Car PartsGMC PartsGMC Sierra 3500 PartsGMC Sierra 3500 Thermostats

GMC Sierra 3500 Thermostats

Great cars and trucks like your Sierra 3500 need great parts.

It's not all the time that you discover you need a replacement Thermostats for your vehicle. While it may not be difficult to buy replacement parts for GMC vehicles, these days only the absolute best are required to repair your automobile. GMC automobile drivers have come to expect a certain level of dependability when driving their Sierra 3500 around town. Make no mistake, you bought your Sierra 3500 because you wanted to buy performance and great value both rolled up into one automobile.

The function and purpose of Thermostats.

Your car or truck uses liquid coolant to maintain a constant temperature in the 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; 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 3500 thermostat responds by directing coolant to the radiator. Now your coolant is part of a constant cycle in your GMC Sierra 3500 engine that keeps it at a steady and controlled temperature ideal for engine performance... all thanks to the thermostat.

The experience this company has to offer.

Select Your YearWhen your GMC needs the best replacement Thermostats, there's no need to trust any store other than the authority, Car Parts Discount. Buy all the car parts you will ever need from carpartsdiscount.com and realize incredible savings on all your upcoming repairs. Get your Sierra 3500 back on the road with the best new or rebuilt parts from the experts at Car Parts Discount. GMC Sierra 3500 Thermostats parts for 2006, 2005, 2004, 2003, 2002, 2001 vehicles are available here... just click your year to find them.

Select Your Year

GMC Sierra 3500 Engine Coolant Thermostat, OEM: 12T55D
ACDelco Engine Coolant Thermostat 12T55D
5.05, Save 39%   NEW ITEM
OEM: 12T55D, Item: 885182
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 3500, 8.1L 8127CC 496Cu. In. V8
GMC Sierra 3500 Engine Coolant Thermostat, OEM: 12T55E
ACDelco Engine Coolant Thermostat 12T55E
5.05, Save 39%   NEW ITEM
OEM: 12T55E, Item: 890430
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 3500, 8.1L 8127CC 496Cu. In. V8
GMC Sierra 3500 Engine Coolant Thermostat, OEM: 12TP13E
ACDelco Engine Coolant Thermostat 12TP13E
6.85, Save 40%   NEW ITEM
OEM: 12TP13E, Item: 890425
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 3500, 8.1L 8127CC 496Cu. In. V8
GMC Sierra 3500 Engine Coolant Thermostat, OEM: 131-121/131121
ACDelco Engine Coolant Thermostat 131-121
11.55, Save 39%   NEW ITEM
OEM: 131-121, Item: 887723
3 In Stock, Usually ships within 1 business day

GMC Sierra 3500, 8.1L 8127CC 496Cu. In. V8
GMC Sierra 3500 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 3500, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 3500 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 3500, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 3500 Engine Coolant Thermostat, OEM: 12T99D
ACDelco Engine Coolant Thermostat 12T99D
19.75, Save 39%   NEW ITEM
OEM: 12T99D, Item: 885195
1 In Stock, Usually ships within 1 business day

GMC Sierra 3500, 6.6L 6599CC 403Cu. In. V8
GMC Sierra 3500 Engine Coolant Thermostat, OEM: 12T100D
ACDelco Engine Coolant Thermostat 12T100D
19.85, Save 39%   NEW ITEM
OEM: 12T100D, Item: 885138
6 In Stock, Usually ships within 1 business day

GMC Sierra 3500, 6.6L 6599CC 403Cu. In. V8
GMC Sierra 3500 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 3500, 6.0L 5967CC 364Cu. In. V8
ACDelco Engine Coolant Thermostat Kit 131-131
34.25, Save 39%   NEW ITEM
OEM: 131-131, Item: 887727
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 3500, 6.6L 6599CC 403Cu. In. V8