United States
Product overview
Genuine OEM Volkswagen Coolant Expansion Tank, part number 1EA121407H. This tank holds excess engine coolant, allowing for thermal expansion and contraction while maintaining proper system pressure. It is typically located within the engine bay, connected to the radiator and engine block. Constructed from durable, translucent grey plastic, it allows for easy visual inspection of coolant levels. Choosing a genuine OEM expansion tank ensures precise fitment, correct pressure relief valve calibration, and long-term resistance to heat and chemical degradation.
Catalogue entry: CONTAINER.
Fitted with: 2Q0121321A COVER, G12E050A2 COOLANT.
Technical details
- Category
- Engine Cooling
- Customs (HS) code
- 87089997
- Manufacturer
- Volkswagen
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 26.5 × 18.5 × 17.5 cm
- Shipping weight
- 0.51 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
6 vehiclesReservoir — locate 1EA121407H Volkswagen Coolant Expansion Tank | Engine Cooling in the official exploded view and explore the surrounding assembly.
Parts in this assembly25
- 1Radiator 1EA121251B
- 2Grommet 1EA121367J
- 3Part 4M0121095
- 4Bracket 1EA121367F
- 5Bracket 1EA121367E
- 6Clip 1EA121095
- 7Bolt N90862302
- 8Air Guide 1EA121281E
- 9Blind 1EA122135E
- 9Blind 1EA122135H
- 11Air Guide 1EA121281C
- 12Air Guide 10A121293E
- 12Air Guide 10A121293F
- 13Grille 1T3941775
- 13Grille 10A941775
- 14Cover 2Q0121321A
- 17Washer N90796502
- 18Servomotor 1EA965501A
- 18Servomotor 1EA965501B
- 19Bolt N10549603
- 20Coolant G12E050A2
- 20Coolant G12E050A8
- 20Coolant G12E050A9
- 20Coolant G12E100A8
- 20Coolant G12E100A9
Compatible / alternative parts(12)
Vehicle fitment table6
Europe (6)
| Vehicle | Years | Pos. | Qty |
|---|---|---|---|
| ID.7 Limousine Pro | 2023- | 16 | 1 |
| eBoost CUPRA | 2021- | 16 | |
| Audi Q4 Sportback | 2021-2022 | 14 | |
| Enyaq | 2020- | 16 | 1 |
| ID.4 Pro | 2020-2023 | 16 | 1 |
| ID.3 Pro | 2019-2024 | 16 | 1 |
Diagrams & fitment data powered by oemdiagrams.com
1EA121407H Volkswagen Coolant Expansion Tank | Engine Cooling is fitted on: ID.7 Limousine Pro 2023-; eBoost CUPRA 2021-; Audi Q4 Sportback 2021-2022; Enyaq 2020-; ID.4 Pro 2020-2023; ID.3 Pro 2019-2024.
