2021 GMC Sierra 1500 Cooling and Climate Controls

Essential 2021 GMC Sierra 1500 Cooling and Climate Controls

ACDelco – GM Original Equipment Expansion Tank Cap (Part No.G1040465619ACD)

GM Original Equipment Expansion Tank Cap

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$17.61
An ACDelco GM Original Equipment Expansion Tank Cap is a spring loaded cap that seals the radiator filler neck or surge tank, and is a GM-recommended replacement for your vehicle’s original component. It maintains pressure on the cooling system while the engine is operating, which raises the boiling point of the engine coolant. It also replenishes the system with coolant from the expansion tank (if equipped) when the engine cools off. This original equipment radiator cap has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors. Get the GM quality you know and trust with ACDelco GM Original Equipment Thermostats and Caps. Stay with the brand of parts your General Motors vehicle came with and get peace of mind that the fit, form, and function is up to the high standards and specifications of General Motors. ACDelco GM Original Equipment Thermostats and Caps are engineered for virtually every model of GM car, light duty truck, and sport utility vehicle.

Product Features:
  • Seal and maintain pressure on the cooling system for vehicle safety
  • Raise the boiling point of the engine coolant to maintain efficiency
  • Fit most models of GM vehicles for expanded coverage
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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ACDelco – GM Original Equipment Expansion Tank Cap (Part No.G1040468277ACD)

GM Original Equipment Expansion Tank Cap

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$12.31
An ACDelco GM Original Equipment Expansion Tank Cap is a spring loaded cap that seals the radiator filler neck or surge tank, and is a GM-recommended replacement for your vehicle’s original component. It maintains pressure on the cooling system while the engine is operating, which raises the boiling point of the engine coolant. It also replenishes the system with coolant from the expansion tank (if equipped) when the engine cools off. This original equipment radiator cap has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors. Get the GM quality you know and trust with ACDelco GM Original Equipment Thermostats and Caps. Stay with the brand of parts your General Motors vehicle came with and get peace of mind that the fit, form, and function is up to the high standards and specifications of General Motors. ACDelco GM Original Equipment Thermostats and Caps are engineered for virtually every model of GM car, light duty truck, and sport utility vehicle.

Product Features:
  • Seal and maintain pressure on the cooling system for vehicle safety
  • Raise the boiling point of the engine coolant to maintain efficiency
  • Fit most models of GM vehicles for expanded coverage
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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ACDelco – A/C Service Valve (Part No.R1129947779ACD)

A/C Service Valve

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$13.13
A/C Service Valve

ACDelco – A/C Service Valve (Part No.R1129578442ACD)

A/C Service Valve

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$10.18
A/C Service Valve

ACDelco – Water Pump Gasket (Part No.G3040310243ACD)

Water Pump Gasket

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$2.68
Water Pump Gasket

Felpro – Engine Water Pump Gasket (Part No.36109)

Engine Water Pump Gasket

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$19.29
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design
  • Manufactured for the sealing repair environment
  • Validated for fit, form, and function
  • Quality that you can trust
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Carquest Premium – Standard Thermostat: With Seal, 187 Degrees (Part No.14948)

Standard Thermostat: With Seal, 187 Degrees

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$18.79
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
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Carquest Premium – Standard Thermostat: 195 Degrees (Part No.13399)

Standard Thermostat: 195 Degrees

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$10.49
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
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Dorman – Help – Air Conditioning Service Port Caps (Part No.54374)

Air Conditioning Service Port Caps

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$7.99
This A/C service valve cap is designed to match the fit and function of the original cap on specified applications, and is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this A/C service valve cap is designed to match the fit and function of the original cap on specified applications
  • Restores functionality – reliable replacement for an original part that is leaking or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – A/C Service Valve Cap (Part No.902-025)

