2005-2009 Audi A8/S8 Coolant Pipe / Tube / Line 4E0121399G

OEM Part #: 4E0-121-399-G (4E0121399G)

$39.49
Used
Donor2005 Audi A8 · 6.0L
SKU: 681686 · 30-Day Returns
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Coolant Pipe / Tube / Line 4E0121399G — Used (SKU 681686)
Genuine OEM Used SKU: 681686 Donor Vehicle: 2005 Audi A8 · 6.0L 2 photos
$39.49
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This used Audi coolant pipe (OEM 4E0121399G) carries coolant between engine components on the A8 Quattro and S8. Also called a coolant tube or line, it’s a genuine factory part that can fail with age, leading to leaks and overheating. Fits the 5.2L V10 and 6.0L W12 naturally aspirated engines.

Specifications

Specifications for Coolant Pipe / Tube / Line 4E0121399G
Fits Vehicle ModelA8, S8
Fits Vehicle MakeAudi
OEM Part No4E0-121-399-G (4E0121399G)
CategoryRadiator / Coolant

Compatible Vehicles

Fits 8 vehicle configurations across 1 make, 2005-2009.

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 2005-2009 · 5 variants
  • S8 2007-2009 · 3 variants
View all 8 vehicle configurations
Full vehicle fitment list for Coolant Pipe / Tube / Line 4E0121399G
Year Make Model Trim Engine Note
2006 Audi A8 Quattro L Sedan 6.0L W12
2007 Audi A8 Quattro L Sedan 6.0L W12
2007 Audi S8 Sedan 5.2L V10
2005 Audi A8 Quattro L Sedan 6.0L W12
2008 Audi S8 Sedan 5.2L V10
2009 Audi S8 Sedan 5.2L V10
2009 Audi A8 Quattro L Sedan 6.0L W12
2008 Audi A8 Quattro L Sedan 6.0L W12

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