2021 GMC Sierra 1500 Cooling and Climate Controls

Below you will find various in-demand GMC Cooling and Climate Controls, components and accessories for your 2021 Sierra 1500. Advance Auto Parts has popular Sierra 1500 parts like Air Conditioning Parts, Engine Cooling Parts, Blower Motor and Related Products and more. You’ll also find aftermarket and OEM Cooling and Climate Controls for other Sierra 1500 model years including 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022, 2023 and more. Select a category of 2021 GMC Sierra 1500 Cooling and Climate Controls below and start saving instantly.

Popular 2021 GMC Sierra 1500 Cooling and Climate Controls Categories

Water Pump Housing Gaskets

Radiators

Blower Motors

Radiator Caps

AC Compressor Without Clutch

Thermostats

Thermostat and Water Outlet Assemblies

Coolant Temperature Sensors

Coolant Reservoir Caps

Water Outlets

Air Conditioning Relays

AC Condensers

Thermostat Housings

Thermostat Seals

Thermostat and Water Outlet Gaskets

Water Pump Gaskets

AC Compressor Control Valves

AC Service Valve Caps

Engine Coolant Water Inlet Seals

AC Expansion Valve O-Rings

Essential Cooling and Climate Controls for 2021 GMC Sierra 1500s

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$12.81

Expansion Tank Cap

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$4.09

The Mahle Engine Coolant Thermostat O-Ring is a high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:

Seals the thermostat housing and helps prevent coolant from leaking from the engine for proper engine temperature
Premium Original Equipment replacement
Provides performance and dependability
Manufactured to meet OE specifications

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$45.99

We are proud to offer this CARQUEST product line: CARQUEST Water Outlets. Our products are engineered and tested to provide years of trouble free operation and designed to be hassle free OE replacement part that meets and/or exceeds OE standards. Backed by over 50 years of mobile temperature control experience, fix it once and fix it right with CARQUST Water Outlets and Thermostat Housings.

Product Features:

Meets and/or exceeds OEM standard
Includes quality gasket or O-ring to ensure proper seal (where applicable)
Coated with corrosion and rust inhibitor
100% leak tested
Direct-fit replacement for ease of installation

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$10.99

GM Genuine Parts A/C System Valve Cores are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These A/C system valve cores are components of the A/C service valve through which your vehicle’s refrigerant can be accessed and serviced. The valve core is a spring-loaded poppet valve that is opened when the service technician connects the A/C service machine hose couplers. 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:

Repair leaking A/C system, restore A/C function
Helps restore A/C Function
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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$23.49

Carquest Premium Integrated Housing Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This integrated thermostat housing 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 as well as the design and function of the housing. 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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$49.49

GM Genuine Parts Wiring Relays are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These relays help connect or disconnect power to a vehicle accessory when it receives a low voltage signal from a switch. 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:

Helps connect or disconnect power to vehicle accessories
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

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$401.06

Radiator

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$54.99

High quality OE replacement part with all components needed to complete the job

Product Features:

Meets and/or exceeds OEM standard
Includes quality gasket or O-ring to ensure proper seal (where applicable
Coated with corrosion and rust inhibitor
100% leak tested
Direct-fit replacement for ease of installation

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$284.99

Carquest New Compressors are designed, manufactured and tested to meet or exceed strict original equipment specifications for superior quality and performance. Each new compressor is tested to provide durable life to the vehicle’s air conditioning system. All new compressor components are assembled using state of the art equipment and techniques to ensure smooth operation. Each part is equipped with a clutch and connector that matches the original equipment part and provides an exact replacement to your vehicle’s part. All compressors are supplied with the necessary gaskets and o-rings for installation.

Product Features:

Each new compressor design undergoes rigorous life cycle testing at high RPMs and pressures to ensure that they can withstand years in the harshest conditions.
New compressors are designed with utmost precision using 3D coordinate measuring machines to ensure a perfect fit.
The production process contains automated controls at every stage that alerts and halts production in case of an error, assuring that the finished product will always be flawless.
All new compressors must pass a helium leak test and pump up function test prior to packaging.
O-Rings and gaskets necessary for installation are included.

