2017-2025 Audi A4/A4 allroad/A5 HVAC Heater Coolant Hose / Line 8W1819373AA

OEM Part #: 8W1-819-373-AA (8W1819373AA)

$8.49
Used
Donor2021 Audi A5 SPORTBACK · 2.0L · 50k miles
SKU: 611021 · 30-Day Returns
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HVAC Heater Coolant Hose / Line 8W1819373AA — Used (SKU 611021)
Genuine OEM Used SKU: 611021 Donor Vehicle: 2021 Audi A5 SPORTBACK · 2.0L · 50k miles 2 photos
$8.49
30-Day Returns
HVAC Heater Coolant Hose / Line 8W1819373AA — Used (SKU 607081)
Genuine OEM Used SKU: 607081 Donor Vehicle: 2021 Audi A5 · 2.0L · 35k miles 2 photos
$8.49
30-Day Returns
HVAC Heater Coolant Hose / Line 8W1819373AA — Used (SKU 627872)
Genuine OEM Used SKU: 627872 Donor Vehicle: 2023 Audi A4 · 2.0L · 14k miles 2 photos
$8.99
30-Day Returns
HVAC Heater Coolant Hose / Line 8W1819373AA — Used (SKU 694558)
Genuine OEM Used SKU: 694558 Donor Vehicle: 2025 Audi A5 SPORTBACK · 2.0L 2 photos
$8.99
30-Day Returns
HVAC Heater Coolant Hose / Line 8W1819373AA — Used (SKU 652116)
Genuine OEM Used SKU: 652116 Donor Vehicle: 2025 Audi A5 SPORTBACK · 2.0L · 13k miles 2 photos
$11.49
30-Day Returns
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A used genuine OEM Audi HVAC Heater Coolant Hose / Line, OEM part number 8W1819373AA, sourced from a late-model donor vehicle. This hose, also called a line or heater coolant pipe, circulates hot engine coolant to the HVAC system for cabin heating. On Audi 2.0L turbocharged engines (including EA888 variants), a cracked or leaking heater hose leads to low coolant levels, poor heat output, and potential overheating.

Specifications

Specifications for HVAC Heater Coolant Hose / Line 8W1819373AA
Fits Vehicle ModelA4, A4 allroad, A5
Fits Vehicle MakeAudi
OEM Part No8W1-819-373-AA (8W1819373AA)
CategoryRadiator / Coolant

Compatible Vehicles

Fits 42 vehicle configurations across 1 make, 2017-2025.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

Audi

  • A4 2017-2025 · 13 variants 1 with note
  • A4 allroad 2021-2025 · 5 variants 5 with notes
  • A5 2017-2025 · 24 variants 1 with note
View all 42 vehicle configurations — 7 with fitment notes
Full vehicle fitment list for HVAC Heater Coolant Hose / Line 8W1819373AA
Year Make Model Trim Engine Note
2023 Audi A4 allroad Wagon 2.0L l4 Turbo Heater Core To Connector, Outlet
2021 Audi A4 allroad Wagon 2.0L l4 Turbo Heater Core To Connector, Outlet
2022 Audi A4 allroad Wagon 2.0L l4 Turbo Heater Core To Connector, Outlet
2025 Audi A5 Hatchback 2.0L l4 Turbo Heater Core To Connector, Outlet
2024 Audi A4 allroad Wagon 2.0L l4 Turbo Heater Core To Connector, Outlet
2025 Audi A4 allroad Wagon 2.0L l4 Turbo Heater Core To Connector, Outlet
2025 Audi A4 Quattro Sedan 2.0L l4 Turbo Heater Core To Connector, Outlet
2022 Audi A5 Quattro Convertible 2.0L l4 Turbo
2024 Audi A5 Quattro Coupe 2.0L l4 Turbo
2019 Audi A5 Quattro Convertible 2.0L l4 Turbo
2019 Audi A5 Hatchback 2.0L l4 Turbo
2023 Audi A5 Quattro Convertible 2.0L l4 Turbo
2023 Audi A4 Quattro Sedan 2.0L l4 Turbo
2021 Audi A5 Quattro Convertible 2.0L l4 Turbo
2020 Audi A5 Quattro Convertible 2.0L l4 Turbo
2020 Audi A4 Quattro Sedan 2.0L l4 Turbo
2019 Audi A4 Sedan 2.0L l4 Turbo
2021 Audi A5 Hatchback 2.0L l4 Turbo
2021 Audi A4 Quattro Sedan 2.0L l4 Turbo
2024 Audi A5 Quattro Convertible 2.0L l4 Turbo
2024 Audi A4 Quattro Sedan 2.0L l4 Turbo
2021 Audi A5 Quattro Coupe 2.0L l4 Turbo
2023 Audi A5 Quattro Coupe 2.0L l4 Turbo
2017 Audi A5 Quattro Convertible 2.0L l4 Turbo
2018 Audi A4 Quattro Sedan 2.0L l4 Turbo
2017 Audi A4 Sedan 2.0L l4 Turbo
2017 Audi A5 Quattro Coupe 2.0L l4 Turbo
2017 Audi A4 Quattro Sedan 2.0L l4 Turbo
2018 Audi A5 Quattro Coupe 2.0L l4 Turbo
2019 Audi A4 Quattro Sedan 2.0L l4 Turbo
2018 Audi A4 Sedan 2.0L l4 Turbo
2018 Audi A5 Hatchback 2.0L l4 Turbo
2018 Audi A5 Quattro Convertible 2.0L l4 Turbo
2022 Audi A4 Quattro Sedan 2.0L l4 Turbo
2024 Audi A5 Hatchback 2.0L l4 Turbo
2022 Audi A5 Hatchback 2.0L l4 Turbo
2020 Audi A5 Quattro Coupe 2.0L l4 Turbo
2022 Audi A5 Quattro Coupe 2.0L l4 Turbo
2020 Audi A4 Sedan 2.0L l4 Turbo
2020 Audi A5 Hatchback 2.0L l4 Turbo
2023 Audi A5 Hatchback 2.0L l4 Turbo
2019 Audi A5 Quattro Coupe 2.0L l4 Turbo

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