2003 Audi RS6 Engine Cooling Parts

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Keep Your 2003 Audi RS6 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 2003 Audi RS6 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Thermostats, Radiators, and Coolant Reservoirs. 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 Mahle. For example, Carquest Premium Engine Cooling Parts start at just $13.99 with an average 4.5 star rating. Mahle offer similar pricing and quality, backed by strong customer feedback. With over 20 reviews and a solid 3.6 star average, you can shop with confidence knowing other Audi RS6 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2003 Audi RS6 Engine Cooling Part at Advance Auto Parts is around $54.47, with a range that starts at $1.45 and goes up to $329.99. With 18 options in stock from 8 trusted brands, finding the right fit is easy. Popular picks like Carquest Coolant Temperature Sensor 1TS1008, WTC1007, NTK Engine Coolant Temperature Sensor, EF0079, and MAHLE Original Engine Coolant Thermostat Housing Gasket, C31633 start at just $1.45 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 2003 Audi RS6 in peak condition, inside and out.

Essential 2003 Audi RS6 Engine Cooling Parts

Dorman – Dorman Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement, 603-703 (Part No.603-703)

Dorman Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement, 603-703

from

$51.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
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Dorman – Help – Dorman – Help Coolant Reservoir Cap, 54016 (Part No.54016)

Dorman - Help Coolant Reservoir Cap, 54016

from

$13.99
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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URO Parts – URO Parts Expansion Tank Cap, 3B0121321 (Part No.3B0121321)

URO Parts Expansion Tank Cap, 3B0121321

from

$3.99
For European vehicles, A.P.A. manufactures the URO Parts brand of quality replacement parts, which meet or exceed OEM specifications. URO Parts components are ideal for both professional and DIY vehicle repair, and are often the exclusive aftermarket alternative to overpriced €œGenuine€ components. By reducing deferred maintenance with URO Parts, you will increase the bottom line of your business. With its URO Premium line, A.P.A. offers problem-solving upgraded components that are superior to failure-prone OEM parts in design and/or materials. A.P.A. is so confident in the longevity and reliability of URO Premium products, . URO Parts also specializes in accurate reproduction parts for classic vehicles, including a huge variety of items that are no longer available from the dealer.
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Carquest Premium – Carquest Radiator, 812639 (Part No.812639)

Carquest Radiator, 812639

from

$329.99
A global leader in the manufacture and distribution of aftermarket cooling products for automotive, heavy truck, and industrial applications. Specialized in the production of OE-quality Radiators, Condensers, and Charge Air Coolers for US and international markets, covering over 10,000 part numbers worldwide. Reach Cooling is headquartered in Miami, Florida, with additional distribution centers in Los Angeles, California and a manufacturing plant in Shanghai, China.
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Carquest Premium – Carquest Radiator Cap Adapter, 12036 (Part No.12036)

Carquest Radiator Cap Adapter, 12036

from

$115.99
Tester adapter for the 9300 and 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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Carquest Premium – Carquest Fuel Cap Tester Adapter:, 12427 (Part No.12427)

Carquest Fuel Cap Tester Adapter:, 12427

from

$34.99
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
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Motorad – Motorad Standard Thermostat: 170 Degrees, 304-170 (Part No.304-170)

Motorad Standard Thermostat: 170 Degrees, 304-170

from

$24.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. 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
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Motorad – Motorad Standard Thermostat: 180 Degrees, 304-180 (Part No.304-180)

Motorad Standard Thermostat: 180 Degrees, 304-180

from

$25.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. 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
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Carquest Premium – Carquest Thermostat: 176 Degrees, 304-176 (Part No.304-176)

Carquest Thermostat: 176 Degrees, 304-176

from

$164.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. 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.
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Carquest Premium – Carquest Radiator Cap Adapter, 12037 (Part No.12037)

Carquest Radiator Cap Adapter, 12037

from

$75.99
Tester adapter for the 9300 and 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.
See More

Carquest Premium – Carquest Standard Reservoir Cap: 20 PSI, 10249 (Part No.10249)

Carquest Standard Reservoir Cap: 20 PSI, 10249

from

$13.99
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

MAHLE Original – MAHLE Original Engine Coolant Thermostat Housing Gasket, C31633 (Part No.C31633)

