Audi A4 Engine Cooling Parts

Your One-Stop Shop For Trusted Audi A4 Engine Cooling Parts

If you’re in search of Audi A4 Engine Cooling Parts aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 141 Engine Cooling Parts from top brands with prices ranging from $2.49 to $738.99.

Beyond great prices, we stock trusted brands manufacturing all types of Engine Cooling Parts for your Audi A4.

And don’t forget to read customer reviews across all Engine Cooling Parts categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Engine Cooling Parts have to cost top dollar, and we prove it. Browse our top Audi A4 Engine Cooling Parts below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Please Select your Vehicle to See Exact Fit Parts

Essential Audi A4 Engine Cooling Parts

Felpro – Engine Coolant Thermostat Housing Seal (Part No.35924)

Engine Coolant Thermostat Housing Seal

from

$3.99
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.

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 Adapter (Part No.12037)

Radiator Cap 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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Carquest Premium – Radiator (Part No.432598)

Radiator

from

$185.99
Carquest Premium Radiators offer one of the largest product ranges in the aftermarket, covering more than 95% of the popular automotive and light truck applications. Carquest Premium Radiators meet or exceed original equipment specifications, ensuring that products fit and perform just as well or better than the original parts, providing you peace of mind.

Product Features:
  • Our B-type tubes feature central reinforcement to provide greater tolerance to pressure. Stronger tube design means drastically reduced probability of tube failure.
  • Our deep extrusion header provides a stronger tube to header joint which is more resistant to the effects of vibration and thermal tube expansion, virtually eliminating tube to header leaks.
  • Our fin edges are folded for increased stability and heat disbursement properties.
  • Our included “multi-fit” attachments allow one radiator to cover multiple vehicle applications without sacrificing OE fit. This results in wider vehicle coverage with substantially less inventory.
  • Thermal expansion cuts allow for longer life and reduce failure rates by allowing improved core expansion and contraction during normal heat cycles.
  • We design and manufacture all our radiators to meet or even exceed Original Equipment specifications. We take pride in producing the most reliable replacement parts in the market.
  • We use longer header tabs for increased pressure resistance. This reduces the potential for tank to header leaks.
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URO Parts – Auxiliary Fan Switch, Includes oring seal (Part No.8D0959481B)

Auxiliary Fan Switch, Includes oring seal

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 ¿Genuine¿ 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.

Product Features:
  • Guaranteed fitment
  • Direct-fit OE replacement design restores factory cooling fan switch function
  • Easy plug-and-play connection
  • Manufactured using high-quality materials to withstand intense engine compartment and cooling system heat
  • Alloy conductors minimize electrical resistance for accurate operation
  • Designed and tested for reliability and long life
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Rein – Water Pump Kit (Part No.WPU0016)

Water Pump Kit

from

$365.99
Rein Automotive OE quality water pump kits are designed to be direct replacements for OE water pumps and water pump assembles. Rein water pumps are made to original casting specifications to ensure proper fitment for easy installation, proper water flow and maximum cooling. Pumps include the necessary OE style gaskets and/or o-rings to replace the old worn out parts. Seals are made from a high quality silicate carbide compound. Bearings of OE design and materials are also used to meet or exceed OEM standards and ensure long service life. Our quality water pumps aim to provide the professional repair technician and vehicle owner the peace of mind and trust that is expected from an OE quality component, and are backed by 4 years and 50,000 mile Limited Warranty. Please read and follow all enclosed instructions to maximize pump life and validate Limited Warranty.

Product Features:
  • Pump is produced with silicon carbide seals providing improved durability and service life
  • Pump uses OE designed bearings by ensuring to extend pumps service life
  • Pumps backed by 4 years and 50,000 mile Limited Warranty
  • Read and follow all enclosed instructions to maximize pump life and to qualify for extended Limited Warranty
  • Includes complete assembly, balance shaft belt and hardware to replace all wearable parts for easy installation
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Victor Reinz – Engine Coolant Thermostat Housing Seal (Part No.41-76149-00)

Engine Coolant Thermostat Housing Seal

from

$4.29
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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Carquest Premium – Multi-Purpose Relay (Part No.RAA1882)

Multi-Purpose Relay

from

$19.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
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Carquest Premium – Engine Cooling Fan Module (Part No.RAE3022)

Engine Cooling Fan Module

from

$738.99
All modern vehicles consist of several independent operating systems controlled by a main system processor with independent sub-processors. The sub-processors provide class 2 serial information data to the main processor while handling the operation of the system and carry the circuit load to protect the main operating system. When replacing any level processor programming may be needed to enter the unit into the vehicles main operating system.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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Rein – Hardware Bolt (Part No.HWB0080)

Hardware Bolt

from

$3.99
Rein OE quality water pump mounting bolts are manufactured with premium materials and are direct replacements for the OE. Set includes all necessary bolts to complete a specific repair.

