2017-2026 Audi Q7/Q8/RS Q8/SQ8 Heater Coolant Pipe / Line / Tube 4M0819857C

OEM Part #: 4M0-819-857-C (4M0819857C)

$89.99
Used
Donor2021 Audi SQ8 · 4.0L · 47k miles
SKU: 701472 · 30-Day Returns
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Heater Coolant Pipe / Line / Tube 4M0819857C — Used (SKU 701472)
Genuine OEM Used SKU: 701472 Donor Vehicle: 2021 Audi SQ8 · 4.0L · 47k miles 2 photos
$89.99
30-Day Returns
  • Genuine OEM — real photos
  • 30-day returns on eligible parts
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This used OEM Audi heater coolant pipe / line / tube (OEM #4M0819857C) carries hot coolant from the engine to the heater core. It fits Audi Q7, Q8, RS Q8, and SQ8 models with 3.0L and 4.0L engines—including turbo-diesel, supercharged gas, mild-hybrid, and plug-in-hybrid variants. A cracked or corroded pipe typically causes coolant leaks and diminished cabin heat output. This genuine salvage part is a direct replacement for the factory original.

Specifications

Specifications for Heater Coolant Pipe / Line / Tube 4M0819857C
Fits Vehicle ModelQ7, Q8, RS Q8, SQ8
Fits Vehicle MakeAudi
OEM Part No4M0-819-857-C (4M0819857C)
CategoryRadiator / Coolant

Compatible Vehicles

Fits 32 vehicle configurations across 1 make, 2017-2026.

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

  • Q7 2017-2026 · 10 variants 5 with notes
  • Q8 2019-2026 · 8 variants
  • RS Q8 2020-2026 · 7 variants
  • SQ8 2020-2026 · 7 variants
View all 32 vehicle configurations — 5 with fitment notes
Full vehicle fitment list for Heater Coolant Pipe / Line / Tube 4M0819857C
Year Make Model Trim Engine Note
2026 Audi Q8 SUV 3.0L V6 Turbo
2025 Audi RS Q8 SUV 4.0L V8 Turbo
2026 Audi RS Q8 SUV 4.0L V8 Turbo
2026 Audi SQ8 SUV 4.0L V8 Turbo
2024 Audi SQ8 SUV 4.0L V8 Turbo
2020 Audi SQ8 SUV 4.0L V8 Turbo
2025 Audi Q8 SUV 3.0L V6 Turbo
2022 Audi SQ8 SUV 4.0L V8 Turbo
2021 Audi SQ8 SUV 4.0L V8 Turbo
2023 Audi SQ8 SUV 4.0L V8 Turbo
2025 Audi SQ8 SUV 4.0L V8 Turbo
2023 Audi Q7 SUV 3.0L V6 Turbo For Vehicles With Production date Up To 02/05/24
2023 Audi Q8 SUV 3.0L V6 Turbo
2024 Audi Q8 SUV 3.0L V6 Turbo
2026 Audi Q7 SUV 3.0L V6 Turbo For Vehicles with Production Date After 02/05/24
2022 Audi Q7 SUV 3.0L V6 Turbo For Vehicles With Production date Up To 02/05/24
2025 Audi Q7 SUV 3.0L V6 Turbo
2020 Audi Q7 SUV 3.0L V6 Turbo For Vehicles With Production date Up To 02/05/24
2024 Audi Q7 SUV 3.0L V6 Turbo
2017 Audi Q7 SUV 3.0L V6 Supercharged
2018 Audi Q7 SUV 3.0L V6 Supercharged
2019 Audi Q7 SUV 3.0L V6 Supercharged
2022 Audi RS Q8 SUV 4.0L V8 Turbo
2019 Audi Q8 SUV 3.0L V6 Turbo
2020 Audi Q8 SUV 3.0L V6 Turbo
2021 Audi Q7 SUV 3.0L V6 Turbo For Vehicles With Production date Up To 02/05/24
2021 Audi Q8 SUV 3.0L V6 Turbo
2022 Audi Q8 SUV 3.0L V6 Turbo
2021 Audi RS Q8 SUV 4.0L V8 Turbo
2020 Audi RS Q8 SUV 4.0L V8 Turbo
2024 Audi RS Q8 SUV 4.0L V8 Turbo
2023 Audi RS Q8 SUV 4.0L V8 Turbo

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