2005 Audi A6 Quattro Engine Cooling Parts

Please Select your Vehicle to See Exact Fit Parts

Keep Your 2005 Audi A6 Quattro 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 2005 Audi A6 Quattro looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Radiators, Thermostat and Water Outlet Assemblies, and Thermostat and Water Outlet Gaskets. 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. For example, Carquest Premium Engine Cooling Parts start at just $13.99 with an average 4.4 star rating. With over 6 reviews and a solid 5 star average, you can shop with confidence knowing other Audi A6 Quattro owners approve.

Explore Related Parts

While you’re upgrading or replacing your Engine Cooling Part, don’t forget to check out other key components like Blower Motor and Related Products and HVAC Electrical Parts. At Advance Auto Parts, we’re here to help you keep your 2005 Audi A6 Quattro in peak condition, inside and out.

Essential 2005 Audi A6 Quattro Engine Cooling Parts

Dorman – Radiator Fan Assembly: Dual, Cost Effective and Reliable (Part No.620-835)

Radiator Fan Assembly: Dual, Cost Effective and Reliable

from

$353.99
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
See More

Dorman – Radiator Fan Assembly: Single, Cost Effective and Reliable (Part No.620-833)

Radiator Fan Assembly: Single, Cost Effective and Reliable

from

$131.99
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
See More

URO Parts – Coolant Flange (Part No.06E121168B)

Coolant Flange

from

$31.99
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
  • Hose Flange is manufactured to OE dimensions for easy bolt-on installation and reliable hose connections
  • High-quality composite material (part numbers ending in “PRM” are aircraft-quality aluminum) resists warping or cracking that leads to dangerous coolant leakage
See More

URO Parts – Coolant Flange (Part No.06H121132H)

Coolant Flange

from

$10.99
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
  • Hose Flange is manufactured to OE dimensions for easy bolt-on installation and reliable hose connections
  • High-quality composite material (part numbers ending in “PRM” are aircraft-quality aluminum) resists warping or cracking that leads to dangerous coolant leakage
See More

Felpro – Engine Coolant Outlet Gasket (Part No.36193)

Engine Coolant Outlet Gasket

from

$4.99
Engine Coolant Outlet Gasket

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

Engine Coolant Thermostat Housing Gasket

from

$2.49
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:
  • All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
  • MAHLE gaskets is the leader in Domestic, Asian and European applications
  • The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
See More

Victor Reinz – Engine Coolant Thermostat Housing Gasket (Part No.71-39052-00)

Engine Coolant Thermostat Housing Gasket

from

$29.99
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

Rein – Solenoid Valve (Part No.EPV0237)

Solenoid Valve

from

$68.99
Solenoid Valve

KAI – Radiator (Part No.RAD2912)

Radiator

from

$333.99
New Platinum Pro Radiator 4.2 And 5.0 Liter Engines

Product Features:
  • Made Of Plastic and Aluminum
  • 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
  • Warranty: 5 Year, Limited
  • Radiator Cap Not Included
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

Carquest Premium – Radiator (Part No.813278)

Radiator

from

$245.99
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.
See More

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.
See More

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

Engine Coolant Temperature Sensor

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.

Product Features:
  • OE MATCHED: Wires and probe length match OE. Mounting clips included where applicable
  • FASTER RESPONSE TIME: Thermal conductive grease inside brass housing increases sensor response time
  • THE 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
See More

Carquest Premium – Coolant Temperature Sensor (Part No.WTC2065)

Coolant Temperature Sensor

from

$29.99
Approved materials for increased durability in even the most extreme temperatures. All MotoRad Coolant Temperature Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:
  • 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
  • Thread Sealant and/or O-ring pre-installed on applicable sensors to ensure leak free performance
  • Brass sensor housing precision machined to meet or exceed OE thermal conductivity
  • OE precision matched thermistor position for correct output parameters
  • Extensive product testing includes salt spray, high/low temperature impact, thermal vibration, durability, static electricity, and micro tension, among other tests, to ensure all sensors meet or exceed OEM specifications.
See More

