2003 Audi A4 Engine Cooling Parts

Essential 2003 Audi A4 Engine Cooling Parts

Stribel – Stribel Auxiliary Fan Control Unit (Part No.G5007167102STR)

Stribel Auxiliary Fan Control Unit

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$214.18
The Stribel Auxiliary Fan Control Unit is manufactured to OE specifications and is a direct fit replacement. The auxiliary fan control unit controls the cooling fans on your vehicle. Failure of this unit can cause your radiator cooling fans to not operate properly, leading to engine overheating and failure.

Product Features:
  • OE Quality and Direct Fit Application
  • Supplied with Factory Mounting and Connectors
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KAI – Dual Fan Asm 1.8/2.0L L4 Eng (Part No.AU3115107)

Dual Fan Asm 1.8/2.0L L4 Eng

from

$214.99
New Platinum Pro Radiator And Condenser Fan Assembly, 1.8/2.0 Liter L4 Engines

Product Features:
  • 1.8 And 2.0 Liter L4 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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ACM – A/C Servo (Part No.R20401762458ACM)

A/C Servo

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$168.92
A/C Servo

Rein – OE Quality Thermostat Assembly (Part No.CTA0013)

OE Quality Thermostat Assembly

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$44.99
Rein Automotive® OE quality thermostat assemblies install, fit and perform the way the original manufacturer intended. These assemblies are designed to meet or exceed the OE materials used. Rein thermostat housings are constructed of metal or plastic based on vehicle specific factory requirements. The housings are constructed from molds cast directly from the OEM parts to meet the strict tolerances of the vehicle’s factory specifications. This ensures a smooth and easy installation, just as one would expect to find with OE quality. Rein thermostats are produced with high-quality metals and components to ensure proper durability and service life. The thermostats are temperature calibrated to have a consistent and precise response suiting cooling system needs. Our quality thermostat assemblies aim to provide the profession repair technician and vehicle owner the peace of mind and trust that is expected from an OE quality component.

Product Features:
  • Matches original equipment design specifications
  • Direct fitments allows easy installation
  • Manufactured to strict engineering standards/specifications in materials and tolerances
  • Thermostat set to 92 degrees Celsius to maintain optimal running temperature
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Rein – Cap-Expansion Tank (Part No.CPE0047)

Cap-Expansion Tank

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$16.99
Rein Automotive OE Quality expansion tank caps are designed to be direct replacements for OE caps. Rein caps are designed to match or exceed the OE materials used and are produced to the highest standards to ensure long service life. Rein Automotive OE quality expansion tank caps keep the coolant system at the proper pressure just like the OE cap.

Product Features:
  • Manufactured to strict engineering standards/specifications in materials and tolerances.
  • Direct fit
  • Meets or exceeds pressure specifications demanded by the OE manufacturer.
  • Produced by an original equipment supplier.
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Elth – Water Temp. Sensor (Part No.C6020111921ELT)

Water Temp. Sensor

from

$16.02
Water Temp. Sensor

Dorman – Engine Coolant Water Outlet (Part No.902-904)

Engine Coolant Water Outlet

from

$20.49
This replacement engine coolant water outlet is engineered to match the fit and durability of the stock engine coolant water outlet on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Product Features:
  • Ideal replacement – this engine coolant water outlet directly replaces the original water outlet on specified vehicle years, makes and models
  • Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
  • Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
  • Industry-leading design – professionally engineered by the aftermarket leader in replacement water outlets
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Geba – Water Pump (Part No.G3000179096GEB)

Water Pump

from

$70.55
Water Pump

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

Engine Coolant Temperature Sensor

from

$33.99
The Engine Coolant Temperature Sensor determines the exact temperature of the engine coolant by sending an analog signal to the ECM to censure proper air/fuel ratio along with proper operation of the cooling fan(s) 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.