Product Features:
  • Ensures proper tightening and retention of the water pump
  • Designed as direct-fit replacements to ensure trouble-free proper installations
  • Manufactured to strict engineering standards and specifications in materials and tolerances
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URO Parts – Water Pump Pulley (Part No.06E121031E)

Water Pump Pulley

from

$30.99
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 ¿Genuine¿ 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.

Product Features:
  • Guaranteed fitment
  • Manufactured to OE water pump pulley dimensions for proper clearances and belt alignment
  • High-strength alloy or composite pulley construction withstands brutal engine heat and vibration
  • Composite pulleys should be replaced at the same time as the water pump
  • Metal pulleys are protected with a durable corrosion-resistant surface coating
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Carquest Premium – Radiator Coolant Hose Flange: With Seal (Part No.CH2886)

Radiator Coolant Hose Flange: With Seal

from

$11.99
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.

Product Features:


    Product Features:
    • Helps manage temps by routing coolant to multiple locations
    • Easy, one step fit and installation
    • No special tools required
    • Meets or exceeds all OEM standards
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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

$50.99
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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Felpro – Engine Coolant Outlet Gasket (Part No.36130)

Engine Coolant Outlet Gasket

from

$5.49
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.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
See More

Rein – Radiator Mount (Part No.AVM0716)

Radiator Mount

from

$5.99
Anti-vibration parts dampen vibration harmonics from the engine and drive line components to rest of the vehicle. This in turn reduces vibration and noise which can be felt and heard while the vehicle is in operation. Rein Automotive anti-vibration parts are application specific and match the design and function of the OE parts.

Product Features:
  • Rubber components match the shore hardness of the original equipment bushing to ensure maximum performance and product longevity.
  • Part has a high corrosion resistance for maximum life
  • Produced with high quality materials to ensure maximum life and a smooth ride
  • Made by the OE manufacturer
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Rein – Coolant Pipe (Part No.CHP0774)

Coolant Pipe

from

$40.99
Rein Automotive OE quality coolant pipes fit European vehicles the way the original manufacturer intended. Designed to be a direct replacements for the OE coolant, Rein coolant pipes are identical to the OEM.

Product Features:
  • Designed as direct-fit replacements to ensure trouble-free proper installation.
  • Made to strict engineering quality standards.
  • Part is produced using only the highest quality materials.
  • Resistant to heat, salt, road debris, oil and other contaminants.
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Carquest Premium – Radiator Adapter (Part No.3117)

Radiator Adapter

from

$159.99
Carquest tester adapter for the MT-300 cooling system pressure testers. Professional grade test equipment to ensure an automotive cooling system is operating at the correct pressure. Made from high quality materials to ensure durability. Designed to test automotive coolant caps.

Product Features:
  • Machined metal construction
  • Works with MT-300 pressure tester
  • Tests coolant caps
  • Professional quality
See More

URO Parts – Thermostat Assembly (Part No.06L121111P)

Thermostat Assembly

from

$241.99
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 ¿Genuine¿ 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.

Product Features:
  • Guaranteed fitment
  • High-flow OE-style design for optimal engine cooling performance
  • Thermostat housing assembly is manufactured to factory housing dimensions for easy bolt-on installation and reliable hose connections
  • Includes temperature sensor ports where applicable
  • High-quality alloy or composite material is temperature-stable to resist warping or cracking that can lead to coolant leakage
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Victor Reinz – Engine Water Pump Gasket (Part No.71-38928-00)

Engine Water Pump Gasket

from

$7.99
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.
See More

Carquest Premium – Coolant Housing/Water Outlet: Includes Seal (Part No.CH6001)

Coolant Housing/Water Outlet: Includes Seal

from

$33.99
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.

