2004-2007 Audi A8 Heater Coolant Return Hose / Line 4E0819373F

OEM Part #: 4E0-819-373-F (4E0819373F)

$29.99
Used
Donor Vehicle2006 Audi A8 · 4.2L
SKU: 721678 · 30-Day Returns
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Heater Coolant Return Hose / Line 4E0819373F — Used (SKU 721678)
Genuine OEM Used SKU: 721678 Donor Vehicle: 2006 Audi A8 · 4.2L 2 photos
$29.99
30-Day Returns
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This OEM HEATER COOLANT RETURN HOSE (Part Number: 4E0819373F) is an essential component for maintaining the integrity of your Audi’s cooling system. Specifically designed for the 2004-2006 Audi A8 Quattro models with a 4.2L V8 engine, this genuine factory-original part ensures optimal performance by directing coolant from the heater back to the engine. Common issues such as coolant leaks or overheating can arise from a worn or damaged hose, making this replacement critical. Also referred to as the HVAC heater hose, it fits seamlessly into your vehicle’s cooling circuit. Compatible alternative part numbers include 4E0121449D, 4E0121447D, and 4E0121164D, ensuring versatility in sourcing genuine parts.

Specifications

Specifications for Heater Coolant Return Hose / Line 4E0819373F
Fits Vehicle ModelA8
Fits Vehicle MakeAudi
OEM Part No4E0-819-373-F (4E0819373F)
CategoryRadiator / Coolant

Compatible Vehicles

Fits 7 vehicle configurations across 1 make, 2004-2007.

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

  • A8 2004-2007 · 7 variants 7 with notes
View all 7 vehicle configurations — 7 with fitment notes
Full vehicle fitment list for Heater Coolant Return Hose / Line 4E0819373F
Year Make Model Trim Engine Note
2005 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles with Engine Code(s) BFM, BGK
2007 Audi A8 Quattro Sedan 4.2L V8 For Vehicles with Engine Code(s) BFM, BGK
2006 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles with Engine Code(s) BFM, BGK
2006 Audi A8 Quattro Sedan 4.2L V8 For Vehicles with Engine Code(s) BFM, BGK
2007 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles with Engine Code(s) BFM, BGK
2004 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles with Engine Code(s) BFM, BGK
2005 Audi A8 Quattro Sedan 4.2L V8 For Vehicles with Engine Code(s) BFM, BGK

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