Motorad – Integrated Thermostat Housing: With Seal, 192 Degrees (Part No.506-192)

Integrated Thermostat Housing: With Seal, 192 Degrees

from

$79.99
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

Product Features:


    Product Features:
    • High grade stainless steel and copper construction
    • Meets or exceeds OEM standards
    • Consistent and precise response to cooling system needs
    • Original equipment design for worry-free direct fit replacement
    • 100% tested and calibrated
See More

Motorad – Integrated Thermostat Housing: With Seal, 198 Degrees (Part No.914-198)

Integrated Thermostat Housing: With Seal, 198 Degrees

from

$67.99
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

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

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
See More

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
See More

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
See More

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
See More

URO Parts – Water Pump w/Gasket, w/ Metal Impeller (Part No.06E121018A)

Water Pump w/Gasket, w/ Metal Impeller

from

$33.99
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:
  • Equipped with metal impeller for efficient flow and greater durability (OE plastic impellers can shatter and clog cooling system passages with broken pieces)
  • Guaranteed fitment
  • Manufactured to OE dimensions for easy installation and proper pulley alignment
  • Constructed of high-strength alloy and composite materials (where applicable)
  • Quality bearings and seals for long-term reliability
  • Function-tested for performance
See More

Carquest Premium – Engine Water Pump: New (Part No.T2345)

Engine Water Pump: New

from

$131.99
The Carquest New Water Pump features all new, original equipment-quality components for proper fit and long-life performance. Each pump includes heavy-duty unitized bearings, pressed-on hubs, precision machined housings, unitized seals and optimal impeller clearance, plus all new water pumps are 100% factory tested to assure the highest quality product. Each unit is built to meet or exceed all Original Equipment specifications and is validated for fit, form, and function. Also, application specific design to ensure a perfect fit and correct operation for unsurpassed quality that you can trust.

Product Features:
  • All gaskets or seals necessary for installation are supplied with pump
  • Durable housing features precisely machined mounting surfaces for proper sealing
  • Equipped with weep chamber or similar feature to help prevent unnecessary replacement
  • Timing belt should be replaced with the pump
  • This pump is driven by the timing belt
  • Additional Notes: Includes gasket
See More

Carquest Premium – Engine Water Pump: New (Part No.T1252)

Engine Water Pump: New

from

$233.99
This premium water pump uses new high-quality components and is designed to meet or exceed OE specifications. This pump is 100% tested to ensure quality. Bearings, gaskets, seals, impeller, hub and housing are all designed for long-lasting service life. All necessary gaskets and seals are included.

Product Features:
  • 100% tested for reliable performance
  • Durable housing features precisely machined mounting surface for proper sealing and fitment
  • Equipped with weep chamber or similar feature to help prevent unnecessary replacement
  • Included heavy-duty unitized bearings, pressed-on hubs and optimal impeller clearance for a long-lasting water pump
  • All gaskets or seals necessary for water pump are included
  • This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
  • This pump is driven by the timing chain; see vehicle manufacturer recommendation for replacement of timing components
  • This pump is driven by the timing belt; see vehicle manufacturer recommendation for replacement of timing components
  • Additional Notes: Includes gasket
See More

URO Parts – Water Pump, Includes gasket (Part No.06H121026BA)

Water Pump, Includes gasket

from

$29.99
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:
  • Includes gasket
  • Guaranteed fitment
  • Manufactured to OE dimensions for easy installation and proper pulley alignment
  • Constructed of high-strength alloy and composite materials (where applicable)
  • Quality bearings and seals for long-term reliability
  • Function-tested for performance
See More

Carquest Premium – Radiator Cap: 16 PSI (Part No.10225)

Radiator Cap: 16 PSI

from

$8.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Dorman – Help – Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack (Part No.54019)

Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack

from

$21.49
Cracked or lost the original engine coolant reservoir cap- Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.

