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GMC Sierra 3500 HD Thermostat

We have 3 Items In-stock. Select a year to continue.
$34.08 List Price $53.30 Save $19.22 Availability: In Stock
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STANT BYPASS STYLE THERMOSTAT -- 185%XB0 F, A High Quality, Direct Fit OE Replacement, Uses A Bypass System To Speed Engine Warm-Up, Allows The Coolant To Circulate Through The Engine By Way Of Bypass Canal Located Directly Below The Thermostat
  • SKU#: ST14728
  • Brand: Stant
  • Anticipated Ship Out Time: Same day - 1 business day
Fits the following GMC Sierra 3500 HD Years:
  • 2011-2012 | 8 Cyl 6.6L | Denali
  • 2010-2012 | 8 Cyl 6.6L | SLE, SLT, WT
$15.30 List Price $18.05 Save $2.75 Availability: In Stock
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Gates Thermostat

Notes: Reverse poppet, With Jiggle Pin

When it's time to replace your thermostat, make sure to use a reliable Gates OE quality thermostat. It constantly monitors the temperature of the system and regulates coolant flow through the radiator. It operates many times each day during driving thus the Gates thermostat is manufactured to toughest construction. This thermostat helps speed engine warm-up and regulates the engine's operating temperature, which results in good fuel economy, lower emissions, better engine performance and longer engine life.

  • SKU#: GAT34198
  • Brand: Gates
Fits the following GMC Sierra 3500 HD Years:
  • 2011-2012 | 8 Cyl 6.0L | Denali
  • 2010-2012 | 8 Cyl 6.0L | SLE, SLT, WT
(see more)
$72.00 List Price $90.00 Save $18.00 Availability: In Stock
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If you have a highly modified or race vehicle, you probably want a racing thermostat by Mishimoto. It will open up faster than your stock thermostat, letting the coolant flow before your engine’s too hot – and that might be the difference between first and second. Mishimoto, a well-respected leader in aftermarket cooling systems, designs and manufactures the some of the best cooling products money can buy – whether you’re talking daily drivers, muscle cars or sophisticated race vehicles.

  • Opens up at lower levels than other thermostats for more efficient cooling
  • Backed by an impressive lifetime warranty
  • Gets rid of excess heat created in highly modified/race vehicles
  • Protects critical components from overheating
  • Fit by year, make and model of vehicle
  • Includes new rubber gaskets to prevent leaks
  • More efficient than standard thermostats
  • Brand: Mishimoto
  • Fit Note: Low Activation Temp
  • Anticipated Ship Out Time: 1-2 Business Days
  • Flow Rate: Standard Flow
  • Notes: Gasket not included
  • Opening Temperature Rating: 174 Degrees; 180 Degrees
  • Warranty: Mishimoto Limited Lifetime Warranty
Fits the following GMC Sierra 3500 HD Years:
  • 2011-2013 | 8 Cyl 6.6L | Denali
  • 2007-2013 | 8 Cyl 6.6L | SLE, SLT, WT