2021 Acura RDX Engine Cooling Parts

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Keep Your 2021 Acura RDX in Top Shape with Quality Engine Cooling Parts

Whether you’re repairing or upgrading your Engine Cooling Part, using high-quality parts is key to keeping your 2021 Acura RDX looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Engine Coolant Thermostat Housing Caps, Water Outlets, and Coolant Temperature Sensors. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Engine Cooling Parts from Trusted Brands

Looking for a reliable Engine Cooling Part? We’ve got you covered with options from brands you know and trust like Carquest Premium and Felpro. For example, Carquest Premium Engine Cooling Parts start at just $16.99 with an average 4.5 star rating. Felpro offer similar pricing and quality, backed by strong customer feedback. With over 278 reviews and a solid 4.3 star average, you can shop with confidence knowing other Acura RDX owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2021 Acura RDX Engine Cooling Part at Advance Auto Parts is around $79.18, with a range that starts at $3.29 and goes up to $574.99. With 12 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Carquest Coolant Temperature Sensor 1TS1029, WTC1203, Felpro Engine Coolant Thermostat Housing Gasket, 36022, and Delphi Engine Coolant Temperature Sensor, TS10288 start at just $3.29 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Cooling Part, don’t forget to check out other key components like Air Conditioning Parts and Blower Motor and Related Products. At Advance Auto Parts, we’re here to help you keep your 2021 Acura RDX in peak condition, inside and out.

Essential 2021 Acura RDX Engine Cooling Parts

Carquest Premium – Carquest Radiator Cap: 16 PSI, 10242 (Part No.10242)

Carquest Radiator Cap: 16 PSI, 10242

from

$16.99
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.
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Felpro – Felpro Engine Coolant Thermostat Housing Seal, 35162 (Part No.35162)

Felpro Engine Coolant Thermostat Housing Seal, 35162

from

$7.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Victor Reinz – Victor Reinz Engine Coolant Pipe O-Ring, 41-76345-00 (Part No.41-76345-00)

Victor Reinz Engine Coolant Pipe O-Ring, 41-76345-00

from

$3.69
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
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Felpro – Felpro Engine Coolant Thermostat Housing Gasket, 36022 (Part No.36022)

Felpro Engine Coolant Thermostat Housing Gasket, 36022

from

$3.29
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Carquest Premium – Carquest Integrated Thermostat Housing: With Seal, 172 Degrees, 1116-172 (Part No.1116-172)

Carquest Integrated Thermostat Housing: With Seal, 172 Degrees, 1116-172

from

$83.99
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.
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Carquest Premium – Carquest Radiator Cap Tester Adapter, 12024 (Part No.12024)

Carquest Radiator Cap Tester Adapter, 12024

from

$17.99
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.
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Dorman – Help – Dorman – Help Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack, 54227 (Part No.54227)

Dorman - Help Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack, 54227

from

$10.99
Cracked or lost the original engine coolant reservoir cap- Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.
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Dorman – Help – Dorman – Help Engine Coolant Reservoir Cap: Twist, Plastic/Rubber, 1 Pack, 54370 (Part No.54370)

Dorman - Help Engine Coolant Reservoir Cap: Twist, Plastic/Rubber, 1 Pack, 54370

from

$28.99
Cracked or lost the original engine coolant reservoir cap? Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.
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Carquest Premium – Carquest Engine Coolant Reservoir Cap, T135 (Part No.T135)

Carquest Engine Coolant Reservoir Cap, T135

from

$8.99
Carquest Engine Coolant Reservoir Cap, T135.
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Carquest Premium – Carquest Cooling System Tester Adapter, 12025 (Part No.12025)

Carquest Cooling System Tester Adapter, 12025

from

$98.99
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 cooling systems.
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Felpro – Felpro Engine Coolant Temperature Sensor O-Ring, 72926 (Part No.72926)

Felpro Engine Coolant Temperature Sensor O-Ring, 72926

from

$4.49
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Carquest Premium – Carquest Engine Coolant Thermostat Housing, CH3094 (Part No.CH3094)

Carquest Engine Coolant Thermostat Housing, CH3094

from

$574.99
Carquest Premium Thermostat Housings are manufactured with OEM quality materials and safety standards by an OE Supplier. This 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. The construction of this housing is improved over the OE design to fix and update any issues that the OE design may have had.
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Carquest Premium – Carquest Engine Coolant Water Outlet, CH6018 (Part No.CH6018)

Carquest Engine Coolant Water Outlet, CH6018

from

$31.49
Carquest Premium Thermostat Housings are manufactured with OEM quality materials and safety standards by an OE Supplier. This 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. The construction of this housing is improved over the OE design to fix and update any issues that the OE design may have had.
See More

