Description
Key Points
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OEM Part Number: 1J0919133B (supersedes 1J0-919-133-B) — genuine Audi/VW fuel system washer/seal.
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Function: Seals the fuel pump/tank sending unit to prevent fuel or vapor leakage at the interface between the pump and tank.
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Also Known As: Fuel tank seal, fuel pump gasket, sending unit gasket, sealing ring, flange washer.
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Usage: Typically used during fuel pump installation/removal — not reusable once compressed/set.
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Compatibility: Fits a range of Audi models (A4, A3, Q3, Q5) and other VW Group vehicles with similar fuel pump systems.
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Material: OEM seals are usually made from rubber/ elastomer for fuel resistance; aftermarket equivalents may vary in material quality.
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Installation Location: Between fuel pump/sending unit flange and fuel tank opening.
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Weight & Size: A small, lightweight washer/sealing ring — dimensions vary by OEM specification (often ~13 mm thickness and ~113 mm diameter for some variants).













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