United States
Target · Diagram
Find this reference above
Number 21 marks the part’s position in the exploded view (Audi A8 (2013-2018)).
Product overview
Genuine OEM Audi Breather Line, part number 4H0121081S. Fits Audi A8 (2013-2018). Shown as position 21 in the engine diagram 696121370.
Catalogue entry: PIPE front center.
Technical details
- Category
- Engine Cooling
- Diagram sheet
- Audi 696121370, position 21
- ETKA group
- 1 / 21 (121)
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
Why buy from WW Spares?
- ✓ Genuine OEM inventory sourced directly from factory networks
- ✓ Fitment support from workshop-seasoned parts specialists
- ✓ Global logistics with customs-ready documentation
Need help confirming compatibility? Talk to a specialist
Parts diagram & fitment
2 vehiclesBreather Line — locate 4H0121081S Audi Breather Line in the official exploded view and explore the surrounding assembly.
Parts in this assembly29
- 1Hose 4H0121055S
- 2Seal Ring 4E0121666
- 3Spring 4E0121142
- 4Water Pipe 4H0121399G
- 5Collar Nut N01508210
- 6Hose 4H0121109C
- 7Hose 4H0121104F
- 8Water Pipe 4H0121481AA
- 9Bolt N10405604
- 10Hose 4H0121445J
- 11Water Pipe 4H0121485AB
- 12Hose 4H0121449R
- 13Hose 4H0121448L
- 14Water Pipe 4H0121400AC
- 15Hose 4H0121471C
- 16Pump 059121012A
- 17Hose 4H0121447AD
- 18Hose 4H0121054H
- 19Bracket 3C0121093D
- 20Binder 4A0820199
- 22Hose 4H0121107J
- 23Hose 4H0121107F
- 24Pipe 4H0121081AA
- 26Screw N91049101
- 60Clamp N90686701
- 61Clamp N90926401
- 62Clamp N90686902
- 63Clamp N90687001
- 64Clamp N90926501
Vehicle fitment table2
Europe (2)
| Vehicle | Years | Pos. | Qty | PR |
|---|---|---|---|---|
| Audi A8L qu. 3.0 TDI | 2013-2018 | 21 | 1 | |
| Audi A8L qu. 3.0 TDI | 2009-2014 | 21 | 1 | TX7 |
Diagrams & fitment data powered by oemdiagrams.com
4H0121081S Audi Breather Line is fitted on: Audi A8L qu. 3.0 TDI 2013-2018; Audi A8L qu. 3.0 TDI 2009-2014.