Product Features:
  • OE MATCHED: Wires and probe length match OE. Mounting clip(s) included where applicable
  • FASTER RESPONSE TIME: Thermal conductive grease inside brass housing increases sensor response time
  • THE NTK DIFFERENCE: Thread sealant/o-ring installed where applicable. Thermistor placement within the housing matches OE to ensure proper output. Proper thermal conductive grease to provide accurate temperature transfer to the thermistor
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Victor Reinz – Engine Coolant Thermostat Housing Seal (Part No.41-76149-00)

Engine Coolant Thermostat Housing Seal

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$3.99
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.

Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
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Felpro – Multi-Purpose O-Ring (Part No.25589)

Multi-Purpose O-Ring

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$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
  • Manufactured for the sealing repair environment
  • Validated for fit, form, and function
  • Quality that you can trust
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Permatex – Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ (Part No.22071)

Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ

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$6.99
Permatex Water Pump & Thermostat RTV Silicone Gasket Maker is a noncorrosive, sensor-safe RTV silicone gasket material formulated for water pumps and thermostat housings. Permatex Water Pump & Thermostat has the highest water-glycol resistance available in an RTV silicone.

Product Features:
  • Sensor-safe, noncorrosive RTV silicone gasket material
  • Formulated specifically for water pumps and thermostat housings
  • Highest water-glycol resistance available in RTV silicone
  • Superior adhesion and flexibility
  • Can be used as a gasket maker or dressing
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Motorad UltraStats – Thermostat: 192 Degrees (Part No.5475-190)

Thermostat: 192 Degrees

from

$21.99
This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

Product Features:
  • Heavy gauge stainless steel components offer increased reliability and long-lasting durability
  • Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
  • Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
  • AccuSpring Design for stable temperature control and increased cabin comfort
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Permatex – Ultra Grey RTV Silicone Gasket Maker, 13 OZ (Part No.82195)

Ultra Grey RTV Silicone Gasket Maker, 13 OZ

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$26.99
Permatex Ultra Grey is specified for high torque and high vibration applications. Ultra Grey offers a sensor-safe, low odor, non-corrosive formula and is OEM specified to fit dealership warranty requirements. This high performance gasket maker meets performance specs of OE silicone gaskets and can be used on high torque and vibration applications such as valve covers, water pump, intake manifold end seals ad thermostat housings.

Product Features:
  • High torque and rigidity
  • Sensor-safe, non-corrosive formula
  • OEM specified
  • Low-odor, non-corrosive formula
  • Ideal for closed spaced bolt patterns
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Rein – Relay (Part No.ELR0054)

Relay

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.

Product Features:
  • Tested to ensure maximum performance
  • Manufactured to strict engineering standards/specifications in materials and tolerances
  • Long life and durability
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Permatex – The Right Stuff: Grey, 1 Minute Gasket Maker, 10 OZ (Part No.34310)

The Right Stuff: Grey, 1 Minute Gasket Maker, 10 OZ

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$38.99
Permatex’s The Right Stuff 1 Minute Series offers the fastest return to service in just 1 minute! This leak-proof, elastomeric “Formed-in-place” material is more reliable and longer lasting than pre-cut gaskets. It is blowout resistant and protects against leaks and seepage caused by vibration and thermal expansion. The Right Stuff 1 Minute Grey is specified for high torque and high vibration applications and is formulated to meet or exceed performance standards for long-term sealability, durability and handling.

Product Features:
  • Designed to perform under higher torque loads associated with engines having closely spaced bolt patterns
  • Sensor-safe, non-corrosive, RTV silicone
  • Protects against leaks caused by vibration and thermal expansion
  • Meets performance specs of OE silicone gaskets
  • Quickly returns vehicle to service in just 1 minute
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Dorman – Engine Coolant Water Outlet (Part No.902-886)

Engine Coolant Water Outlet

from

$10.49
This replacement engine coolant water outlet is engineered to match the fit and durability of the stock engine coolant water outlet on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Product Features:
  • Ideal replacement – this engine coolant water outlet directly replaces the original water outlet on specified vehicle years, makes and models
  • Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
  • Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
  • Industry-leading design – professionally engineered by the aftermarket leader in replacement water outlets
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Febi – Water Temperature Sensor O-Ring (Part No.C606032192FEB)