Delphi – Delphi Engine Coolant Temperature Sensor, TS10288 (Part No.TS10288)

Delphi Engine Coolant Temperature Sensor, TS10288

from

$54.99
Delphi’s history is one of OE heritage and quality. Our global technical requirements include design specifications and validation testing based on over 100 years of OE experience. Our material selections, material thickness, and material types are built from OE specifications to exceed aftermarket expectations. We put in place strict manufacturing processes to ensure quality control in every part we make. Delphi’s pioneering spirit delivers innovative solutions designed to support the aftermarket in servicing the vehicles of today, and tomorrow.
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Carquest Premium – Carquest Coolant Temperature Sensor 1TS1029, WTC1203 (Part No.WTC1203)

Carquest Coolant Temperature Sensor 1TS1029, WTC1203

from

$49.99
Carquest Premium coolant temperature sensors and switches are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry, Carquest Premium coolant temperature sensors and switches undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium coolant temperature sensors and switches are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.
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Carquest Premium – Carquest Engine Coolant Temperature Sensor, WTA2282 (Part No.WTA2282)

Carquest Engine Coolant Temperature Sensor, WTA2282

from

$32.99
Carquest Premium coolant temperature sensors and switches are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry, Carquest Premium coolant temperature sensors and switches undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium coolant temperature sensors and switches are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.
See More

Felpro – Felpro Engine Coolant Thermostat Housing Gasket, 35741 (Part No.35741)

Felpro Engine Coolant Thermostat Housing Gasket, 35741

from

$4.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.
See More

Most Popular Engine Coolant Thermostat Housing Cap for 2021 Acura RDXes

Enhance your 2021 Acura RDX with this popular Engine Coolant Thermostat Housing Cap we have in stock, for $16.99.

Carquest Premium – Carquest Radiator Cap: 16 PSI, 10242 (Part No.10242)

Carquest Radiator Cap: 16 PSI, 10242

from

$16.99
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.
See More

Best-Selling 2021 Acura RDX Water Outlet

Upgrade your RDX with our best-selling Water Outlet.

Carquest Premium – Carquest Engine Coolant Thermostat Housing, CH3094 (Part No.CH3094)

Carquest Engine Coolant Thermostat Housing, CH3094

from

$574.99
Carquest Premium Thermostat Housings are manufactured with OEM quality materials and safety standards by an OE Supplier. This 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. The construction of this housing is improved over the OE design to fix and update any issues that the OE design may have had.
See More

Top-Quality Coolant Temperature Sensors for 2021 Acura RDXes

Choose a high-quality OEM or aftermarket Coolant Temperature Sensor for Acura RDXes and enjoy top-notch performance from $32.99.

Carquest Premium – Carquest Coolant Temperature Sensor 1TS1029, WTC1203 (Part No.WTC1203)

Carquest Coolant Temperature Sensor 1TS1029, WTC1203

from

$49.99
Carquest Premium coolant temperature sensors and switches are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry, Carquest Premium coolant temperature sensors and switches undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium coolant temperature sensors and switches are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.
See More

Delphi – Delphi Engine Coolant Temperature Sensor, TS10288 (Part No.TS10288)

Delphi Engine Coolant Temperature Sensor, TS10288

from

$54.99
Delphi’s history is one of OE heritage and quality. Our global technical requirements include design specifications and validation testing based on over 100 years of OE experience. Our material selections, material thickness, and material types are built from OE specifications to exceed aftermarket expectations. We put in place strict manufacturing processes to ensure quality control in every part we make. Delphi’s pioneering spirit delivers innovative solutions designed to support the aftermarket in servicing the vehicles of today, and tomorrow.
See More

Carquest Premium – Carquest Engine Coolant Temperature Sensor, WTA2282 (Part No.WTA2282)

Carquest Engine Coolant Temperature Sensor, WTA2282

from

$32.99
Carquest Premium coolant temperature sensors and switches are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry, Carquest Premium coolant temperature sensors and switches undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium coolant temperature sensors and switches are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.
See More

Our Top Pick for a 2021 Acura RDX Coolant Reservoir Cap

Invest in a durable Coolant Reservoir Cap for your 2021 Acura, knowing you’re getting trusted brands and expert craftsmanship.

Carquest Premium – Carquest Radiator Cap, T108 (Part No.T108)

Carquest Radiator Cap, T108

from

$6.99
Manufactured to meet all OEM specifications. Designed to be easy to install and remove. Manufactured from high quality components with proper relief and vacuum valves. Quality tested to stand up to even the most demanding automotive cooling systems.
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Our Top-Rated Thermostat Housing Gaskets for 2021 Acura RDXes

Make a smart move for your 2021 Acura RDX with our Thermostat Housing Gasket for $4.49.

