2004-2009 Audi A8 Coolant Reservoir Hose / Line 4E0121103AA

OEM Part #: 4E0-121-103-AA (4E0121103AA)

$88.49
Used
Donor2008 Audi A8 · 4.2L
SKU: 684635 · 30-Day Returns
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Coolant Reservoir Hose / Line 4E0121103AA — Used (SKU 684635)
Genuine OEM Used SKU: 684635 Donor Vehicle: 2008 Audi A8 · 4.2L 2 photos
$88.49
30-Day Returns
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A genuine used Audi coolant reservoir hose / line, OEM 4E0121103AA, pulled from a donor vehicle. This hose carries coolant between the reservoir and engine on the 4.2L V8—cracking or swelling over time leads to low coolant and potential overheating. It's a straightforward swap once you've drained the system.

Specifications

Specifications for Coolant Reservoir Hose / Line 4E0121103AA
Fits Vehicle ModelA8
Fits Vehicle MakeAudi
OEM Part No4E0-121-103-AA (4E0121103AA)
CategoryRadiator / Coolant

Compatible Vehicles

Fits 11 vehicle configurations across 1 make, 2004-2009.

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 2004-2009 · 11 variants 11 with notes
View all 11 vehicle configurations — 11 with fitment notes
Full vehicle fitment list for Coolant Reservoir Hose / Line 4E0121103AA
Year Make Model Trim Engine Note
2005 Audi A8 Quattro Sedan 4.2L V8 For Vehicles with Engine Code(s) BVJ
2009 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles With Production date Up To 11/03/08
2009 Audi A8 Quattro Sedan 4.2L V8 For Vehicles With Production date Up To 11/03/08
2005 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles with Engine Code(s) BVJ
2007 Audi A8 Quattro Sedan 4.2L V8 For Vehicles with Engine Code(s) BVJ
2006 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles with Engine Code(s) BVJ
2006 Audi A8 Quattro Sedan 4.2L V8 For Vehicles with Engine Code(s) BVJ
2008 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles With Production date Up To 11/03/08
2008 Audi A8 Quattro Sedan 4.2L V8 For Vehicles With Production date Up To 11/03/08
2007 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles with Engine Code(s) BVJ
2004 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles with Engine Code(s) BVJ

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