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

Rein – Cap-Expansion Tank (Part No.CPE0047)

Cap-Expansion Tank

from

$19.99
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.
See More

Dorman – Help – Coolant Reservoir Cap (Part No.54016)

Coolant Reservoir Cap

from

$13.99
Cracked or lost the original engine coolant reservoir cap? Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.

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

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

Standard Reservoir Cap: 20 PSI

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.

Product Features:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Most Popular Radiators for 2005 Audi A6 Quattros

Enhance your 2005 Audi A6 Quattro with one of the 3 Radiators we have in stock, starting at just $269.99.

Carquest Premium – Radiator (Part No.812912)

Radiator

from

$374.99
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.
See More

KAI – Radiator (Part No.RAD2912)

Radiator

from

$333.99
New Platinum Pro Radiator 4.2 And 5.0 Liter Engines

Product Features:
  • Made Of Plastic and Aluminum
  • 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
  • Warranty: 5 Year, Limited
  • Radiator Cap Not Included
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

Carquest Premium – Radiator (Part No.812828)

Radiator

from

$269.99
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.
See More

Best-Selling 2005 Audi A6 Quattro Thermostat and Water Outlet Assemblies

Upgrade your A6 Quattro with one of our 4 best-selling Thermostat and Water Outlet Assemblies.

Motorad – Integrated Thermostat Housing: With Seal, 192 Degrees (Part No.506-192)

Integrated Thermostat Housing: With Seal, 192 Degrees

from

$79.99
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

Product Features:


Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

Motorad – Integrated Thermostat Housing: 189 Degrees (Part No.946-189)

Integrated Thermostat Housing: 189 Degrees

from

$196.99
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.

Product Features:
  • High grade stainless steel and copper construction
  • Meets or exceeds OEM standards
  • Consistent and precise response to cooling system needs
  • Original equipment design for worry-free direct fit replacement
  • 100% tested and calibrated
See More

Dorman – Thermostat Assembly: Includes Housing, Thermostat, and Gasket, 192 Degrees (Part No.902-718)

Thermostat Assembly: Includes Housing, Thermostat, and Gasket, 192 Degrees

from

$107.99
This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Product Features:
  • Ideal replacement – this engine coolant thermostat housing directly replaces the original housing 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 thermostat housings
See More

Rein – Thermostat Assembly 87C (Part No.CTA0022)

Thermostat Assembly 87C

from

$74.99
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 87 degrees Celsius to maintain optimal running temperature
See More

Top-Quality Thermostat and Water Outlet Gaskets for 2005 Audi A6 Quattros

Choose a high-quality OEM or aftermarket Thermostat and Water Outlet Gasket for Audi A6 Quattros and enjoy top-notch performance from $4.99.

Felpro – Engine Coolant Outlet Gasket (Part No.36193)

Engine Coolant Outlet Gasket

from

$4.99
Engine Coolant Outlet Gasket

Top Picks for 2005 Audi A6 Quattro Coolant Reservoir Caps

Invest in one of our 2 durable Coolant Reservoir Caps for your 2005 Audi, knowing you’re getting trusted brands and expert craftsmanship.

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

Standard Reservoir Cap: 20 PSI

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.

Product Features:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Rein – Cap-Expansion Tank (Part No.CPE0047)

Cap-Expansion Tank

from

$19.99
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.
See More

Water Pumps for 2005 Audi A6 Quattros

Make a smart move for your 2005 Audi A6 Quattro with products all priced from $33.99 to $105.99.

Carquest Premium – Engine Water Pump: New (Part No.T1220)

Engine Water Pump: New

from

$105.99
This premium water pump uses new high-quality components and is designed to meet or exceed OE specifications. This pump is 100% tested to ensure quality. Bearings, gaskets, seals, impeller, hub and housing are all designed for long-lasting service life. All necessary gaskets and seals are included.

