United States
Product overview
Genuine OEM Audi Overflow Coolant Hose, part number 4G0121081EP. This hose is designed to manage excess coolant flow within the cooling system, helping to maintain optimal pressure and prevent overheating. It is positioned at the rear. Made from durable, flexible materials, this genuine OEM hose ensures the correct routing and resistance for reliable coolant management.
Catalogue entry: PIPE rear.
Technical details
- Category
- Engine Cooling
- Country of origin
- Germany
- Customs (HS) code
- 87089997
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 35 × 27 × 6 cm
- Shipping weight
- 0.5 kg
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
4 vehiclesBreather Line — locate 4G0121081EP Audi Overflow Coolant Hose | Rear in the official exploded view and explore the surrounding assembly.
Parts in this assembly48
- 1Coupl Piece 4G0122293CR
- 2Seal Ring N90765301
- 3Spring 1J0121142
- 4Sender 06A919501A
- 5Seal Ring N90316801
- 6Spring 032121142
- 7Bracket WHT005366
- 8Part 4G0122055AB
- 8Hose 4G0122055S
- 9Coupl Piece 3B0122291C
- 12Adapter N90692901
- 13Hose 4G0121056AH
- 13Hose 4G0121056AF
- 14Pipe 4G0121081FH
- 14Line 4G0121081DQ
- 15Hose 4G0121107BG
- 16Hose 06L121081E
- 16Hose 06L121081K
- 17Bracket 06L133689C
- 18Adapter 06K121143
- 19Seal Ring WHT005440
- 20Screw N10619201
- 21Pump 06H121601N
- 22Screw WHT002306
- 23Bracket 4G0121305DL
- 24Water Pipe 06L121075B
- 24Water Pipe 06L121075A
- 25Screw N10721401
- 26Bolt N10196103
- 27Water Pipe 06L121492E
- 28Seal Ring WHT006114
- 30Bracket 06L115261
- 31Water Pipe 06L121497J
- 32Seal Ring WHT006124
- 33Hose 06L121051C
- 34Water Pipe 06L121085K
- 35Seal Ring WHT005558
- 36Bolt N10335202
- 37Bolt N10524202
- 38Heat Insul 06L133833A
- 39Pipe 4G0121081EK
- 39Pipe 4G0121081EQ
- 39Pipe 4G0121081EC
- 40Part 4G0122101BD
- 40Hose 4G0122101AT
- 47Hose 4G0819371AL
- 48Hose 4G0122109AN
- 48Hose 4G0122109AG
Compatible / alternative parts(3)
Vehicle fitment table4
Europe (2)
| Vehicle | Years | Pos. | Qty |
|---|---|---|---|
| Audi A7 Sportback | 2014-2018 | 14 | 1 |
| audi a6 qu. 3.0 tdi | 2014-2018 | 14 | 1 |
Other markets (2)
| Vehicle | Years | Pos. | Qty |
|---|---|---|---|
| Phideon | 2016-2023 | 1 | 1 |
| audi a6 1.8 | 2015-2019 | 14 | 1 |
The manufacturer’s catalogue lists this part number as fitted until 4 September 2017; later builds may use a superseding number.
Diagrams & fitment data powered by oemdiagrams.com
4G0121081EP Audi Overflow Coolant Hose | Rear is fitted on: Audi A7 Sportback 2014-2018; audi a6 qu. 3.0 tdi 2014-2018; Phideon 2016-2023; audi a6 1.8 2015-2019.