MAHLE Original Engine Coolant Thermostat Housing Gasket, C31633

from

$2.99
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.
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Rein – Rein Temperature Sensor Kit, ELC0051P (Part No.ELC0051P)

Rein Temperature Sensor Kit, ELC0051P

from

$21.99
Electrical parts control all aspects of vehicles on the road today. Replacing these components when they are starting to fail will ensure your vehicle has maximum performance and fuel economy. This is why Rein Automotive electrical parts are application specific and match the design and function of the OE parts.
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Carquest Premium – Carquest Coolant Temperature Sensor 1TS1008, WTC1007 (Part No.WTC1007)

Carquest Coolant Temperature Sensor 1TS1008, WTC1007

from

$31.99
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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NTK – NTK Engine Coolant Temperature Sensor, EF0079 (Part No.EF0079)

NTK Engine Coolant Temperature Sensor, EF0079

from

$34.99
The Engine Coolant Temperature Sensor determines the exact temperature of the engine coolant by sending an analog signal to the ECM to ensure proper air/fuel ratio along with proper operation of the cooling fans and temperature gauge. The Engine Coolant Temperature Sensor may be located on the cylinder head, engine block, thermostat housing or intake manifold. Reasons for replacement include, check engine light illumination, erratic or no temperature gauge operation, erratic or no cooling fan operation, and engine overheating.
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URO Parts – URO Parts Auxiliary Fan Switch, Includes oring seal, 8D0959481B (Part No.8D0959481B)

URO Parts Auxiliary Fan Switch, Includes oring seal, 8D0959481B

from

$12.99
For European vehicles, A.P.A. manufactures the URO Parts brand of quality replacement parts, which meet or exceed OEM specifications. URO Parts components are ideal for both professional and DIY vehicle repair, and are often the exclusive aftermarket alternative to overpriced €œGenuine€ components. By reducing deferred maintenance with URO Parts, you will increase the bottom line of your business. With its URO Premium line, A.P.A. offers problem-solving upgraded components that are superior to failure-prone OEM parts in design and/or materials. A.P.A. is so confident in the longevity and reliability of URO Premium products, . URO Parts also specializes in accurate reproduction parts for classic vehicles, including a huge variety of items that are no longer available from the dealer.
See More

Victor Reinz – Victor Reinz Engine Coolant Pipe O-Ring, 41-10479-00 (Part No.41-10479-00)

Victor Reinz Engine Coolant Pipe O-Ring, 41-10479-00

from

$6.19
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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Most Popular Thermostats for 2003 Audi RS6s

Enhance your 2003 Audi RS6 with one of the 3 Thermostats we have in stock, starting at just $24.99.

Motorad – Motorad Standard Thermostat: 180 Degrees, 304-180 (Part No.304-180)

Motorad Standard Thermostat: 180 Degrees, 304-180

from

$25.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. 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
See More

Motorad – Motorad Standard Thermostat: 170 Degrees, 304-170 (Part No.304-170)

Motorad Standard Thermostat: 170 Degrees, 304-170

from

$24.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. 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
See More

Carquest Premium – Carquest Thermostat: 176 Degrees, 304-176 (Part No.304-176)

Carquest Thermostat: 176 Degrees, 304-176

from

$164.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. 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.
See More

Best-Selling 2003 Audi RS6 Radiator

Upgrade your RS6 with our best-selling Radiator.

Carquest Premium – Carquest Radiator, 812639 (Part No.812639)

Carquest Radiator, 812639

from

$329.99
A global leader in the manufacture and distribution of aftermarket cooling products for automotive, heavy truck, and industrial applications. Specialized in the production of OE-quality Radiators, Condensers, and Charge Air Coolers for US and international markets, covering over 10,000 part numbers worldwide. Reach Cooling is headquartered in Miami, Florida, with additional distribution centers in Los Angeles, California and a manufacturing plant in Shanghai, China.
See More

Top-Quality Coolant Reservoirs for 2003 Audi RS6s

Choose a high-quality OEM or aftermarket Coolant Reservoir for Audi RS6s and enjoy top-notch performance from $51.99.

Dorman – Dorman Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement, 603-703 (Part No.603-703)

Dorman Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement, 603-703

from

$51.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
See More

Our Top Pick for a 2003 Audi RS6 Radiator Cap

Invest in a durable Radiator Cap for your 2003 Audi, knowing you’re getting trusted brands and expert craftsmanship.

