2004-2010 Audi A8 Breather Line / Vent Hose 4E0121164J
OEM Part #: 4E0-121-164-J (4E0121164J)
This page covers one exact OEM part number. Every unit we stocked has sold.
We may be able to get another
Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:
Other Vacuum / Crankcase Breather Hose / Line that may fit your vehicle
Crankcase Breather / Vent Hose
Crankcase Breather / Vent Hose
Engine Breather Hose / Vent Tube (UPPER)
Vacuum Hose / Line
Vacuum Hose / Line (UPPER)
Vacuum Hose / Y-Line
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This genuine OEM breather line/vent hose, part number 4E0121164J, is a critical component for the crankcase ventilation system in the Audi A8 Quattro models from 2007 to 2010 equipped with a 4.2L V8 engine. Positioned strategically to connect the crankcase to the intake manifold, this tube allows for the efficient venting of gases, thereby preventing pressure build-up and ensuring optimal engine performance. Common issues requiring replacement include cracks, wear, or blockages, which can lead to poor engine performance, oil leaks, or increased emissions. Also referred to as a breather tube, it may interchange with part numbers 4E0121101BS, 4E1819674A, and others, providing flexibility for sourcing. For reliable engine function in your Audi A8 Quattro, replacing a damaged breather line is essential. Maintained factory specifications ensure a seamless fit and restore the system's integrity.
Specifications
| Fits Vehicle Model | A8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4E0-121-164-J (4E0121164J) |
| Category | Evap / EGR |
Compatible Vehicles
Fits 13 vehicle configurations across 1 make, 2004-2010.
View all 13 vehicle configurations — 7 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2004 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BVJ |
| 2005 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BVJ |
| 2005 | 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 |
| 2006 | 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 |
| 2007 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BVJ |
| 2008 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2008 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2009 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2009 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2010 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2010 | Audi | A8 | Quattro L Sedan | 4.2L V8 |