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Chevrolet Silverado 4500 HD Thermostats

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448-180 Thermostat
Part Number: MRD448-180
Vehicle Info Required to Guarantee Fit
$13.99
Product Details
Location : RearQuantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 180 DegreesRecommended Use : OE Replacement
447-185 Thermostat
Part Number: MRD447-185
Vehicle Info Required to Guarantee Fit
$16.99
Product Details
Location : FrontQuantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 185 degreesRecommended Use : OE Replacement
131-197 GM Original Equipment Series Thermostat
Part Number: AC131197
Vehicle Info Required to Guarantee Fit
$23.49
Product Details
Quantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 85 degrees CSeries : GM Original Equipment SeriesMaterial : SteelRecommended Use : OE Replacement
12T99D Professional Series Thermostat
Part Number: AC12T99D
Vehicle Info Required to Guarantee Fit
$30.49
Product Details
Location : FrontNotes : Includes seal; OEM recommended temperature; StandardQuantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 85 degrees CSeries : Professional SeriesMaterial : Stainless SteelRecommended Use : OE Replacement
447448 Thermostat
Part Number: MRD447448
Vehicle Info Required to Guarantee Fit
$36.49
Product Details
Quantity Sold : Set of 2Warranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 180 and 185 degrees FRecommended Use : OE Replacement
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448-180 Thermostat
Part No: MRD448-180
( Review)
$13.99

Helpful Automotive Resources

What Does It Mean When the Engine Is Hot While the AC Is Off?
What Does It Mean When the Engine Is Hot While the AC Is Off?Sometimes your engine heats up and reaches critical temperatures when you’re driving. Normally, turning off the air conditioning would help in this scenario, but what if your engine overheats even if you haven’t turned on the AC? Engine Hot, AC Off: What Does That Mean?
What Does Check Gauges Mean?
What Does Check Gauges Mean?A modern vehicle is equipped with several sensors that help monitor the condition of some of its most critical components. These sensors send their data to the powertrain control module (PCM). The PCM then alerts the driver accordingly through the instrument panel cluster. One example of a warning light is
Where Is the Thermostat Located?
Where Is the Thermostat Located?A: The thermostat is one of the most important components of a vehicle’s cooling system. Responsible for regulating coolant flow, it makes sure that the engine doesn’t overheat and stays within the normal operating temperature.