A/C Service Valve Cap

from

$8.99
This A/C service valve cap is designed to match the fit and function of the original cap on specified applications, and is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this A/C service valve cap is designed to match the fit and function of the original cap on specified applications
  • Restores functionality – reliable replacement for an original part that is leaking or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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ACDelco – GM Original Equipment Heating and Air Conditioning Blower Motor (Part No.R2031378979ACD)

GM Original Equipment Heating and Air Conditioning Blower Motor

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$298.15
ACDelco GM Original Equipment Blower Motors and Wheels are electrical motor and fan assemblies that push air through your vehicle’s heating and air conditioning system and are GM-recommended replacements for your vehicle’s original components. These original equipment blower motors and wheel assemblies have been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Permanently lubricated, self-aligning bearings designed for long life and dependable performance
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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ACDelco – GM Original Equipment Heating and Air Conditioning Blower Motor (Part No.R2031578460ACD)

GM Original Equipment Heating and Air Conditioning Blower Motor

from

$185.66
ACDelco GM Original Equipment Blower Motors and Wheels are electrical motor and fan assemblies that push air through your vehicle’s heating and air conditioning system and are GM-recommended replacements for your vehicle’s original components. These original equipment blower motors and wheel assemblies have been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Permanently lubricated, self-aligning bearings designed for long life and dependable performance
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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GM Genuine Parts – Engine Coolant Thermostat Water Inlet Assembly (Part No.15-10412)

Engine Coolant Thermostat Water Inlet Assembly

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$72.99
GM Genuine Parts Engine Coolant Thermostat / Water Inlet Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These engine coolant thermostat / water inlet assemblies contain the engine thermostat and water inlet housing. The engine coolant thermostat controls the flow of coolant through the radiator; enabling the engine to reach and maintain its normal operating temperature. The water inlet housing connects the radiator hoses to the thermostat. For certain applications, the water inlet contains threaded holes or ports for sensors and switches. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:
  • Provides a durable leak-resistant seal
  • Repairs leaking thermostat housings
  • Corrects engine overheating caused by failed thermostat
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • Original equipment parts are designed to work with your GM vehicle safety systems — aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
  • GM regularly updates production and service part designs to integrate new materials and technologies
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Carquest Premium – Engine Coolant Water Outlet (Part No.85083)

Engine Coolant Water Outlet

from

$23.79
Direct-fit replacement for ease of installation

Product Features:
  • Meets and/or exceeds OEM standard
  • Direct-fit replacement for ease of installation
  • 100% leak tested
  • Meets and/or exceeds OEM standard
  • 100% leak tested
  • Direct-fit replacement for ease of installation
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Carquest Premium – Radiator Cap Tester Adapter (Part No.12033)

Radiator Cap Tester Adapter

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$93.99
Tester adapter for the MT-300 cooling system pressure testers. Professional grade test equipment to ensure an automotive cooling system is operating at the correct pressure. Made from high quality materials to ensure durability. Designed to test automotive coolant caps.

Product Features:
  • Machined metal construction
  • Works with MT-300 pressure tester
  • Tests coolant caps
  • Professional quality
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ACDelco – 15-10595 GM Original Equipment Engine Coolant Water Outlet (Part No.G4010349243ACD)

15-10595 GM Original Equipment Engine Coolant Water Outlet

from

$17.99
ACDelco GM Original Equipment Engine Coolant Water Outlets are housings that connect the radiator hoses to the engine, typically housing the engine coolant thermostat. For certain applications, the water outlet contains threaded holes or ports for sensors and switches. These original equipment engine coolant water outlets are GM-recommended replacements for your vehicle’s original components and have been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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Felpro – Engine Coolant Thermostat Housing Seal (Part No.35720)

Engine Coolant Thermostat Housing Seal

from

$4.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Felpro – Multi-Purpose O-Ring (Part No.35710)

Multi-Purpose O-Ring

from

$3.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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ACDelco – 12587397 GM Original Equipment Engine Coolant Water Inlet Seal (Part No.G4030310258ACD)