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$2.63

Water Pump Gasket

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$15.99

The Carquest Premium line is designed for OE form, fit and function for both import and domestic vehicles. The A/C Pressure Relief Valve is used in the automotive air conditioning system to prevent unusual over-pressure that may cause damage to critical components within the system or to the system as a whole. By opening it¿s valve when the system pressure exceeds the preset pressure levels and closing when the internal pressure decreases to the preset pressure levels, proper factory designated system pressures are maintained.

Product Features:

Designed and manufactured with high quality materials, industry leading components and strict quality controls. Engineered to meet or exceed OE performance and to meet the uncompromising demands of service professionals.
Direct fit replacement matches proper OE fit, form, and function and ensures trouble free installation of your A/C Pressure Relief Valve.
All units are tested using advanced end-of-line testing equipment that pressurizes the A/C Pressure Relief Valve and checks functionality to ensure each A/C Pressure Relief Valve meets manufacturing specifications before packaging.

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$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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$8.99

GM Genuine Parts Engine Coolant Thermostat Seals are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These seals help close and prevent coolant from leaking out of your vehicle’s cooling system components. 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:

Helps close and prevent coolant from leaking out of your vehicle’s cooling system components to maintain the proper engine temperature
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

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$222.99

The Carquest condenser is an integral component of the motor vehicle air conditioning system. This part condenses the refrigerant into a liquid to prepare it for entry into the compressor. The condenser is manufactured according to OEM design specifications to ensure a long life with quality performance. Exact design standards produce a seamless fit into the engine compartment.

Product Features:

This is a parallel flow condenser that contains small micro-channels. It is highly recommended that this condenser be replaced if a failure has occurred in the vehicle’s air conditioning system that has resulted in debris contaminating the system. This
The Carquest condenser production process includes quality driven details such as using zinc-coated tubes and electrostatic paint spray at high temperatures to provide the best corrosion resistance and durability in our condensers.
Continuous molds, laser welding machines, semi-automatic assembly stations and other advanced equipment provide quality products.
Each condenser uses only the highest quality raw materials including pure aluminum (not substandard or recycled) to provide the highest quality standards from beginning to finished product.
All brackets are designed per OEM specifications to ensure strength and reduce vibration and movement.
We leak test 100% of our condensers in helium leak test chambers to ensure the product does not leak.
Our condensers are manufactured from rigid design standards to fit OEM dimensions.
Each condenser design endures a series of tests that includes performance testing, vibration testing, blast testing, and salt spray testing to simulate real world conditions.

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$198.99

GM Genuine Parts HVAC Blower Motors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These HVAC blower motors are electric fans located in the HVAC housing. The fan pushes air through the heater core and evaporator and into the cabin. 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:

Permanently lubricated, self-aligning bearings designed for long life and dependable performance
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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$137.17

Maintaining warm or cool air circulating smoothly through a vehicle’s cabin is the key to passenger comfort. Manufactured to precision standards, a TYC brand Blower delivers the fit and quality you expect from the quality-driven reputation TYC/Genera has built. Your new TYC brand Blower is designed specifically for your vehicle and is ready to be installed quickly and easily under the dash, into the ventilation module. To guarantee the quietest operation, the sound of the operating motor is also tested to ensure comfortable air movement without excessive noise.

Product Features:

Manufactured to exact OEM specifications.
Direct Fit Replacement.
Application-specific motor and wheel,
OE-comparable connector
Hassle-free installation.

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$2.19

Seals the thermostat housing and helps prevent coolant from leaking from the engine for proper engine temperature
Premium Original Equipment replacement
Provides performance and dependability
Manufactured to meet OE specifications

from

$5.79

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
Unsurpassed quality you can trust
Validated for fit, form, and function
Validated for fit, form, and function

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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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$2.04

Water Pump Hsng Gask

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$20.78

A/C Hose Seal

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$16.99

Cracked or lost the original engine coolant reservoir cap? Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.

