1991 Audi Coupe Quattro Engine Cooling Parts

Keep Your 1991 Audi Coupe 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 1991 Audi Coupe Quattro looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Water Pumps, Coolant Temperature Sensors, and Thermostats. 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.

Competitive Prices and Extensive Inventory

The average price for a 1991 Audi Coupe Quattro Engine Cooling Part at Advance Auto Parts is around $36.32, with a range that starts at $3.99 and goes up to $159.99. With 13 options in stock from 5 trusted brands, finding the right fit is easy. Popular picks like Multi-Purpose O-Ring, Multi-Purpose O-Ring, and Radiator Cap: 16 PSI start at just $3.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Cooling Part, don’t forget to check out other key components like Air Conditioning Parts and Heating Parts. At Advance Auto Parts, we’re here to help you keep your 1991 Audi Coupe Quattro in peak condition, inside and out.

Essential 1991 Audi Coupe Quattro Engine Cooling Parts

Motorad – Standard Thermostat: 174 Degrees (Part No.247-174)

Standard Thermostat: 174 Degrees

from

$46.49
Manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. 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

Rein – Thermostat Insert 87C (Part No.CTI0007)

Thermostat Insert 87C

from

$14.99
Rein Automotive OE quality thermostat inserts install, fit and perform the way the original manufacturer intended. This ensures a smooth and easy installation, just as one would expect to find with OE quality. These inserts are designed to meet or exceed the OE materials used. 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 inserts aim to provide the profession repair technician and vehicle owner peace of mind and trust that is expected from an OE quality component.

Product Features:
  • Matches original equipment design specifications
  • All gaskets or seals necessary for installation are supplied with thermostats
  • Manufactured to strict engineering standards/specifications in materials and tolerances
  • Thermostat set to 87 degrees Celsius for optimal running temperature
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Carquest Premium – Engine Cooling Fan Switch (Part No.ACA1571)

Engine Cooling Fan Switch

from

$32.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Engine Cooling Fan Switch regulates the operation of the cooling fan based on engine temperature, preventing overheating and ensuring optimal engine performance by maintaining a safe operating temperature. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.

Product Features:
  • Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
  • Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
  • Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
  • Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
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Rein – Temperature Sensor Kit (Part No.ELC0047P)

Temperature Sensor Kit

from

$12.99
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
  • Made by the OE manufacturer
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Carquest Premium – Engine Cooling Fan Module (Part No.ACC1313)

Engine Cooling Fan Module

from

$99.99
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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Carquest Premium – New Premium Water Pump (Part No.T1103)

New Premium Water Pump

from

$50.99
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:
  • This pump is driven by the timing belt
  • Timing belt should be replaced with the pump
  • Note pulley config., using incorrect pump could result in severe engine damage
  • Equipped with weep chamber or similar feature to help prevent unnecessary replacement
  • All gaskets or seals necessary for installation are supplied with pump
See More

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

Radiator Cap Adapter

from

$8.99
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

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

Felpro – Multi-Purpose O-Ring (Part No.25589)

Multi-Purpose O-Ring

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
  • Manufactured for the sealing repair environment
  • Validated for fit, form, and function
  • Quality that you can trust
See More

Felpro – Multi-Purpose O-Ring (Part No.35763)

Multi-Purpose O-Ring

from

$4.49
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

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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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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Most Popular Water Pump for 1991 Audi Coupe Quattros

Enhance your 1991 Audi Coupe Quattro with this popular Water Pump we have in stock, for $50.99.

Carquest Premium – New Premium Water Pump (Part No.T1103)

New Premium Water Pump

from

$50.99
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:
  • This pump is driven by the timing belt
  • Timing belt should be replaced with the pump
  • Note pulley config., using incorrect pump could result in severe engine damage
  • Equipped with weep chamber or similar feature to help prevent unnecessary replacement
  • All gaskets or seals necessary for installation are supplied with pump
See More

Best-Selling 1991 Audi Coupe Quattro Coolant Temperature Sensor

Upgrade your Coupe Quattro with our best-selling Coolant Temperature Sensor.

