Audi Primary HVAC Heater Coolant Hose Assembly 4M8819350

OEM Part #: 4M8-819-350 (4M8819350)

$69.99
Used
Donor Vehicle2021 Audi SQ8 · 4.0L · 47k miles
SKU: 701450 · 30-Day Returns
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Primary HVAC Heater Coolant Hose Assembly 4M8819350 — Used (SKU 701450)
Genuine OEM Used SKU: 701450 Donor Vehicle: 2021 Audi SQ8 · 4.0L · 47k miles 2 photos
$69.99
30-Day Returns
Primary HVAC Heater Coolant Hose Assembly 4M8819350 — Used (SKU 722533)
Genuine OEM Used SKU: 722533 Donor Vehicle: 2020 Audi Q8 · 3.0L 2 photos
$69.99
30-Day Returns
  • Genuine OEM — real photos
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A used genuine OEM Audi Primary HVAC Heater Coolant Hose Assembly, part number 4M8819350, is a factory coolant hose removed from a donor vehicle. This assembly circulates hot engine coolant to the heating system; a failure can cause a cabin heat loss or a coolant leak under the hood. It fits Audi Q8, RS Q8, and SQ8 models with the 3.0L V6 MHEV or PHEV and 4.0L V8 MHEV turbocharged engines.

Specifications

Specifications for Primary HVAC Heater Coolant Hose Assembly 4M8819350
Fits Vehicle ModelQ8, RS Q8, SQ8
Fits Vehicle MakeAudi
OEM Part No4M8-819-350 (4M8819350)
CategoryRadiator / Coolant

Compatible Vehicles

Fits 22 vehicle configurations across 1 make, 2019-2026.

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

  • Q8 2019-2026 · 8 variants 1 with note
  • RS Q8 2020-2026 · 7 variants
  • SQ8 2020-2026 · 7 variants
View all 22 vehicle configurations — 1 with fitment note
Full vehicle fitment list for Primary HVAC Heater Coolant Hose Assembly 4M8819350
Year Make Model Trim Engine Note
2026 Audi RS Q8 SUV 4.0L V8 Turbo
2026 Audi SQ8 SUV 4.0L V8 Turbo
2026 Audi Q8 SUV 3.0L V6 Turbo
2025 Audi RS Q8 SUV 4.0L V8 Turbo
2022 Audi SQ8 SUV 4.0L V8 Turbo
2020 Audi SQ8 SUV 4.0L V8 Turbo
2021 Audi SQ8 SUV 4.0L V8 Turbo
2023 Audi SQ8 SUV 4.0L V8 Turbo
2024 Audi SQ8 SUV 4.0L V8 Turbo
2025 Audi SQ8 SUV 4.0L V8 Turbo
2025 Audi Q8 SUV 3.0L V6 Turbo Primary HVAC
2021 Audi Q8 SUV 3.0L V6 Turbo
2020 Audi Q8 SUV 3.0L V6 Turbo
2024 Audi Q8 SUV 3.0L V6 Turbo
2023 Audi Q8 SUV 3.0L V6 Turbo
2022 Audi RS Q8 SUV 4.0L V8 Turbo
2019 Audi Q8 SUV 3.0L V6 Turbo
2024 Audi RS Q8 SUV 4.0L V8 Turbo
2022 Audi Q8 SUV 3.0L V6 Turbo
2021 Audi RS Q8 SUV 4.0L V8 Turbo
2023 Audi RS Q8 SUV 4.0L V8 Turbo
2020 Audi RS Q8 SUV 4.0L V8 Turbo

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