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  3. AUDI 4H1819371B

AUDI 4H1819371B Heater Coolant Hose Line

fits model: S8, A8. make: Audi. year: 2013–2018.

4h1819371b Audi 2013-2018 S8 A8 Heater Coolant Return Hose Line #4h1819371b Oem

( Manufacturer Part Number: 4H1819371B ), ( Items Included: Hosing, Lines ), ( Vintage Part: No ), ( Placement On Vehicle: Engine Compartment ), ( Case: 3628 ), ( Type: Radiator ), ( Manufacturer Warranty: 3 Months ), ( Country Of Origin: Germany )

Review AUDI Heater Coolant Return Hose Line #4h1819371b Oem fits S8 A8 2013–2018

Introducing the Audi 4H1819371B Heater Coolant Hose Line, a premium replacement part designed specifically for Audi S8 and A8 models manufactured between 2013 and 2018. This heater coolant hose line is an essential component of your vehicle's cooling system, responsible for transporting coolant to the heater core to provide warm air inside the cabin.

Crafted from high-quality materials, this heater coolant hose line ensures reliable performance and durability. It features a robust and flexible design, allowing it to withstand the rigors of daily driving while effectively transferring coolant between the engine and the heater core.

The Audi 4H1819371B Heater Coolant Hose Line is engineered to meet or exceed OEM specifications. It is precision-molded using advanced techniques to ensure a perfect fit and seamless integration into your vehicle. The hose is reinforced with a layer of reinforcing material, providing added strength and resilience against potential damage.

One of the standout features of this heater coolant hose line is its resistance to common causes of hose failure, including high temperatures, pressure, and chemicals found in coolant. The hose is resilient to swelling, warping, and cracking, ensuring consistent performance even in the most demanding driving conditions.

Installation of the Audi 4H1819371B Heater Coolant Hose Line is a straightforward process, making it an excellent choice for DIY enthusiasts. Each hose comes complete with all necessary clamps and fittings, ensuring a hassle-free installation experience. Moreover, the hose is designed to replace the failing original equipment hose with minimal disassembly required.

In summary, the Audi 4H1819371B Heater Coolant Hose Line is an essential upgrade for Audi S8 and A8 owners seeking improved cooling system performance and reliability. With its robust design, high-quality materials, and easy installation, this premium replacement hose line is an investment that will deliver peace of mind and lasting value.

Pros and Cons of Buying an Audi 4H1819371B Heater Coolant Hose Line (2013-2018 S8, A8)

Introduction:

The Audi 4H1819371B is a heater coolant hose line used in various models including the 2013-2018 S8 and A8. Replacing this hose is a common maintenance task for Audi owners. In this article, we will discuss the pros and cons of purchasing this heater coolant hose line.

Pros:

1. OEM Quality: The Audi 4H1819371B is a genuine OEM (original equipment manufacturer) part. This ensures that the hose is specifically designed for your Audi model, providing a perfect fit and optimal performance.

2. Durability: Audi is known for producing high-quality parts, and this heater coolant hose line is no exception. It is designed to withstand the rigors of daily driving and provide reliable service for an extended period.

3. Improved Performance: A worn-out or leaking heater coolant hose can negatively impact your Audi's performance. Replacing it with a new one can help improve the heating system's efficiency and maintain optimal engine temperature.

4. Peace of Mind: Buying an OEM part like the Audi 4H1819371B ensures that you are getting a genuine and high-quality replacement part for your vehicle. This can provide peace of mind and help avoid potential issues that may arise from using aftermarket parts.

Cons:

1. Cost: OEM parts like the Audi 4H1819371B can be more expensive than aftermarket alternatives. However, the higher cost is often justified by the part's superior quality and fit.

2. Availability: Depending on your location and the availability of the part at your local dealership, you may need to wait for the part to be shipped to you, which can add to the overall replacement time and cost.

3. Installation: Installing the new heater coolant hose line may require specialized tools and knowledge. If you are not confident in your ability to install the part yourself, it may be best to have it installed by a professional.

Conclusion:

When considering the purchase of an Audi 4H1819371B heater coolant hose line, it is important to weigh the pros and cons. While the part may be more expensive than aftermarket alternatives, it offers the peace of mind that comes with using OEM parts, as well as improved performance and durability. Additionally, the high-quality materials and design ensure a perfect fit for your Audi model. Ultimately, if you value the reliability and performance of your Audi, investing in a genuine OEM heater coolant hose line is a worthwhile investment.