12587397 GM Original Equipment Engine Coolant Water Inlet Seal

from

$8.72
An ACDelco GM Original Equipment Engine Coolant Water Inlet Seal is a GM-recommended replacement for your vehicle’s original component. It seals and helps prevent coolant from leaking out of cooling system components. This original equipment engine coolant water inlet seal has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Seals and helps prevent coolant from leaking out of cooling system components to maintain the proper engine temperature
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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ACDelco – A/C Hose Seal (Part No.R1038602000ACD)

A/C Hose Seal

from

$16.70
A/C Hose Seal

Carquest Premium – Premium Engine Coolant Temperature Sensor WTA2315 (Part No.WTA2315)

Premium Engine Coolant Temperature Sensor WTA2315

from

$12.79
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.

Product Features:
  • The engine coolant temperature sensor is located anywhere within the engine cooling system and contains a thermistor that changes in resistance value as the thermistors ambient temperature changes. The engine coolant temperature sensor is a primary input
  • Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
  • Thermally conductive grease within the housing providing the most accurate temperature transfer from the engine to the thermistor.
  • Plated brass or aluminum housings to prevent housing corrosion, ensures effective heat distribution to thermal element, and ensure a secure and leak-free thread mount.
  • Computer-Aided Design (CAD), laser scanning and 3D printing “ utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) “ in the connector terminal design process ensures speed-to-market and a precise connector fit guaranteed.
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ACDelco – Engine Coolant Temperature Sensor (Part No.15-51107)

Engine Coolant Temperature Sensor

from

$35.99
ACDelco Professional Engine Coolant Temperature Sensor is a high quality aftermarket replacement component for one or more of the following vehicle systems: HVAC. This premium aftermarket sensor is manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:
  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco
  • Manufactured to meet expectations for fit, form, and function
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Carquest Premium – Coolant Temperature Sensor with Washer (Part No.WTC1922)

Coolant Temperature Sensor with Washer

from

$17.79
Approved materials for increased durability in even the most extreme temperatures. All MotoRad Coolant Temperature Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:
  • 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
  • Thread Sealant and/or O-ring pre-installed on applicable sensors to ensure leak free performance
  • Brass sensor housing precision machined to meet or exceed OE thermal conductivity
  • OE precision matched thermistor position for correct output parameters
  • Extensive product testing includes salt spray, high/low temperature impact, thermal vibration, durability, static electricity, and micro tension, among other tests, to ensure all sensors meet or exceed OEM specifications.
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Delphi – Engine Coolant Temperature Sensor (Part No.TS10076)

Engine Coolant Temperature Sensor

from

$50.99
Delphi temperature sensors are built with the latest OE technology; Delphi temperature sensors use durable, one-piece design; Delphi temperature sensors are impervious to electrical noise and interference.

Product Features:
  • Delphi temperature sensors deliver accurate readings and optimal performance
  • Delphi’s one-piece design and automated production process eliminates internal connectors and failure points
  • Each sensor is electrically insulated to eliminate interference from other components in the vehicle
  • Delphi temperature sensors are impervious to electrical noise and interference
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KAI – A/C Compressor, V6 Engine (Part No.ACP011055)

A/C Compressor, V6 Engine

from

$289.99
New Standard Replacement A/C Compressor, V6 Engine

Product Features:
  • V6 Engine
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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Carquest Standard – Reman Nippondenso 10S17F Compressor w/ Clutch (Part No.DW77362)

Reman Nippondenso 10S17F Compressor w/ Clutch

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$258.99
Carquest Standard compressors offer reliable, long-lasting performance for a leak-free, dependable repair.

Product Features:
  • Built in a TS16949 certified manufacturing environment to ensure consistent quality that meets or exceeds OE specifications for fit, form, function and durability
  • All remanufactured compressors are built using the latest compressor technology available today and using strict remanufacturing processes
  • All units have new seals, O-rings, gaskets and clutch bearings
  • Tested for noise, vibration, durability, vacuum decay and pressure decay to ensure no leaks and longer life
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Carquest Standard – Reman GM HT6 Compressor w/ Clutch (Part No.DW57931)

Reman GM HT6 Compressor w/ Clutch

from

$254.99
Carquest Standard compressors offer reliable, long-lasting performance for a leak-free, dependable repair.

