gamble with its condition by installing anything but the best replacement parts. At Car Parts Discount, we have live customer service members on the phone with enough expertise to help you purchase the correct GMC K25 part for your project or repair. All the GMC K25 Thermostats parts on this page will fit vehicles made in 1978, 1977, 1976, 1975. Choose your year below to refine your search.

Select Your Year

GMC K25 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 K25, 4.1L 4098CC 250Cu. In. L6
GMC K25, 4.8L 4801CC 292Cu. In. L6
GMC K25, 5.0L 4999CC 305Cu. In. V8
GMC K25, 5.7L 5735CC 350Cu. In. V8
GMC K25, 6.6L 6555CC 400Cu. In. V8
GMC K25, 7.4L 7441CC 454Cu. In. V8
GMC K25 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 K25, 4.1L 4098CC 250Cu. In. L6
GMC K25, 4.8L 4801CC 292Cu. In. L6
GMC K25, 5.0L 4999CC 305Cu. In. V8
GMC K25, 5.7L 5735CC 350Cu. In. V8
GMC K25, 6.6L 6555CC 400Cu. In. V8
GMC K25, 7.4L 7441CC 454Cu. In. V8
GMC K25 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 K25, 4.1L 4098CC 250Cu. In. L6
GMC K25, 4.8L 4801CC 292Cu. In. L6
GMC K25, 5.0L 4999CC 305Cu. In. V8
GMC K25, 5.7L 5735CC 350Cu. In. V8
GMC K25, 6.6L 6555CC 400Cu. In. V8
GMC K25, 7.4L 7441CC 454Cu. In. V8
GMC K25 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 K25, 4.1L 4098CC 250Cu. In. L6
GMC K25, 4.8L 4801CC 292Cu. In. L6
GMC K25, 5.0L 4999CC 305Cu. In. V8
GMC K25, 5.7L 5735CC 350Cu. In. V8
GMC K25, 6.6L 6555CC 400Cu. In. V8
GMC K25, 7.4L 7441CC 454Cu. In. V8
GMC K25 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 K25, 4.1L 4098CC 250Cu. In. L6
GMC K25, 4.8L 4801CC 292Cu. In. L6
GMC K25, 5.0L 4999CC 305Cu. In. V8
GMC K25, 5.7L 5735CC 350Cu. In. V8
GMC K25, 6.6L 6555CC 400Cu. In. V8
GMC K25, 7.4L 7441CC 454Cu. In. V8
GMC K25 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 K25, 4.1L 4098CC 250Cu. In. L6
GMC K25, 4.8L 4801CC 292Cu. In. L6
GMC K25, 5.0L 4999CC 305Cu. In. V8
GMC K25, 5.7L 5735CC 350Cu. In. V8
GMC K25, 6.6L 6555CC 400Cu. In. V8
GMC K25, 7.4L 7441CC 454Cu. In. V8
GMC K25 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 K25, 4.1L 4098CC 250Cu. In. L6
GMC K25, 4.8L 4801CC 292Cu. In. L6
GMC K25, 5.0L 4999CC 305Cu. In. V8
GMC K25, 5.7L 5735CC 350Cu. In. V8
GMC K25, 6.6L 6555CC 400Cu. In. V8
GMC K25, 7.4L 7441CC 454Cu. In. V8
GMC K25 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 K25, 4.1L 4098CC 250Cu. In. L6
GMC K25, 4.8L 4801CC 292Cu. In. L6
GMC K25, 5.0L 4999CC 305Cu. In. V8
GMC K25, 5.7L 5735CC 350Cu. In. V8
GMC K25, 6.6L 6555CC 400Cu. In. V8
GMC K25, 7.4L 7441CC 454Cu. In. V8
GMC K25 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 K25, 4.1L 4098CC 250Cu. In. L6
GMC K25, 4.8L 4801CC 292Cu. In. L6
GMC K25, 5.0L 4999CC 305Cu. In. V8
GMC K25, 5.7L 5735CC 350Cu. In. V8
GMC K25, 6.6L 6555CC 400Cu. In. V8
GMC K25, 7.4L 7441CC 454Cu. In. V8
GMC K25 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 K25, 4.1L 4098CC 250Cu. In. L6
GMC K25, 4.8L 4801CC 292Cu. In. L6
GMC K25, 5.0L 4999CC 305Cu. In. V8
GMC K25, 5.7L 5735CC 350Cu. In. V8
GMC K25, 6.6L 6555CC 400Cu. In. V8
GMC K25, 7.4L 7441CC 454Cu. In. V8