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GMC Sierra 2500 Thermostats

Why you drive your Sierra 2500.

When your GMC Sierra 2500 was born, it was destined for a person with discerning taste who values longevity in their automobile. While it may not be difficult to buy replacement parts for GMC vehicles, these days the necessity for nothing but the absolute best are required to maintain your automobile. GMC automobile owners have grown accustomed to a certain level of reliability when driving their Sierra 2500 around town. You picked your Sierra 2500 because its reliability and longevity struck a chord inside you; so why would you settle for anything but the best when it comes to superior quality auto parts?

The function and purpose of Thermostats.

Your car or truck has a liquid-cooled engine, 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 ideal temperature, your GMC Sierra 2500 thermostat then opens up and allows the coolant into the radiator. Now your coolant is part of a constant cycle in your GMC Sierra 2500 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.

High quality parts, bargain prices, experienced automotive professionals.

Select Your YearDon't let a broken Thermostats spell the end of your car, truck, or SUV, and don't gamble with its condition by using anything but the highest quality repair parts. Make all your future car parts purchases at carpartsdiscount.com and realize incredible savings on all your upcoming repairs. Ordering new GMC parts from www.carpartsdiscount.com means you are paying the lowest prices for the most superior original and aftermarket replacement Sierra 2500 parts on the internet. Need 2004, 2003, 2002, 2001, 2000, 1999 GMC Sierra 2500 Thermostats parts? We've got them right here.

Select Your Year

GMC Sierra 2500 Engine Coolant Thermostat, OEM: 12T121D
ACDelco Engine Coolant Thermostat 12T121D
16.59, Save 49%   NEW ITEM POPULAR
OEM: 12T121D, Item: 885144
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500
GMC Sierra 2500 Engine Coolant Thermostat / Water Inlet Assembly, OEM: 15-10412/1510412
ACDelco Engine Coolant Thermostat / Water Inlet Assembly 15-10412
37.45, Save 39%   NEW ITEM
OEM: 15-10412, Item: 885351
3 In Stock, Usually ships within 1 business day

GMC Sierra 2500, 5.3L 5328CC 325Cu. In. V8
GMC Sierra 2500, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 Engine Coolant Thermostat, OEM: 14298
Stant Engine Coolant Thermostat 14298
16.35, Save 39%   NEW ITEM
OEM: 14298, Item: 383610
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500, 5.3L 5328CC 323Cu. In. V8
GMC Sierra 2500, 5.3L 5328CC 325Cu. In. V8
GMC Sierra 2500, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 Engine Coolant Thermostat, OEM: 131-156/131156
ACDelco Engine Coolant Thermostat 131-156
18.25, Save 39%   NEW ITEM
OEM: 131-156, Item: 887733
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 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 2500, 5.3L 5328CC 323Cu. In. V8
GMC Sierra 2500, 5.3L 5328CC 325Cu. In. V8
GMC Sierra 2500, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 Thermostat, 82C / 180F, OEM: 812571261082
Motorad Thermostat, 82C / 180F 812571261082
18.65, Save 39%   NEW ITEM
OEM: 812571261082, Item: 90070
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500
GMC Sierra 2500 Engine Coolant Thermostat, OEM: 12T84D
ACDelco Engine Coolant Thermostat 12T84D
18.15, Save 39%   NEW ITEM
OEM: 12T84D, Item: 885191
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500
GMC Sierra 2500 Engine Coolant Thermostat / Water Inlet Assembly, OEM: 15-11057/1511057
ACDelco Engine Coolant Thermostat / Water Inlet Assembly 15-11057
37.55, Save 39%   NEW ITEM
OEM: 15-11057, Item: 885406
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500, 5.3L 5328CC 325Cu. In. V8
GMC Sierra 2500, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 Engine Coolant Thermostat/Water Outlet Assembly, OEM: 85580
Four Seasons Engine Coolant Thermostat/Water Outlet Assembly 85580
19.25, Save 39%   NEW ITEM
OEM: 85580, Item: 1021793
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500
GMC Sierra 2500 Engine Coolant Thermostat, OEM: 34702
Gates Engine Coolant Thermostat 34702
34.25, Save 39%   NEW ITEM
OEM: 34702, Item: 1159563
5 In Stock, Usually ships within 1-2 business days

GMC Sierra 2500, 5.3L 5328CC 325Cu. In. V8
GMC Sierra 2500, 6.0L 5967CC 364Cu. In. V8