Water Temperature Sensor O-Ring

from

$1.83
Water Temperature Sensor O-Ring

Behr – Radiator (Part No.G100056612BEH)

Radiator

from

$200.72
Aluminum Core Radiator The Behr replacement radiator guarantees the same quality fit and performance as the OE radiator it replaces. The Behr radiator core is manufactured using high quality anti corrosive aluminum and fiber glass-reinforced polyamide coolant tanks that are highly resistant to cracking and deformation.

Product Features:
  • OE-Equivalent
  • Direct fit for easy installation.
  • High quality corrosion resistant materials.
  • OE Style mounting brackets and hose connections.
  • Mechanically bonded aluminum core.
  • Integrated transmission oil cooler when applicable.
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Behr – Auxiliary Fan Assemb (Part No.G5000147278BEH)

Auxiliary Fan Assemb

from

$220.20
Auxiliary Fan Assemb

Permatex – The Right Stuff: 1 Minute Gasket Maker: Grey, 3 OZ (Part No.25238)

The Right Stuff: 1 Minute Gasket Maker: Grey, 3 OZ

from

$19.99
Permatex’s The Right Stuff 1 Minute Series offers the fastest return to service in just 1 minute! This leak-proof, elastomeric “Formed-in-place” material is more reliable and longer lasting than pre-cut gaskets. It is blowout resistant and protects against leaks and seepage caused by vibration and thermal expansion. The Right Stuff 1 Minute Grey is specified for high torque and high vibration applications and is formulated to meet or exceed performance standards for long-term sealability, durability and handling.

Product Features:
  • Designed to perform under higher torque loads associated with engines having closely spaced bolt patterns
  • Sensor-safe, non-corrosive, RTV silicone
  • Protects against leaks caused by vibration and thermal expansion
  • Meets performance specs of OE silicone gaskets
  • Quickly returns vehicle to service in just 1 minute
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Permatex – Ultra Grey RTV Gasket Maker (9.5 oz.) (Part No.85084)

Ultra Grey RTV Gasket Maker (9.5 oz.)

from

$32.99
OEM specified. Designed specially for high-torque and high vibration applications, like those common in import engines, this premium RTV gasket maker exceeds manufacturers’ performance requirements. Sensor-safe, low odor, and non-corrosive. Maximum vibration resistance, with outstanding resistance to oils, cooling and shop fluids. Temperature range -65ºF to 500ºF (-54 Deg. C to 260 Deg. C) intermittent.

Product Features:
  • Designed specially for high-torque and high vibration applications
  • Maximum vibration resistance with outstanding resistance to oils, cooling and shop fluids
  • OEM specified
  • Low-odor, non-corrosive formula
  • Temperature Range: -65 Deg. F to 500 Deg. F (-54 Deg. C to 260 Deg. C)
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Felpro – Multi-Purpose O-Ring (Part No.35675)

Multi-Purpose O-Ring

from

$2.29
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 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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Carquest Premium – Radiator Cap Tester Adapter (Part No.12017)

Radiator Cap Tester Adapter

from

$7.29
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.

Product Features:
  • Machined metal construction
  • Works with MT-300 pressure tester
  • Tests coolant caps
  • Professional quality
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Carquest Premium – Radiator Cap Tester Adapter (Part No.12037)

Radiator Cap Tester Adapter

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.

Product Features:
  • Machined metal construction
  • Works with MT-300 pressure tester
  • Tests coolant caps
  • Professional quality
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Meyle – Meyle Expansion Tank (Part No.G103056581MEY)

Meyle Expansion Tank

from

$55.49
The Meyle expansion tank is made of the highest quality materials and is engineered to meet or exceed the OEM specifications for performance, fit and durability.

