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GMC Sierra 3500 HD Thermostats

Keeping your Sierra 3500 HD in top shape is your top priority.

Select Your VehicleAuto enthusiasts know that strong looks is built into each GMC, and understand that only the highest quality repair Sierra 3500 HD parts will suffice when your car or truck needs fixing. The vehicle in your driveway is head and shoulders above the rest when it comes to all the cars, trucks, and SUVs on the road today. You picked your Sierra 3500 HD because its dependability and longevity struck a chord inside you; so why would you settle for second rate when it comes to great quality auto parts? When your GMC Sierra 3500 HD left the factory, it was destined for a driver who values trusted quality in their automobile.

The function and purpose of Thermostats.

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 optimal operating temperature, your GMC Sierra 3500 HD thermostat responds by directing coolant to the radiator. Now your coolant is part of a constant cycle in your GMC Sierra 3500 HD 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.

Good products, bargain prices, the best people.

At Car Parts Discount, we have real customer support agents available with enough expertise to help you buy the correct GMC Sierra 3500 HD part for your needs. Bring your Sierra 3500 HD back to life with the highest quality replacement parts from the experts at Car Parts Discount. Buying new GMC parts from www.carpartsdiscount.com means you are taking advantage of the most superior original and aftermarket replacement Sierra 3500 HD parts on the internet. All the GMC Sierra 3500 HD Thermostats parts on this page will fit vehicles made in 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007. Choose your year below to refine your search.

Info: Select your make and model in the red title bar above so we can show the parts you need.
GMC Sierra 3500 HD Engine Coolant Thermostat, OEM: 34198Gates
2007-2012, 2016-2018 GMC Sierra 3500 HD Gates Engine Coolant Thermostat 34198
6.65, Save 40%   NEW ITEM
OEM: 34198, Item: 675485
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC Sierra 3500 HD Engine Coolant Thermostat, OEM: 15158Stant
2007-2017 GMC Sierra 3500 HD Stant Engine Coolant Thermostat 15158
15.85, Save 39%   NEW ITEM
OEM: 15158, Item: 1201368
  In Stock, Usually ships within 1 business day
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GMC Sierra 3500 HD Engine Coolant Thermostat, OEM: 447-185/447185Motorad
2007-2016 GMC Sierra 3500 HD Motorad Engine Coolant Thermostat 447-185
16.05, Save 39%   NEW ITEM
OEM: 447-185, Item: 1407373
  Only 4 left In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Front

GMC Sierra 3500 HD Engine Coolant Thermostat, OEM: 448-180/448180Motorad
2007-2017 GMC Sierra 3500 HD Motorad Engine Coolant Thermostat 448-180
16.45, Save 39%   NEW ITEM
OEM: 448-180, Item: 1407374
  Only 2 left In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Rear

GMC Sierra 3500 HD Engine Coolant Thermostat, OEM: 523-190/523190Motorad
2007-2017 GMC Sierra 3500 HD Motorad Engine Coolant Thermostat 523-190
17.75, Save 39%   NEW ITEM
OEM: 523-190, Item: 1405103
  Only 7 left In Stock, Usually ships within 1 business day
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GMC Sierra 3500 HD Engine Coolant Thermostat, OEM: 33946Gates
2007-2016 GMC Sierra 3500 HD Gates Engine Coolant Thermostat 33946
17.95, Save 39%   NEW ITEM
OEM: 33946, Item: 1451158
  In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Front

GMC Sierra 3500 HD Engine Coolant Thermostat, OEM: 33947Gates
2007-2016 GMC Sierra 3500 HD Gates Engine Coolant Thermostat 33947
18.55, Save 39%   NEW ITEM
OEM: 33947, Item: 621070
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear

GMC Sierra 3500 HD Engine Coolant Thermostat, OEM: 12T99DACDelco
2007-2016 GMC Sierra 3500 HD ACDelco Engine Coolant Thermostat 12T99D
19.75, Save 39%   NEW ITEM
OEM: 12T99D, Item: 885195
  In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Front

GMC Sierra 3500 HD Engine Coolant Thermostat, OEM: 12T100DACDelco
2007-2017 GMC Sierra 3500 HD ACDelco Engine Coolant Thermostat 12T100D
19.85, Save 39%  
OEM: 12T100D, Item: 885138
  In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Rear

Motorad
2007-2013, 2016-2017 GMC Sierra 3500 HD Motorad Engine Coolant Thermostat 447448
30.85, Save 39%   NEW ITEM
OEM: 447448, Item: 1405076
  Only 9 left In Stock, Usually ships within 1 business day
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GMC Sierra 3500 HD Engine Coolant Thermostat Kit, OEM: 131-160/131160ACDelco
2007-2018 GMC Sierra 3500 HD ACDelco Engine Coolant Thermostat Kit 131-160
34.15, Save 39%   POPULAR
OEM: 131-160, Item: 887735
  In Stock, Usually ships within 1 business day
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ACDelco
2007-2018 GMC Sierra 3500 HD ACDelco Engine Coolant Thermostat Kit 131-131
34.25, Save 39%   NEW ITEM
OEM: 131-131, Item: 887727
  In Stock, Usually ships within 1 business day
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ACDelco
2007-2018 GMC Sierra 3500 HD ACDelco Engine Coolant Thermostat Kit 131-163
39.15, Save 39%   NEW ITEM
OEM: 131-163, Item: 887736
  In Stock, Usually ships within 1 business day
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GMC Sierra 3500 HD Engine Coolant Thermostat, OEM: MMTS-VET-05/MMTSVET05Mishimoto
2007, 2011, 2015 GMC Sierra 3500 HD Mishimoto Engine Coolant Thermostat MMTS-VET-05
Add for Price, Save 36%   NEW ITEM
OEM: MMTS-VET-05, Item: 1339168
  Only 7 left In Stock, Usually ships within 1-2 business days
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Mishimoto
2007 GMC Sierra 3500 HD Mishimoto Engine Coolant Thermostat MMTS-CHV-01DH
Add for Price, Save 36%   NEW ITEM
OEM: MMTS-CHV-01DH, Item: 1335238
  In Stock, Usually ships within 1-2 business days
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GMC Sierra 3500 HD Engine Coolant Thermostat, OEM: MMTS-CHV-01DL/MMTSCHV01DLMishimoto
2007 GMC Sierra 3500 HD Mishimoto Engine Coolant Thermostat MMTS-CHV-01DL
Add for Price, Save 36%   NEW ITEM
OEM: MMTS-CHV-01DL, Item: 1335237
  In Stock, Usually ships within 1-2 business days
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