Product Features:
  • Easy, one step fit and installation
  • No special tools required
  • Meets or exceeds all OEM standards
See More

Dorman – Radiator Fan Assembly: Dual, Cost Effective and Reliable (Part No.620-839)

Radiator Fan Assembly: Dual, Cost Effective and Reliable

from

$301.99
This engine cooling fan assembly is precision-engineered to match the fit and performance of the stock radiator fan on specific vehicle years, makes and models. It has been rigorously tested to ensure it cools as effectively as the original part.

Product Features:
  • Ideal replacement – this engine cooling fan assembly was precision-engineered to match the fit and performance of the stock radiator fan assembly on specific vehicles
  • Complete package – assembly is designed with the same materials and components as the original part
  • Quality assured – motors are tested in laboratory settings to ensure performance
  • Cost effective and reliable – trustworthy manufacturing for far less than same part at the dealership
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Felpro – Engine Coolant Thermostat Housing Seal (Part No.35705)

Engine Coolant Thermostat Housing Seal

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.

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
See More

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

Expansion Tank Cap

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 ¿Genuine¿ 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.

Product Features:
  • Guaranteed fitment
  • Precision-molded to OE cap dimensions to ensure compatibility with original and aftermarket coolant recovery tanks
  • Quality cap and seal materials resist engine heat and harsh cooling system environment
  • Factory pressure-tested
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Carquest Premium – Engine Auxiliary Water Pump_New (Part No.T1375)

Engine Auxiliary Water Pump_New

from

$433.99
This new pump is 100% tested to ensure the highest quality. Each unit is built to meet or exceed all OE specifications and is validated for fit, form, and function. Application specific design to ensure a perfect fit and correct operation for unsurpassed quality.

Product Features:
  • Electric water pump
  • Specialized for vehicles using supplemented cooling for the engine or components
  • Plastic housing
  • All components necessary for installation are supplied with pump
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Felpro – Engine Coolant Thermostat Gasket (Part No.36131)

Engine Coolant Thermostat Gasket

from

$6.49
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.

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
  • Validated for fit, form, and function
See More

Felpro – Multi-Purpose O-Ring (Part No.35675)

Multi-Purpose O-Ring

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.

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
See More

Engine Cooling Parts Brands You Can Trust For Your Audi A4

13 trusted brands of Engine Cooling Parts line our shelves, ready to help keep your Audi A4 running smooth. Below are some of the most popular brands and their top Engine Cooling Parts offerings:

Popular MAHLE Original Engine Cooling Parts

MAHLE Original products for the Audi A4 span several categories. Some of the highest-rated MAHLE Original Engine Cooling Parts that will fit your Audi A4 are:
Engine Coolant Thermostat Housing Gasket
from $2.49
(1)
Engine Coolant Thermostat Housing Gasket
Thermostat Housing Gaskets

Most Purchased Audi A4 Engine Cooling Parts from Carquest Premium

When you buy the most frequently purchased Carquest Premium brand Engine Cooling Parts, you can be confident it will be the right part for your Audi A4. Here are the Carquest Premium Engine Cooling Parts Advanced Auto customers buy the most:
Engine Water Pump: New, Gasket/Seals Included
from $74.99
(8)
Engine Water Pump: New, Gasket/Seals Included
Water Pumps
Radiator
from $244.99
(5)
Radiator
Radiators
Standard Thermostat: 192 Degrees
from $25.99
(49)
Standard Thermostat: 192 Degrees
Thermostats

FAQs for Audi A4 Engine Cooling Parts

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

Out of 141 Engine Cooling Parts for the Audi A4, the most popular in our inventory are:
Standard Reservoir Cap: 20 PSI
from $13.99
(3)
Standard Reservoir Cap: 20 PSI
Coolant Reservoir Caps
Coolant Temperature Sensor 1TS1008
from $18.99
This product is not rated
Coolant Temperature Sensor 1TS1008
Coolant Temperature Sensors
Standard Thermostat: 180 Degrees
from $24.99
(8)
Standard Thermostat: 180 Degrees
Thermostats

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

Top-rated Engine Cooling Parts for your Audi A4 based on customer reviews/ratings are:
Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement
from $51.99
(15)
Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement
“Got it quick and that was good cause car was sitting in parking lot next to trailer park… Fixed in parking lot, frilled with green goo and on my wa”
Radiator
from $216.99
(7)
Radiator
“Perfect fit for my B5.5 Passat 2.8L 5spd manual trans even tho it’s for an auto car.”
Radiator
from $244.99
(5)
Radiator
“this radiator works great for my 02 Audi A4 Quattro easy to install Perfect Fit”