Product Features:

Direct replacement – this engine coolant reservoir cap directly replaces a cracked or lost original cap.
Application specific – made to match dimensions of reservoir cap on only certain vehicle years, makes and models
Seamless fit – reverse-engineered from the original equipment to fit perfectly
Excellent value – a quick, easy replacement that’s less expensive than going back to the dealership

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$14.99

Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:

Maintains proper cooling system pressure
Easy installation and removal
100% tested to ensure proper pressure and longevity
Meets all OEM specifications

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$23.79

Cracked or lost the original engine coolant reservoir cap? Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.

Product Features:

Direct replacement – this engine coolant reservoir cap directly replaces a cracked or lost original cap.
Application specific – made to match dimensions of reservoir cap on only certain vehicle years, makes and models
Seamless fit – reverse-engineered from the original equipment to fit perfectly
Excellent value – a quick, easy replacement that’s less expensive than going back to the dealership

from

$38.99

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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$10.99

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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$54.46

An ACDelco GM Original Equipment Engine Coolant Thermostat is a temperature controlled valve located in the engine coolant outlet to, or the inlet from, the radiator, and is a GM-recommended replacement for your vehicle’s original component. It controls the flow of coolant through the radiator to enable the engine to reach and maintain its normal operating temperature. This original equipment engine coolant thermostat has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

Control the flow of coolant through the radiator to enable the engine to reach and maintain its normal operating 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

from

$18.79

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

Upgrade your 2021 GMC Sierra 1500 with Top-Quality Cooling and Climate Controls

When it comes to maintaining or upgrading your 2021 GMC Sierra 1500, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your GMC or enhancing its overall performance, Cooling and Climate Controls are key to keeping your Sierra 1500 functioning at its best. At Advance Auto Parts, we offer a wide selection of 28 Cooling and Climate Controls for the 2021 GMC Sierra 1500, designed to meet your needs without breaking the bank. From Air Conditioning Part replacements to Engine Cooling Parts upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Cooling and Climate Controls for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Cooling and Climate Controls for your 2021 GMC Sierra 1500 at great prices. Our Cooling and Climate Controls inventory for this model ranges from just $5.79 to $889.99, with an average price of $60.08. Our 28 Cooling and Climate Controls in stock come from 8 trusted brands, so you’re sure to find the right part for your 2021 GMC Sierra 1500 without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2021 GMC Sierra 1500, we stock popular OEM and aftermarket Cooling and Climate Controls from top names like ACDelco, Carquest Premium, Dorman, and more. ACDelco Cooling and Climate Controls start at just $10.84 and boast an impressive 5 stars average rating from customers. Carquest Premium and Dorman also bring quality to the table, with Cooling and Climate Controls available starting at $8.99, and at an average 4 stars rating. With 459 customer reviews and counting, our 2021 GMC Sierra 1500 Cooling and Climate Controls have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Cooling and Climate Control upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2021 GMC Sierra 1500 is always ready to roll. We’re committed to providing you with everything you need to keep your Sierra 1500 in top shape, all in one place. Start shopping confidently below for your 2021 GMC Sierra 1500!

Best-Selling Air Conditioning Parts for 2021 GMC Sierra 1500s

Enhance the driving experience in your GMC with 7 quality Air Conditioning Part components, starting at $8.99.

show more show less

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$284.99

Each new compressor design undergoes rigorous life cycle testing at high RPMs and pressures to ensure that they can withstand years in the harshest conditions.
New compressors are designed with utmost precision using 3D coordinate measuring machines to ensure a perfect fit.
The production process contains automated controls at every stage that alerts and halts production in case of an error, assuring that the finished product will always be flawless.
All new compressors must pass a helium leak test and pump up function test prior to packaging.
O-Rings and gaskets necessary for installation are included.

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$248.82

A/C CONDENSER

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$20.78

A/C Hose Seal

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$16.19

Relay

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$15.99

GM Genuine Parts Rubber-Bonded Sealing Washers are designed, engineered, and tested to rigorous standards, and are backed by General Motors. 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:

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

from

$13.13

A/C Service Valve

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$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

Most Popular 2021 GMC Sierra 1500 Engine Cooling Parts

Customize your GMC with 20 Engine Cooling Parts products like Thermostats, Radiators, and Thermostat and Water Outlet Gaskets, all priced under $889.99.