Felpro – Felpro Engine Coolant Thermostat Housing Gasket, 35741 (Part No.35741)

Felpro Engine Coolant Thermostat Housing Gasket, 35741

from

$4.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.
See More

Top-Rated Engine Cooling Part Brands For Your 2021 Acura RDX

When it comes to finding the perfect Engine Cooling Part for your 2021 Acura RDX, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Engine Cooling Part brands including Felpro and Carquest Premium, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $4.49. Purchasing a Engine Cooling Part from us here at Advance Auto Parts is a smart move for both you and your 2021 Acura RDX, providing peace of mind with parts that meet or exceed OEM standards.

Popular Felpro 2021 Acura RDX Engine Cooling Parts

If you’re looking for a top-quality Engine Cooling Part for your 2021 Acura RDX, Advance Auto Parts has exactly what you need with our selection of Felpro Engine Cooling Parts. We have 1 Felpro Engine Cooling Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $4.49, you’ll find the perfect Engine Cooling Part for your needs and budget. Felpro Engine Cooling Parts for the 2021 Acura RDX come highly rated, with over 1 customer reviews and an impressive average rating of 4.6 stars. Choosing a Felpro Engine Cooling Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Felpro Engine Coolant Thermostat Housing Gasket, 35741
from $4.49
(1)
Felpro Engine Coolant Thermostat Housing Gasket, 35741
“Works for my 05 accord, 2.4L k24”

Top-Quality Carquest Premium 2021 Acura RDX Engine Cooling Parts

For those in search of a high-quality Engine Cooling Part for their 2021 Acura RDX, Advance Auto Parts offers a great selection of Carquest Premium Engine Cooling Parts. With 2 Carquest Premium Engine Cooling Parts in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Engine Cooling Parts start at just $16.99, with an average price of $17.49, giving you a range of options to suit your budget. Backed by over 138 customer ratings and an average rating of 4.5 stars, Carquest Premium Engine Cooling Parts provide both reliability and excellent performance. Choosing a Carquest Premium Engine Cooling Part from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Carquest Radiator Cap Tester Adapter, 12024
from $17.99
(1)
Carquest Radiator Cap Tester Adapter, 12024
“Works well.”
Carquest Radiator Cap: 16 PSI, 10242
from $16.99
(137)
Carquest Radiator Cap: 16 PSI, 10242
“This product fixed the problem.”

FAQs for 2021 Acura RDX Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 2021 Acura RDXes?

Out of 12 Engine Cooling Parts that fit 2021 Acura RDXes, the following parts are the top sellers:

What’s the price range for 2021 Acura RDX Engine Cooling Parts?

The prices of Engine Cooling Parts for the 2021 Acura RDX range from $3.29 up to $574.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 2021 Acura RDX?

The average price for Engine Cooling Parts for the 2021 Acura RDX is $79.18. Keep in mind the variety of part types within our Engine Cooling Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Cooling Parts for other Acura RDX model years?

Yes, we carry Engine Cooling Parts for 17 model years of Acura RDXes between 2007 and 2025. The following model years are the most popular for Engine Cooling Part purchases: 2022, 2020, 2019, 2018, 2017, 2016, 2015, 2014, and 2013.

What are the cheapest Engine Cooling Parts for my 2021 Acura RDX?

The cheapest 2021 Acura RDX Engine Cooling Parts we carry are:

Does Advance Auto Parts sell Engine Cooling Parts for any other 2021 Acura models?

Yes. We stock Engine Cooling Parts for 2 other popular 2021 Acura models. Some of the most popular are 2021 NSX Engine Cooling Parts, 2021 TLX Engine Cooling Parts, and 2021 ILX Engine Cooling Parts.

What are the top-rated Engine Cooling Parts that fit the 2021 Acura RDX?

Based on 278 reviews by customers, our 2021 Acura RDX Engine Cooling Parts have an average customer rating of 4.3 stars. These are the highest-rated categories of Engine Cooling Parts for the 2021 Acura RDX and their top-rated products:

What types of Engine Cooling Parts do you sell for my 2021 Acura RDX?

As of 8/2/26, these are some of the most in-demand types of Engine Cooling Parts for a 2021 Acura RDX:

Can I get help with 2021 Acura RDX Engine Cooling Part orders?

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

What is your return policy for Acura RDX Engine Cooling Parts?

Advance Auto Parts keeps returns simple. For new Acura RDX Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.