Product Features:
  • Built in a TS16949 certified manufacturing environment to ensure consistent quality that meets or exceeds OE specifications for fit, form, function and durability
  • All remanufactured compressors are built using the latest compressor technology available today and using strict remanufacturing processes
  • All units have new seals, O-rings, gaskets and clutch bearings
  • Tested for noise, vibration, durability, vacuum decay and pressure decay to ensure no leaks and longer life
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Carquest Standard – Reman GM HU6 Compressor w/ Clutch (Part No.DW57901)

Reman GM HU6 Compressor w/ Clutch

from

$272.99
Carquest Standard compressors offer reliable, long-lasting performance for a leak-free, dependable repair.

Product Features:
  • Built in a TS16949 certified manufacturing environment to ensure consistent quality that meets or exceeds OE specifications for fit, form, function and durability
  • All remanufactured compressors are built using the latest compressor technology available today and using strict remanufacturing processes
  • All units have new seals, O-rings, gaskets and clutch bearings
  • Tested for noise, vibration, durability, vacuum decay and pressure decay to ensure no leaks and longer life
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2021 GMC Sierra 1500 Cooling and Climate Controls

You count on your 2021 GMC Sierra 1500 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Cooling and Climate Controls. With 21 Cooling and Climate Controls ranging in price from $5.79 to $284.99, you’re sure to find everything you need for your 2021 GMC Sierra 1500.

Brands matter. If you want to shop a specific Cooling and Climate Controls brand, we stock 5 different brands like Carquest Premium, Dorman, and ACDelco. 2021 GMC Sierra 1500 Cooling and Climate Controls start as low as $5.79!

One of the best ways to find top quality OEM or aftermarket Cooling and Climate Controls is by asking professionals. Short of that, you can shop with confidence thanks to our 459 extensive product reviews on 2021 GMC Sierra 1500 Cooling and Climate Controls.

Did we mention you can order your Cooling and Climate Controls from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Cooling and Climate Controls inventory for your 2021 GMC Sierra 1500 below to get started!

Top-Rated Cooling and Climate Controls Brands For Your 2021 GMC Sierra 1500

Trusted Cooling and Climate Controls OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2021 GMC Sierra 1500 running right for years to come. In our inventory you’ll find brands like Carquest Premium, Dorman, ACDelco, and even more.

Popular ACDelco Cooling and Climate Controls

You’ll find popular ACDelco brand products across Engine Cooling Parts. All are waiting to get your 2021 GMC Sierra 1500 back on the road. Some of the top-rated ACDelco products in these categories are:

Top-Rated Carquest Premium Cooling and Climate Controls


If Carquest Premium are what you’re looking for, our inventory holds plenty. We stock Carquest Premium brand Cooling and Climate Controls for your 2021 GMC Sierra 1500, and some of our most reviewed Carquest Premium parts include:
Standard Thermostat: With Seal, 187 Degrees
from $38.99
(45)
Standard Thermostat: With Seal, 187 Degrees
Thermostats
Radiator Cap: 20 PSI
from $19.79
(6)
Radiator Cap: 20 PSI
Coolant Reservoir Caps

FAQs for 2021 GMC Sierra 1500 Cooling and Climate Controls

What are the most purchased Cooling and Climate Controls for the 2021 GMC Sierra 1500?

Out of 21 Cooling and Climate Controls for the 2021 GMC Sierra 1500, the most popular in our inventory are:
Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack
from $16.99
This product is not rated
Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack
Coolant Reservoir Caps
Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack
from $12.99
(1)
Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack
Coolant Reservoir Caps
GM Original Equipment Expansion Tank Cap
from $17.61
This product is not rated
GM Original Equipment Expansion Tank Cap
Coolant Reservoir Caps