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from

$19.79

Maintains proper cooling system pressure
Easy installation and removal
100% tested to ensure proper pressure and longevity
Meets all OEM specifications

from

$13.99

Cracked or lost the original engine coolant reservoir cap? Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.

Product Features:

Direct replacement – this engine coolant reservoir cap directly replaces a cracked or lost original cap.
Application specific – made to match dimensions of reservoir cap on only certain vehicle years, makes and models
Seamless fit – reverse-engineered from the original equipment to fit perfectly
Excellent value – a quick, easy replacement that’s less expensive than going back to the dealership

from

$81.39

Control the flow of coolant through the radiator to enable the engine to reach and maintain its normal operating 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

from

$38.99

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

from

$16.99

Cracked or lost the original engine coolant reservoir cap? Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.

Product Features:

Direct replacement – this engine coolant reservoir cap directly replaces a cracked or lost original cap.
Application specific – made to match dimensions of reservoir cap on only certain vehicle years, makes and models
Seamless fit – reverse-engineered from the original equipment to fit perfectly
Excellent value – a quick, easy replacement that’s less expensive than going back to the dealership

from

$21.02

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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$20.99

Meets and/or exceeds OEM standard
Includes quality gasket or O-ring to ensure proper seal (where applicable)
100% leak tested
Direct-fit replacement for ease of installation

from

$5.79

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
Unsurpassed quality you can trust
Validated for fit, form, and function
Validated for fit, form, and function

from

$7.49

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
Manufactured for the sealing repair environment
Validated for fit, form, and function
Quality that you can trust

from

$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

from

$7.41

Seals the thermostat housing and helps prevent coolant from leaking from the engine for proper engine temperature
Premium Original Equipment replacement
Provides performance and dependability
Manufactured to meet OE specifications

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$889.99

HOUSING ASSEMBLY

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$269.99

RADIATOR

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$18.46

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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$16.28

THERMOSTAT HOUSING

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$12.81

Expansion Tank Cap

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$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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$10.99

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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$10.84

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

from

$8.99

Helps close and prevent coolant from leaking out of your vehicle’s cooling system components to maintain the proper engine temperature
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

Top Picks for 2021 GMC Sierra 1500 Blower Motor and Related Products

Upgrade GMC Sierra 1500s with top-quality Blower Motor and Related Products parts, including 1 OEM and aftermarket selections for your 2021 model.

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from

$266.99

Carquest Premium Blower Motors are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and fix it right with Carquest Premium Blower Motors. Meets or exceeds OE design. Magnetic size and properties compare or exceed OEM. Windings meet or exceed OEM Specifications. Motor RPM equivalent to or exceeds OEM motor.

Product Features:

Meets or exceeds OE design and performance
Magnetic size and properties compare or exceed OEM
Windings meet or exceed OEM specifications
Motor RPM equivalent to or exceeds OEM motor
Meets or exceeds OE design and performance
Magnetic size and properties compare or exceed OEM
Windings meet or exceed OEM specifications
Motor RPM equivalent to or exceeds OEM motor

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

Shop for the best-rated brands offering Cooling and Climate Controls and other products for your 2021 GMC Sierra 1500s. Below you’ll find some of our best rated Cooling and Climate Controls from ACDelco, Carquest Premium, and Dorman, and more. Cooling and Climate Controls from these brands that fit a 2021 Sierra 1500 start at just $8.99 and are rated as high as 5 stars. OEM and aftermarket Cooling and Climate Controls don’t get more top quality, durable, and affordable than from the brands below.

Popular ACDelco 2021 GMC Sierra 1500 Cooling and Climate Controls

When it comes to maintaining or upgrading your 2021 GMC Sierra 1500, using quality Cooling and Climate Controls is essential to ensure durability and a perfect fit. ACDelco ticks all of those boxes. We offer a wide selection of ACDelco Cooling and Climate Controls, specifically designed for the 2021 GMC Sierra 1500. With over 7 ACDelco brand Cooling and Climate Controls in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $10.84, with an average price of just $25.97. Plus, with over 1 customer reviews and an average rating of 5 stars, you can trust that our ACDelco Cooling and Climate Controls will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