Recommendation:

If you are in the market for a heater coolant hose line for your Audi S8 or A8 (2013-2018), we recommend purchasing the Audi 4H1819371B. While it may be more expensive than aftermarket alternatives, the superior quality, fit, and performance make it a worthwhile investment for your vehicle. If you are unsure about the installation process, consider having it installed by a professional to ensure optimal results.

Details:

No cracks or structural damage observed on the hose fittings. After installation, check coolant level and bleed the cooling system if necessary. Key Features, Genuine OEM Audi heater coolant return hose line, designed for proper circulation through the system, Factory molded routing precise fit and sealing, connectors direct replacement installation, Durable factory construction reliable cooling system performance. Normal cosmetic wear consistent with age and use.

Install Tech Tips, Inspect surrounding coolant hoses and clamps during installation. Main OEM Part Number: 4H1819371B 4H1 819 371 B; 4H1-819-371-B. Engine variants and production changes may require a different coolant hose. Condition, Used OEM inspected, cleaned, ready to install.

OEM heater coolant return hose line for 2013 2018 Audi A8 and S8. Ensure the hose is fully seated on fittings to prevent leaks. Compatibility, 2013 2018 Audi A8 / A8L D4 4H platform, S8 Heater coolant return hose line heater core. Match by OEM PN and cooling system configuration.

Part Numbers, 4H1819371B, 4H1 819 371 B, 4H1-819-371-B. Whats Included, OEM heater coolant return hose line as shown.

part #: 4h1819371b prices

  • $9.59-$36.22

specifications radiatoranch:

  • for models: S8, A8
  • for makes: Audi
  • for years: 2013-2018
  • mpn: 4h1819371b
  • items included: Hosing, Lines
  • vintage part: No
  • placement on vehicle: Engine Compartment
  • case: 3628
  • type: Radiator
  • manufacturer warranty: 3 Months
  • country of origin: Germany

seller radiatoranch:

  • city: Fair Oaks, California
  • # reviews: 4697
  • rating: 99.1%

shipping radiatoranch:

  • carrier: FedEx
  • type: Fixed
  • class: Standard, Expedited
  • service: FedEx Ground / FedEx Home Delivery, FedEx 2Day
  • transit: 3-8 Days
  • cost: $0.00

general radiatoranch:

  • Car Truck Parts Accessories > Engine Cooling Components > Radiators
  • condition: Used

payments radiatoranch:

  • credit card: Discover
  • wallet: Paypal
  • other

offer radiatoranch:

  • quantity: 1
  • best offers: True
  • started: March 16, 2026
  • options: Ship-to-home
  • sold: 0
  • availability: In Stock

returns radiatoranch:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Seller
for models: s8, a8, for makes: audi, for years: 2013-2018, items included: hosing, lines, vintage part: no, placement on vehicle: engine compartment, case: 3628, type: radiator, manufacturer warranty: 3 months, country of origin: germany,
category: auto parts > car truck parts accessories > engine cooling components > radiators, sku: 12498694396657983,

Audi 4H1819371B Is Similar To:

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5 offers $9.59–$36.22 USD
  • Offer #1: $9.59 price + $0.00 shipping estimate = $9.59* total. 2013-2015 VW 2.0L Coolant Hose Line OEM #03L122157E. 2012-2018 AUDI Right Lower Radiator Coolant Hose Line OEM #4G0121049Q.FREE SHIPPING
  • Offer #2: $29.20 price + $16.00 shipping estimate = $45.20* total.+$16.00 shipping
  • Offer #3: $36.22 price + $0.00 shipping estimate = $36.22* total. Known formats: ; 4H1 819 371 B; 4H1-819-371-B; 4H181937-1B Alternate formats: ; 4H1 819 371 B; 4H1-819-371-B; 4H181937-1B.FREE SHIPPING
  • Offer #4: $31.38 price + $0.00 shipping estimate = $31.38* total. Designed for proper coolant circulation through the heater system. Main OEM Part Number: (4H1 819 371 B; 4H1-819-371-B).FREE SHIPPING
  • Offer #5: $41.10 price + $8.99 shipping estimate = $50.09* total. Genuine Audi Parts.+$8.99 shipping

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