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Number 6 marks the part’s position in this exploded view (Audi A6 2.0 (2018-)).
Other diagrams in the gallery may use a different number for the same part.
Product overview
Genuine OEM Audi Fuel Tank Breather Line, part number 4K0201991AG. This component is essential for the fuel system's evaporative emissions control, allowing air to enter and exit the fuel tank to equalize pressure and manage fuel vapor. It connects the fuel tank to the activated charcoal canister. Weighing 0.12 kg, this line measures 1.35 m in length. Using a genuine OEM breather line ensures proper material compatibility with fuel vapors, correct routing, and reliable function for emissions compliance.
Catalogue entry: LINE.
Technical details
- Category
- Fuel System
- Customs (HS) code
- 87089997
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 135 × 72 × 18 cm
- Shipping weight
- 0.12 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