Product Features:
  • OE-Equivalent and Direct Fit for easy Installation.
  • OE style connections and fittings.
  • Made of highly durable materials.
  • Resistant to thermal wear and cracking.
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Meyle – Meyle Expansion Tank (Part No.G1030116203MEY)

Meyle Expansion Tank

from

$47.36
The Meyle expansion tank is made of the highest quality materials and is engineered to meet or exceed the OEM specifications for performance, fit and durability.

Product Features:
  • OE-Equivalent and Direct Fit for easy Installation.
  • OE style connections and fittings.
  • Made of highly durable materials.
  • Resistant to thermal wear and cracking.
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Dorman – Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement (Part No.603-638)

Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement

from

$47.99
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.

Product Features:
  • Direct replacement – this engine coolant reservoir matches the fit and function of the original part
  • Ideal solution – engineered for a seamless installation
  • Durable construction – manufactured from quality materials to withstand underhood heat and vibration
  • Trustworthy design – backed by 100 years of automotive aftermarket experience
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2003 Audi A4 Engine Cooling Parts

Maybe you’re in the middle of a full rebuild of that 2003 Audi A4. Maybe you just need a couple of Engine Cooling Parts. Either way, Advance Auto Parts has 73 different Engine Cooling Parts in our inventory ranging from $0.86 to $312.59. That means you can find the exact parts or products you need to keep that 2003 Audi A4 running smoothly.

Engine Cooling Parts are only as good as their brand. We stock 26 different brands to make sure you have plenty of trusted parts to choose from for your 2003 Audi A4. Permatex, Carquest Premium, and Carquest are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Engine Cooling Parts for your 2003 Audi A4, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 1,279 reviews in this category, some of the top rated parts include Radiator: With Transmission Oil Cooler with 4.0 stars and Radiator: With Transmission Oil Cooler with 1.8 stars.

So if you’re in the market for aftermarket Engine Cooling Parts to keep your 2003 Audi A4 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Engine Cooling Parts Brands To Make Your 2003 Audi A4 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 2003 Audi A4 demands trusted brand parts and products to keep it running. Many trusted brands of Engine Cooling Parts make up Advance Auto Parts’ inventory, and all are ready to help make your A4 the best it can be. Be sure to browse some of our top Engine Cooling Parts brands and parts.

Popular Beck/Arnley Engine Cooling Parts

We carry Beck/Arnley parts in our stock across Water Pumps categories, plus more. For a 2003 Audi A4, our most popular Beck/Arnley Engine Cooling Parts include:
New Water Pump
from $112.99
(1)
New Water Pump
Water Pumps

FAQs for 2003 Audi A4 Engine Cooling Parts

What are the most purchased Engine Cooling Parts for the 2003 Audi A4?

Out of 73 Engine Cooling Parts for the 2003 Audi A4, the most popular in our inventory are:
Engine Coolant Temperature Sensor
from $20.99
(3)
Engine Coolant Temperature Sensor
Coolant Temperature Sensors
Engine Coolant Reservoir Cap
from $11.99
(3)
Engine Coolant Reservoir Cap
Coolant Reservoir Caps
Coolant Temperature Sensor
from $29.99
This product is not rated
Coolant Temperature Sensor
Coolant Temperature Sensors

What are the top-rated 2003 Audi A4 Engine Cooling Parts?

Top-rated Engine Cooling Parts for your 2003 Audi A4 based on customer reviews/ratings are:
Radiator: With Transmission Oil Cooler
from $189.99
(7)
Radiator: With Transmission Oil Cooler
“Perfect fit for my B5.5 Passat 2.8L 5spd manual trans even tho it’s for an auto car.”
Radiator: With Transmission Oil Cooler
from $254.99
(5)
Radiator: With Transmission Oil Cooler
“this radiator works great for my 02 Audi A4 Quattro easy to install Perfect Fit”
Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement
from $47.99
(2)
Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement
“Fits, looks, like the OEM tank. Great price and quality part.”