United States
Target · Diagram
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Number 23 marks the part’s position in the exploded view.
Product overview
Genuine OEM Volkswagen Coolant Expansion Tank, part number 1S0121407J. This component stores and pressurizes engine coolant, accommodating expansion and contraction due to temperature changes to maintain optimal system pressure. It is located at position 23 in the diagram, within the engine bay. Typically made of durable plastic, it includes connections for hoses and a pressure cap. Genuine OEM expansion tanks are designed with precise material specifications and sealing surfaces to prevent leaks and ensure long-term reliability.
Catalogue entry: TANK.
Technical details
- Category
- Engine Cooling
- Customs (HS) code
- 87089997
- Manufacturer
- Volkswagen
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 17.5 × 15.5 × 14.5 cm
- Shipping weight
- 0.17 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
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Parts diagram & fitment
11 vehiclesCoolant Expansion Tank — locate 1S0121407J Volkswagen Coolant Expansion Tank | Genuine OEM in the official exploded view and explore the surrounding assembly.
Parts in this assembly20
- 1Radiator 1S0121253AN
- 2Air Guide 12E121283D
- 3Air Guide 12E121284F
- 4Air Guide 1S0121281
- 5Clip WHT006971
- 6Bush 1K0121367F
- 7Bracket 1S0121367C
- 8Bolt N10762601
- 9Tank 1S0121407G
- 10Cover 2Q0121321A
- 11Seal Ring 1H0121687A
- 13CoolantLeftG013774M2
- 13CoolantLeftG013A8JM8
- 13CoolantLeftG013A8JM9
- 13CoolantRightG12E050A2
- 13CoolantRightG12E050A8
- 13CoolantRightG12E050A9
- 13CoolantRightG12E100A9
- 13CoolantLeftG013A8JM1
- 13CoolantRightG12E100A8
Vehicle fitment table11
Europe (10)
| Vehicle | Years | Pos. | Qty |
|---|---|---|---|
| Mii electric | 2020-2021 | 9 | 1 |
| Citigo | 2019-2021 | 9 | 1 |
| Tiguan 2.0 4Motion | 2016-2024 | 23 | 1 |
| up! 1.0 BlueMotion | 2016-2023 | 2 | 1 |
| e-up! | 2016-2023 | 9 | 1 |
| golf 2.0 | 2016-2020 | 23 | 1 |
| Superb Combi | 2015-2024 | 23 | 1 |
| Audi A3 Sportback | 2012-2016 | 30 | |
| Citigo | 2011-2019 | 2 | 1 |
| Mii reference | 2011-2019 | 2 | 1 |
Other markets (1)
| Vehicle | Years | Pos. | Qty |
|---|---|---|---|
| up! 1.0 TSI | 2017-2021 | 2 | 1 |
Diagrams & fitment data powered by oemdiagrams.com
1S0121407J Volkswagen Coolant Expansion Tank | Genuine OEM is fitted on: Mii electric 2020-2021; Citigo 2019-2021; Tiguan 2.0 4Motion 2016-2024; up! 1.0 BlueMotion 2016-2023; e-up! 2016-2023; golf 2.0 2016-2020; Superb Combi 2015-2024; Audi A3 Sportback 2012-2016; Citigo 2011-2019; Mii reference 2011-2019; up! 1.0 TSI 2017-2021.