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$21.02

This product is not rated

GM Original Equipment Expansion Tank Cap

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$20.78

This product is not rated

A/C Hose Seal

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$18.46

This product is not rated

15-10595 GM Original Equipment Engine Coolant Water Outlet

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Popular Carquest Premium 2021 GMC Sierra 1500 Cooling and Climate Controls

Carquest Premium auto parts is one of the highest quality Cooling and Climate Control brands in the market. Any 2021 GMC Sierra 1500 owner should feel confident when installing genuine Carquest Premium parts in their vehicle. To ensure the best fit and performance for your 2021 Sierra 1500, Advance Auto Parts carries a full inventory of 8 Carquest Premium Cooling and Climate Controls. Plus you will be keeping your GMC in peak condition while saving money because prices on these Carquest Premium Cooling and Climate Controls range from $10.99 to $889.99, plus, with more than 51 customer reviews and an impressive 4 stars average rating, you can be confident the Fram Cooling and Climate Controls below will deliver on both quality and value.

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$889.99

This product is not rated

HOUSING ASSEMBLY

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from
$284.99

This product is not rated

New, with Clutch, with 7SAS17A Compressor

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from
$20.99

This product is not rated

Coolant Housing/Water Outlet

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FAQs for 2021 GMC Sierra 1500 Cooling and Climate Controls

Which Cooling and Climate Controls are best-sellers for 2021 GMC Sierra 1500s?

Out of 28 Cooling and Climate Controls that fit 2021 GMC Sierra 1500s, the following parts are the top sellers:

Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack (11871344) – $16.99
Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack (11153255) – $13.99
GM Original Equipment Expansion Tank Cap (11731899) – $21.02

What’s the price range for 2021 GMC Sierra 1500 Cooling and Climate Controls?

Cooling and Climate Control prices for the 2021 GMC Sierra 1500 start at $5.79 and go up to $889.99 for the most premium parts.

What’s the average price of a Cooling and Climate Control for a 2021 GMC Sierra 1500?

The average price for Cooling and Climate Controls for the 2021 GMC Sierra 1500 is $60.08. Keep in mind the variety of part types within our Cooling and Climate Control category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Cooling and Climate Controls for other GMC Sierra 1500 model years?

Yes, we currently carry Cooling and Climate Controls for 26 model years of GMC Sierra 1500s between 1999 and 2025. Cooling and Climate Controls are bought most frequently for the following model years: 2023, 2022, 2020, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Cooling and Climate Controls for my 2021 GMC Sierra 1500?

The cheapest 2021 GMC Sierra 1500 Cooling and Climate Controls we carry in stock are:

Thermostat Gasket (12005650) – $5.79
Engine Coolant Thermostat O-Ring (11999727) – $7.41
Engine Water Pump Gasket (12084482) – $7.49
Air Conditioning Service Port Caps (50000471) – $8.99
Water Inlet Seal (12044502) – $8.99

What are the top-rated Cooling and Climate Controls that fit the 2021 GMC Sierra 1500?

Out of 459 reviews by customers, our 2021 GMC Sierra 1500 Cooling and Climate Controls have an average customer rating of . These are some of the highest-rated Cooling and Climate Control types for the 2021 GMC Sierra 1500 and their top-rated products:

Engine Cooling Parts
- Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack (11153255) – $13.99
- Radiator Cap: 20 PSI (10647381) – $19.79
- GM Original Equipment Engine Coolant Thermostat (11478680) – $81.39

What types of Cooling and Climate Controls do you sell for my 2021 GMC Sierra 1500?

As of 2/5/25, these are some of the most in-demand types of Cooling and Climate Controls for a 2021 GMC Sierra 1500:

Can I get help with 2021 GMC Sierra 1500 Cooling and Climate Control orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about GMC Cooling and Climate Controls and more.

What is your return policy for GMC Sierra 1500 Cooling and Climate Controls?