Carquest Premium – Carquest Standard Reservoir Cap: 20 PSI, 10249 (Part No.10249)

Carquest Standard Reservoir Cap: 20 PSI, 10249

from

$13.99
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

Our Top-Rated Thermostat Housing Gaskets for 2003 Audi RS6s

Make a smart move for your 2003 Audi RS6 with our Thermostat Housing Gasket for $2.99.

MAHLE Original – MAHLE Original Engine Coolant Thermostat Housing Gasket, C31633 (Part No.C31633)

MAHLE Original Engine Coolant Thermostat Housing Gasket, C31633

from

$2.99
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.
See More

Top-Rated Engine Cooling Part Brands For Your 2003 Audi RS6

When it comes to finding the perfect Engine Cooling Part for your 2003 Audi RS6, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 8 trusted brands. We carry the most popular Engine Cooling Part brands including Carquest Premium and Mahle, and more, all known for their exceptional customer ratings (average brand rating of 4.5 stars) and competitive prices, as low as $2.99. Purchasing a Engine Cooling Part from us here at Advance Auto Parts is a smart move for both you and your 2003 Audi RS6, providing peace of mind with parts that meet or exceed OEM standards.

Popular Carquest Premium 2003 Audi RS6 Engine Cooling Parts

If you’re looking for a top-quality Engine Cooling Part for your 2003 Audi RS6, Advance Auto Parts has exactly what you need with our selection of Carquest Premium Engine Cooling Parts. We have 1 Carquest Premium Engine Cooling Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $13.99, you’ll find the perfect Engine Cooling Part for your needs and budget. Carquest Premium Engine Cooling Parts for the 2003 Audi RS6 come highly rated, with over 3 customer reviews and an impressive average rating of 4.5 stars. Choosing a Carquest Premium Engine Cooling Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Carquest Standard Reservoir Cap: 20 PSI, 10249
from $13.99
(3)
Carquest Standard Reservoir Cap: 20 PSI, 10249
“Great price”

Top-Quality Mahle 2003 Audi RS6 Engine Cooling Parts

For those in search of a high-quality Engine Cooling Part for their 2003 Audi RS6, Advance Auto Parts offers a great selection of Mahle Engine Cooling Parts. With 1 Mahle 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 $2.99, giving you a range of options to suit your budget. Backed by over 1 customer ratings and an average rating of 4.5 stars, Mahle Engine Cooling Parts provide both reliability and excellent performance. Choosing a Mahle Engine Cooling Part from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

FAQs for 2003 Audi RS6 Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 2003 Audi RS6s?

Out of 18 Engine Cooling Parts that fit 2003 Audi RS6s, the following parts are the top sellers:

What’s the price range for 2003 Audi RS6 Engine Cooling Parts?

The prices of Engine Cooling Parts for the 2003 Audi RS6 range from $1.45 up to $329.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 2003 Audi RS6?

The average price for Engine Cooling Parts for the 2003 Audi RS6 is $54.47. 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.

What are the cheapest Engine Cooling Parts for my 2003 Audi RS6?

Does Advance Auto Parts sell Engine Cooling Parts for any other 2003 Audi models?

Yes. We stock Engine Cooling Parts for 9 other popular 2003 Audi models. Some of the most popular are 2003 A4 Quattro Engine Cooling Parts, 2003 A4 Engine Cooling Parts, 2003 A6 Quattro Engine Cooling Parts, 2003 A6 Engine Cooling Parts, and 2003 TT Quattro Engine Cooling Parts.

What are the top-rated Engine Cooling Parts that fit the 2003 Audi RS6?

Based on 20 reviews by customers, our 2003 Audi RS6 Engine Cooling Parts have an average customer rating of 3.6 stars. These are the highest-rated categories of Engine Cooling Parts for the 2003 Audi RS6 and their top-rated products:

What types of Engine Cooling Parts do you sell for my 2003 Audi RS6?

As of 8/2/26, these are some of the most in-demand types of Engine Cooling Parts for a 2003 Audi RS6:

Can I get help with 2003 Audi RS6 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 Audi Engine Cooling Parts and more.

What is your return policy for Audi RS6 Engine Cooling Parts?

Advance Auto Parts keeps returns simple. For new Audi RS6 Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.