United States
Product overview
Genuine OEM Audi Expansion Tank, part number 8E0121403C. This tank serves as a reservoir for engine coolant, allowing for expansion and contraction due to temperature changes. It helps maintain the correct coolant level and pressure within the cooling system. Made from durable plastic, it is designed to withstand the operating temperatures and pressures of the cooling system. Genuine OEM parts ensure proper fitment and reliable performance in your cooling system.
Technical details
- Category
- Engine Cooling
- Customs (HS) code
- 87089997
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 30 × 24 × 17 cm
- Shipping weight
- 0.63 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 vehiclesReservoir — locate 8E0121403C Audi Expansion Tank | Genuine OEM in the official exploded view and explore the surrounding assembly.
Superseded by 8E0121321 — the current replacement part.
Parts in this assembly20
- 1Radiator 8E0121251A
- 1Radiator 8E0121251AQ
- 1Radiator 8E0121251C
- 1Radiator 8E0121251G
- 1Radiator 8E0121251M
- 1Radiator 8E0121251Q
- 1Radiator 8E0121251S
- 1Radiator 8E0121251J
- 1Radiator 8E0121251P
- 2Part 4B3121200
- 3Rubber Bush 4B3121275
- 4Rubber Bush 4B3121276A
- 8Cover 8E0121321
- 9Seal Ring 1H0121687A
- 10Container 8E0121403
- 10Container 8E0121403A
- 11Bolt N91090701
- 12Part 811807577C
- 19Cool Add G012A8FM8
- 19Cool Add G012A8FM1
Compatible / alternative parts(1)
Vehicle fitment table4
Europe (4)
| Vehicle | Years | Pos. | Qty | Remark | PR |
|---|---|---|---|---|---|
| Exeo ST Reference | 2008-2011 | 10 | 1 | DND | |
| Audi A4/S4/Av./qu. 05> | 2005- | 10 | 1 | BDG,BCZ | T1K |
| Audi A4/S4 Cabrio./qu. | 2002-2006 | 10 | 1 | T5T | |
| Audi A4/S4/Av./qu. | 2001-2004 | 10 | 1 | AK | E,A |
Diagrams & fitment data powered by oemdiagrams.com
8E0121403C Audi Expansion Tank | Genuine OEM is fitted on: Exeo ST Reference 2008-2011; Audi A4/S4/Av./qu. 05> 2005-; Audi A4/S4 Cabrio./qu. 2002-2006; Audi A4/S4/Av./qu. 2001-2004.