Product Features:
  • 100% tested for reliable performance
  • Durable housing features precisely machined mounting surface for proper sealing and fitment
  • Equipped with weep chamber or similar feature to help prevent unnecessary replacement
  • Included heavy-duty unitized bearings, pressed-on hubs and optimal impeller clearance for a long-lasting water pump
  • All gaskets or seals necessary for water pump are included
  • This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
  • This pump is driven by the timing chain; see vehicle manufacturer recommendation for replacement of timing components
  • This pump is driven by the timing belt; see vehicle manufacturer recommendation for replacement of timing components
  • Additional Notes: Includes gasket
See More

URO Parts – Water Pump w/Gasket, w/ Metal Impeller (Part No.06E121018A)

Water Pump w/Gasket, w/ Metal Impeller

from

$33.99
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:
  • Equipped with metal impeller for efficient flow and greater durability (OE plastic impellers can shatter and clog cooling system passages with broken pieces)
  • Guaranteed fitment
  • Manufactured to OE dimensions for easy installation and proper pulley alignment
  • Constructed of high-strength alloy and composite materials (where applicable)
  • Quality bearings and seals for long-term reliability
  • Function-tested for performance
See More

Top-Rated Engine Cooling Part Brands For Your 2005 Audi A6 Quattro

When it comes to finding the perfect Engine Cooling Part for your 2005 Audi A6 Quattro, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 9 trusted brands. We carry the most popular Engine Cooling Part brands including Carquest Premium, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $13.99. Purchasing a Engine Cooling Part from us here at Advance Auto Parts is a smart move for both you and your 2005 Audi A6 Quattro, providing peace of mind with parts that meet or exceed OEM standards.

Popular Carquest Premium 2005 Audi A6 Quattro Engine Cooling Parts

If you’re looking for a top-quality Engine Cooling Part for your 2005 Audi A6 Quattro, 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 2005 Audi A6 Quattro come highly rated, with over 3 customer reviews and an impressive average rating of 4.4 stars. Choosing a Carquest Premium Engine Cooling Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Standard Reservoir Cap: 20 PSI
from $13.99
(3)
Standard Reservoir Cap: 20 PSI
“Great price”

FAQs for 2005 Audi A6 Quattro Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 2005 Audi A6 Quattros?

Out of 25 Engine Cooling Parts that fit 2005 Audi A6 Quattros, the following parts are the top sellers:

What’s the price range for 2005 Audi A6 Quattro Engine Cooling Parts?

The prices of Engine Cooling Parts for the 2005 Audi A6 Quattro range from $3.49 up to $374.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 2005 Audi A6 Quattro?

The average price for Engine Cooling Parts for the 2005 Audi A6 Quattro is $77.83. 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 Audi A6 Quattro model years?

Yes, we carry Engine Cooling Parts for 29 model years of Audi A6 Quattros between 1995 and 2025. The following model years are the most popular for Engine Cooling Part purchases: 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Engine Cooling Parts for my 2005 Audi A6 Quattro?

The cheapest 2005 Audi A6 Quattro Engine Cooling Parts we carry are:

Does Advance Auto Parts sell Engine Cooling Parts for any other 2005 Audi models?

Yes. We stock Engine Cooling Parts for 6 other popular 2005 Audi models. Some of the most popular are 2005 S4 Engine Cooling Parts, 2005 A4 Quattro Engine Cooling Parts, 2005 A4 Engine Cooling Parts, 2005 TT Quattro Engine Cooling Parts, and 2005 A8 Quattro Engine Cooling Parts.

What types of Engine Cooling Parts do you sell for my 2005 Audi A6 Quattro?

As of 3/1/26, these are some of the most in-demand types of Engine Cooling Parts for a 2005 Audi A6 Quattro:

Can I get help with 2005 Audi A6 Quattro 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 A6 Quattro Engine Cooling Parts?

Advance Auto Parts keeps returns simple. For new Audi A6 Quattro Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.