1999 Audi A8 Engine Cooling Parts
Keep Your 1999 Audi A8 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 1999 Audi A8 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Thermostats, Radiator Cap Adapters, and Water Outlets. 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 1999 Audi A8 Engine Cooling Part at Advance Auto Parts is around $48.49, with a range that starts at $8.99 and goes up to $159.99. With 9 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Standard Thermostat: 180 Degrees, Standard Thermostat: 198 Degrees, and Standard Thermostat: 170 Degrees start at just $17.99 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 Blower Motor and Related Products and HVAC Electrical Parts. At Advance Auto Parts, we’re here to help you keep your 1999 Audi A8 in peak condition, inside and out.
Find Your Specific 1999 Audi A8 Engine Cooling Parts
Looking for the perfect Engine Cooling Part for your 1999 Audi A8? You’re in the right place. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Engine Cooling Parts, ensuring durability and a precise fit for your Audi A8. Whether you’re driving a 1999 model or another popular model year like
1997 and
1998, we’ve got you covered. Purchasing Engine Cooling Parts from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle.
Essential 1999 Audi A8 Engine Cooling Parts
Dorman – Radiator Fan Assembly: Single, Cost Effective and Reliable (Part No.620-800)
from
$142.99
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:
See More
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
Carquest Premium – Radiator Adapter (Part No.3117)
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:
See More
Product Features:
- Machined metal construction
- Works with MT-300 pressure tester
- Tests coolant caps
- Professional quality
Carquest Premium – Radiator Cap Adapter (Part No.12017)
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:
See More
Product Features:
- Machined metal construction
- Works with MT-300 pressure tester
- Tests coolant caps
- Professional quality
Carquest Premium – Thermostat (Part No.48049)
from
$32.49
Original equipment design provides exact fit and performance.
Product Features:
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Product Features:
- Precise fitting sealing edges prevent leakage and premature cooling.
- Self-cleaning and self-aligning thermostat valve.
- Stainless steel assembly and springs are engineered for long life and smooth performance.
Motorad – Standard Thermostat: 170 Degrees (Part No.304-170)
from
$22.99
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:
See More
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
Motorad – Standard Thermostat: 180 Degrees (Part No.304-180)
from
$25.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
See More
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
Carquest Premium – Standard Thermostat: 198 Degrees (Part No.14099)
from
$17.99
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:
See More
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
Carquest Premium – Coolant Housing/Water Outlet: With Gasket (Part No.CH6088)
from
$15.99
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:
See More
Product Features:
- Easy, one step fit and installation
- No special tools required
- Meets or exceeds all OEM standards
Product Features:
Carquest Premium – Radiator Cap: 16 PSI (Part No.10225)
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:
See More
Product Features:
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Popular 1999 Audi A8 Engine Cooling Parts Categories
Most Popular Thermostats for 1999 Audi A8s
Enhance your 1999 Audi A8 with one of the 4 Thermostats we have in stock, starting at just $17.99.
Motorad – Standard Thermostat: 180 Degrees (Part No.304-180)
from
$25.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
See More
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
Carquest Premium – Standard Thermostat: 198 Degrees (Part No.14099)
from
$17.99
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:
See More
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
Motorad – Standard Thermostat: 170 Degrees (Part No.304-170)
from
$22.99
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:
See More
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
Carquest Premium – Thermostat (Part No.48049)
from
$32.49
Original equipment design provides exact fit and performance.
Product Features:
See More
Product Features:
- Precise fitting sealing edges prevent leakage and premature cooling.
- Self-cleaning and self-aligning thermostat valve.
- Stainless steel assembly and springs are engineered for long life and smooth performance.
Best-Selling 1999 Audi A8 Radiator Cap Adapters
Upgrade your A8 with one of our 2 best-selling Radiator Cap Adapters.
Carquest Premium – Radiator Adapter (Part No.3117)
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:
See More
Product Features:
- Machined metal construction
- Works with MT-300 pressure tester
- Tests coolant caps
- Professional quality
Carquest Premium – Radiator Cap Adapter (Part No.12017)
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:
See More
Product Features:
- Machined metal construction
- Works with MT-300 pressure tester
- Tests coolant caps
- Professional quality
Top-Quality Water Outlets for 1999 Audi A8s
Choose a high-quality OEM or aftermarket Water Outlet for Audi A8s and enjoy top-notch performance from $15.99.
Carquest Premium – Coolant Housing/Water Outlet: With Gasket (Part No.CH6088)
from
$15.99
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:
See More
Product Features:
- Easy, one step fit and installation
- No special tools required
- Meets or exceeds all OEM standards
Our Top Pick for a 1999 Audi A8 Coolant Reservoir Cap
Invest in a
durable Coolant Reservoir Cap for your 1999 Audi, knowing you’re getting trusted brands and expert craftsmanship.
Carquest Premium – Radiator Cap: 16 PSI (Part No.10225)
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:
See More
Product Features:
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Our Radiator Fan Motors for 1999 Audi A8s
Make a smart move for your 1999 Audi A8 with our Radiator Fan Motor for $142.99.
Dorman – Radiator Fan Assembly: Single, Cost Effective and Reliable (Part No.620-800)
from
$142.99
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:
See More
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
FAQs for 1999 Audi A8 Engine Cooling Parts
What are the best-selling Engine Cooling Parts for 1999 Audi A8s?
Out of 9 Engine Cooling Parts that fit 1999 Audi A8s, the following parts are the top sellers:
- Standard Thermostat: 180 Degrees (11357660) – $25.99
- Standard Thermostat: 198 Degrees (5481252) – $17.99
- Standard Thermostat: 170 Degrees (11921780) – $22.99
What’s the price range for 1999 Audi A8 Engine Cooling Parts?
The prices of Engine Cooling Parts for the 1999 Audi A8 range from $8.99 up to $159.99 for the most premium parts.
What is the average price of an Engine Cooling Part for a 1999 Audi A8?
The average price for Engine Cooling Parts for the 1999 Audi A8 is $48.49. 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 1999 Audi A8?
The cheapest 1999 Audi A8 Engine Cooling Parts we carry are:
- Radiator Cap: 16 PSI (10049272) – $8.99
- Radiator Cap Adapter (17090200) – $8.99
- Coolant Housing/Water Outlet: With Gasket (50184030) – $15.99
- Standard Thermostat: 198 Degrees (5481252) – $17.99
- Standard Thermostat: 170 Degrees (11921780) – $22.99
Does Advance Auto Parts sell Engine Cooling Parts for any other 1999 Audi models?
Yes. We stock Engine Cooling Parts for 4 other popular 1999 Audi models. Some of the most popular are 1999 A4 Quattro Engine Cooling Parts, 1999 A4 Engine Cooling Parts, 1999 A6 Quattro Engine Cooling Parts, 1999 A6 Engine Cooling Parts, and 1999 A8 Quattro Engine Cooling Parts.
What types of Engine Cooling Parts do you sell for my 1999 Audi A8?
As of 11/2/25, these are some of the most in-demand types of Engine Cooling Parts for a 1999 Audi A8:
Can I get help with 1999 Audi A8 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 A8 Engine Cooling Parts?
Advance Auto Parts keeps returns simple. For new Audi A8 Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.