Rein – Temperature Sensor Kit (Part No.ELC0047P)

Temperature Sensor Kit

from

$12.99
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
  • Made by the OE manufacturer
See More

Top-Quality Thermostats for 1991 Audi Coupe Quattros

Choose a high-quality OEM or aftermarket Thermostat for Audi Coupe Quattros and enjoy top-notch performance from $14.99.

Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13588)

Standard Thermostat: 180 Degrees

from

$22.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. 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

Motorad – Standard Thermostat: 174 Degrees (Part No.247-174)

Standard Thermostat: 174 Degrees

from

$46.49
Manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. 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

Rein – Thermostat Insert 87C (Part No.CTI0007)

Thermostat Insert 87C

from

$14.99
Rein Automotive OE quality thermostat inserts install, fit and perform the way the original manufacturer intended. This ensures a smooth and easy installation, just as one would expect to find with OE quality. These inserts are designed to meet or exceed the OE materials used. 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 inserts aim to provide the profession repair technician and vehicle owner peace of mind and trust that is expected from an OE quality component.

Product Features:
  • Matches original equipment design specifications
  • All gaskets or seals necessary for installation are supplied with thermostats
  • Manufactured to strict engineering standards/specifications in materials and tolerances
  • Thermostat set to 87 degrees Celsius for optimal running temperature
See More

Our Top Pick for a 1991 Audi Coupe Quattro Coolant Reservoir Cap

Invest in a durable Coolant Reservoir Cap for your 1991 Audi, knowing you’re getting trusted brands and expert craftsmanship.

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

Our Engine Coolant Pipe O-Rings for 1991 Audi Coupe Quattros

Make a smart move for your 1991 Audi Coupe Quattro with our Engine Coolant Pipe O-Ring for $3.99.

Felpro – Multi-Purpose O-Ring (Part No.25589)

Multi-Purpose O-Ring

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
  • Manufactured for the sealing repair environment
  • Validated for fit, form, and function
  • Quality that you can trust
See More

FAQs for 1991 Audi Coupe Quattro Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 1991 Audi Coupe Quattros?

Out of 13 Engine Cooling Parts that fit 1991 Audi Coupe Quattros, the following parts are the top sellers:

What’s the price range for 1991 Audi Coupe Quattro Engine Cooling Parts?

The prices of Engine Cooling Parts for the 1991 Audi Coupe Quattro range from $3.99 up to $159.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 1991 Audi Coupe Quattro?

The average price for Engine Cooling Parts for the 1991 Audi Coupe Quattro is $36.32. Keep in mind the variety of part types within our Engine Cooling Part category, where you are likely to find a wide range of prices across a variety of parts and components.

What are the cheapest Engine Cooling Parts for my 1991 Audi Coupe Quattro?

The cheapest 1991 Audi Coupe Quattro Engine Cooling Parts we carry are:

Does Advance Auto Parts sell Engine Cooling Parts for any other 1991 Audi models?

Yes. We stock Engine Cooling Parts for 8 other popular 1991 Audi models. Some of the most popular are 1991 V8 Quattro Engine Cooling Parts, 1991 100 Engine Cooling Parts, 1991 100 Quattro Engine Cooling Parts, 1991 90 Engine Cooling Parts, and 1991 90 Quattro Engine Cooling Parts.

What are the top-rated Engine Cooling Parts that fit the 1991 Audi Coupe Quattro?

The one 1991 Audi Coupe Quattro Engine Cooling Part we have in stock is the Multi-Purpose O-Ring. It costs $3.99.

What types of Engine Cooling Parts do you sell for my 1991 Audi Coupe Quattro?

As of 11/2/25, these are some of the most in-demand types of Engine Cooling Parts for a 1991 Audi Coupe Quattro:

Can I get help with 1991 Audi Coupe 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 Coupe Quattro Engine Cooling Parts?

Advance Auto Parts keeps returns simple. For new Audi Coupe 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.