2017-2025 Audi Heater Coolant Hose / Line (INLET) 8W1819350B

OEM Part #: 8W1-819-350-B (8W1819350B)

$7.49
Used
Donor2019 Audi A5 SPORTBACK · 2.0L · 50k miles
SKU: 531458 · 30-Day Returns
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9 Available — Select Your Part:
Heater Coolant Hose / Line (INLET) 8W1819350B — Used (SKU 531458)
Genuine OEM Used SKU: 531458 Donor Vehicle: 2019 Audi A5 SPORTBACK · 2.0L · 50k miles 2 photos
$7.49
30-Day Returns
Heater Coolant Hose / Line (INLET) 8W1819350B — Used (SKU 574855)
Genuine OEM Used SKU: 574855 Donor Vehicle: 2019 Audi A5 · 2.0L · 38k miles 2 photos
$7.49
30-Day Returns
Heater Coolant Hose / Line (INLET) 8W1819350B — Used (SKU 607095)
Genuine OEM Used SKU: 607095 Donor Vehicle: 2021 Audi A5 · 2.0L · 35k miles 2 photos
$7.49
30-Day Returns
Heater Coolant Hose / Line (INLET) 8W1819350B — Used (SKU 611031)
Genuine OEM Used SKU: 611031 Donor Vehicle: 2021 Audi A5 SPORTBACK · 2.0L · 50k miles 2 photos
$7.49
30-Day Returns
Heater Coolant Hose / Line (INLET) 8W1819350B — Used (SKU 563087)
Genuine OEM Used SKU: 563087 Donor Vehicle: 2019 Audi A4 · 2.0L · 54k miles 2 photos
$7.49
30-Day Returns
Heater Coolant Hose / Line (INLET) 8W1819350B — Used (SKU 694552)
Genuine OEM Used SKU: 694552 Donor Vehicle: 2025 Audi A5 SPORTBACK · 2.0L 2 photos
$7.99
30-Day Returns
Heater Coolant Hose / Line (INLET) 8W1819350B — Used (SKU 679148)
Genuine OEM Used SKU: 679148 Donor Vehicle: 2018 Audi A5 · 2.0L · 71k miles 2 photos
$8.49
30-Day Returns
Heater Coolant Hose / Line (INLET) 8W1819350B — Used (SKU 649128)
Genuine OEM Used SKU: 649128 Donor Vehicle: 2018 Audi A5 · 2.0L 2 photos
$8.99
30-Day Returns
Heater Coolant Hose / Line (INLET) 8W1819350B — Used (SKU 652109)
Genuine OEM Used SKU: 652109 Donor Vehicle: 2025 Audi A5 SPORTBACK · 2.0L · 13k miles 2 photos
$8.99
30-Day Returns
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This used OEM Audi heater coolant hose / inlet line, part number 8W1819350B, is the genuine coolant line for the heating system. It’s also called the coolant line (inlet) and was removed from a donor Audi. Designed for Audi 2.0L turbocharged engines (including gas, flex-fuel, and mild-hybrid variants), this hose routes coolant to the heater core. A cracked or leaking heater coolant hose can cause coolant loss, overheating, or reduced cabin heat.

Specifications

Specifications for Heater Coolant Hose / Line (INLET) 8W1819350B
Fits Vehicle ModelA4, A4 allroad, A5
Fits Vehicle MakeAudi
OEM Part No8W1-819-350-B (8W1819350B)
CategoryRadiator / Coolant

Compatible Vehicles

Fits 46 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 2017-2025 · 9 variants 9 with notes
  • A5 2017-2025 · 24 variants 1 with note
View all 46 vehicle configurations — 11 with fitment notes
Full vehicle fitment list for Heater Coolant Hose / Line (INLET) 8W1819350B
Year Make Model Trim Engine Note
2025 Audi A4 allroad Wagon 2.0L l4 Turbo Connector to Heater Core, Inlet
2025 Audi A4 Quattro Sedan 2.0L l4 Turbo Connector to Heater Core, Inlet
2017 Audi A4 allroad Wagon 2.0L l4 Turbo Connector to Heater Core, Inlet
2024 Audi A5 Quattro Convertible 2.0L l4 Turbo
2024 Audi A4 Quattro Sedan 2.0L l4 Turbo
2024 Audi A5 Quattro Coupe 2.0L l4 Turbo
2024 Audi A5 Hatchback 2.0L l4 Turbo
2021 Audi A5 Quattro Convertible 2.0L l4 Turbo
2021 Audi A4 Quattro Sedan 2.0L l4 Turbo
2020 Audi A5 Hatchback 2.0L l4 Turbo
2023 Audi A4 Quattro Sedan 2.0L l4 Turbo
2023 Audi A5 Quattro Convertible 2.0L l4 Turbo
2021 Audi A5 Quattro Coupe 2.0L l4 Turbo
2019 Audi A5 Quattro Convertible 2.0L l4 Turbo
2022 Audi A5 Quattro Coupe 2.0L l4 Turbo
2020 Audi A5 Quattro Convertible 2.0L l4 Turbo
2020 Audi A4 Quattro Sedan 2.0L l4 Turbo
2022 Audi A4 Quattro Sedan 2.0L l4 Turbo
2022 Audi A5 Quattro Convertible 2.0L l4 Turbo
2023 Audi A5 Hatchback 2.0L l4 Turbo
2020 Audi A4 Sedan 2.0L l4 Turbo
2022 Audi A5 Hatchback 2.0L l4 Turbo
2019 Audi A5 Quattro Coupe 2.0L l4 Turbo
2021 Audi A5 Hatchback 2.0L l4 Turbo
2019 Audi A5 Hatchback 2.0L l4 Turbo
2020 Audi A5 Quattro Coupe 2.0L l4 Turbo
2023 Audi A5 Quattro Coupe 2.0L l4 Turbo
2024 Audi A4 allroad Wagon 2.0L l4 Turbo Connector to Heater Core, Inlet
2023 Audi A4 allroad Wagon 2.0L l4 Turbo Connector to Heater Core, Inlet
2020 Audi A4 allroad Wagon 2.0L l4 Turbo Connector to Heater Core, Inlet
2021 Audi A4 allroad Wagon 2.0L l4 Turbo Connector to Heater Core, Inlet
2022 Audi A4 allroad Wagon 2.0L l4 Turbo Connector to Heater Core, Inlet
2025 Audi A5 Hatchback 2.0L l4 Turbo Connector to Heater Core, Inlet
2018 Audi A4 allroad Wagon 2.0L l4 Turbo Connector to Heater Core, Inlet
2019 Audi A4 allroad Wagon 2.0L l4 Turbo Connector to Heater Core, Inlet
2018 Audi A4 Quattro Sedan 2.0L l4 Turbo
2018 Audi A4 Sedan 2.0L l4 Turbo
2018 Audi A5 Quattro Coupe 2.0L l4 Turbo
2018 Audi A5 Quattro Convertible 2.0L l4 Turbo
2018 Audi A5 Hatchback 2.0L l4 Turbo
2019 Audi A4 Quattro Sedan 2.0L l4 Turbo
2017 Audi A4 Quattro Sedan 2.0L l4 Turbo
2017 Audi A5 Quattro Coupe 2.0L l4 Turbo
2017 Audi A4 Sedan 2.0L l4 Turbo
2017 Audi A5 Quattro Convertible 2.0L l4 Turbo
2019 Audi A4 Sedan 2.0L l4 Turbo

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