United States
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Number 7 marks the part’s position in this exploded view (Volkswagen Sharan (2008-2010)).
Other diagrams in the gallery may use a different number for the same part.
Product overview
Genuine OEM Audi Coolant Expansion Tank Cap, part number 7M3121321. This cap is essential for sealing the coolant expansion tank, maintaining the correct pressure within the cooling system, and preventing coolant loss. It is positioned on top of the coolant expansion tank. Weighing 0.1 kg, this cap ensures a secure and leak-free seal. Using a genuine OEM cap guarantees proper pressure regulation and material compatibility, vital for the longevity and efficiency of the engine cooling system.
Technical details
- Category
- Engine Cooling
- Customs (HS) code
- 87089997
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 10.5 × 7.5 × 6 cm
- Shipping weight
- 100 g
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
