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Find this reference above

Number 20 marks the part’s position in the exploded view.

Product overview

Genuine OEM Volkswagen Expansion Tank, part number 3Q0121407D. This expansion tank is marked as number 20 in the diagram and is part of the engine cooling system. It holds excess coolant and maintains system pressure. Genuine OEM parts ensure precise fit and durability.

Catalogue entry: CONTAINER.

Technical details

Category
Engine Cooling
Country of origin
Germany
Customs (HS) code
87089997
Manufacturer
Volkswagen
Product Type
Genuine new auto parts
Shipping size (L × W × H)
23 × 21 × 17 cm
Shipping weight
0.7 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

Replaces older part numbers

This is the current manufacturer number. Older numbers on this road are no longer supplied.

Supersession roadoldest to newest
  1. 3Q0121407ASuperseded
    Nov 2021
  2. 3Q0121407DThis pageCurrent number

Parts diagram & fitment

3 vehicles

Reservoir — locate 3Q0121407D Volkswagen Expansion Tank | Genuine OEM in the official exploded view and explore the surrounding assembly.

Parts in this assembly48
Vehicle fitment table3

Europe (3)

VehicleYearsPos.Qty
Tiguan 2.0 4Motion2017-2024201
Arteon2017-2023201
Kodiaq2016-2024201

Diagrams & fitment data powered by oemdiagrams.com

3Q0121407D Volkswagen Expansion Tank | Genuine OEM is fitted on: Tiguan 2.0 4Motion 2017-2024; Arteon 2017-2023; Kodiaq 2016-2024.