Advance Auto Parts keeps returns simple. For new GMC Sierra 1500 Cooling and Climate Controls and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

2021 GMC Sierra 1500 Cooling and Climate Controls

Autopart International Inc – Expansion Tank Cap (Part No.G10402009531API)

Mahle – Engine Coolant Thermostat O-Ring (Part No.G4030204690MAH)

Carquest Premium – Coolant Housing/Water Outlet: Gasket Included (Part No.85168)

GM Genuine Parts – Air Conditioning System Valve Core (Part No.15-1119)

Carquest Premium – Integrated Thermostat Housing: With Seal, 187 Degrees (Part No.14298)

GM Genuine Parts – Multi-Purpose Relay (Part No.15016745)

ACDelco – Radiator (Part No.G1000452045ACD)

Carquest Premium – Engine Coolant Thermostat Housing (Part No.85254)

Carquest Premium – New, with Clutch, with 7SAS17A Compressor (Part No.T168343)

ACDelco – Water Pump Gasket (Part No.G3040310243ACD)

Carquest Premium – A/C Compressor Relief Valve (Part No.ACA1296)

Delphi – Engine Coolant Temperature Sensor (Part No.TS10076)

GM Genuine Parts – Water Inlet Seal (Part No.12587397)

Carquest Premium – A/C Condenser (Part No.2318)

GM Genuine Parts – Blower Motor: With Wheel (Part No.15-81683)

TYC Genera – Blower Motor Assembly (Part No.R2031445589TYC)

Mahle – Engine Coolant Thermostat O-Ring (Part No.G4030204901MAH)

Felpro – Thermostat Gasket (Part No.36106)

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

Mahle – Water Pump Hsng Gask (Part No.G3031212899MAH)

ACDelco – A/C Hose Seal (Part No.R1038602000ACD)

Dorman – Help – Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack (Part No.54218CD)

Carquest Premium – Radiator Cap: 15 PSI (Part No.10248)

Dorman – HD Solutions – Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack (Part No.902-5601)

Carquest Premium – Standard Thermostat: With Seal, 187 Degrees (Part No.15158)

Carquest Premium – Standard Thermostat: With Seal, 195 Degrees (Part No.14119)

ACDelco – GM Original Equipment Engine Coolant Thermostat (Part No.G4000455410ACD)

Carquest Premium – Standard Thermostat: With Seal, 187 Degrees (Part No.14948)

Carquest Premium – New, with Clutch, with 7SAS17A Compressor (Part No.T168343)

Worldpac – A/C CONDENSER (Part No.R10304154069KCS)

ACDelco – A/C Hose Seal (Part No.R1038602000ACD)

ACDelco – Relay (Part No.P2020765633ACD)

GM Genuine Parts – Air Conditioning Line O-Ring (Part No.13579649)

ACDelco – A/C Service Valve (Part No.R1129947779ACD)

Dorman – Help – Air Conditioning Service Port Caps (Part No.54374)

Carquest Premium – Radiator Cap: 20 PSI (Part No.10271)

Dorman – Help – Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack (Part No.54218)

ACDelco – GM Original Equipment Engine Coolant Thermostat (Part No.G4000310418ACD)

Carquest Premium – Standard Thermostat: With Seal, 187 Degrees (Part No.15158)

Dorman – Help – Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack (Part No.54218CD)

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

Carquest Premium – Coolant Housing/Water Outlet (Part No.85945)

Felpro – Thermostat Gasket (Part No.36106)

Felpro – Engine Water Pump Gasket (Part No.36110)

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

Mahle – Engine Coolant Thermostat O-Ring (Part No.G4030310258MAH)

Carquest Premium – HOUSING ASSEMBLY (Part No.1320-000)

Worldpac – RADIATOR (Part No.G10001522068CSF)

ACDelco – 15-10595 GM Original Equipment Engine Coolant Water Outlet (Part No.G4010349243ACD)

Worldpac – THERMOSTAT HOUSING (Part No.G40101697790DOR)

Autopart International Inc – Expansion Tank Cap (Part No.G10402009531API)

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

Carquest Premium – Coolant Temperature Sensor (Part No.WTC1276)

ACDelco – 12587397 GM Original Equipment Engine Coolant Water Inlet Seal (Part No.G4030310258ACD)

GM Genuine Parts – Water Inlet Seal (Part No.12587397)

Carquest Premium – Blower Motor: With Wheel (Part No.75158)