1956-1974 Oil Filler Vent Tube End Cap 311115541 - OEM Number(s) (311-115-541)
Stop oil drips and protect your engine with the correct vent tube cap.
This reproduction oil filler vent tube end cap is designed to seal the down-tube on your VW’s crankcase oil filler. When cracked, missing, or hardened, oil vapors can escape and create messy drips on the garage floor or in your engine bay. Without this cap, oil residue may also be drawn into the carburetor and burned, leading to smoky exhaust and carbon buildup. Installing a fresh end cap ensures your VW runs cleaner and more efficiently.
Fits the Following Volkswagen Models:
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1961–1974 Volkswagen Beetle (Standard)
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1971–1974 Volkswagen Beetle (Super)
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1964–1972 Volkswagen Karmann Ghia
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1960–1971 Volkswagen Bus
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1973–1974 Volkswagen Thing
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1966–1973 Volkswagen Type 3
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1956–1979 Volkswagen-based Dune Buggy / Sand Rail
Material/Finish
Dimensions
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Outer Diameter: 3/4 in (18.4mm)
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Inner Diameter: 5/8 in (15.8mm)
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Length: 1-7/8 in (48.6mm)
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Vent Tube Length: 36 in
Features/Benefits
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Direct replacement for cracked or missing vent tube end cap.
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Prevents oil drips in the engine bay or on the garage floor.
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Protects carburetor from ingesting unfiltered oil vapor.
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Designed to VW factory specifications for proper fit.
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VW reference part number: 311-115-541
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Sold individually, 1 required per Volkswagen.
Because Details Matter
A simple rubber cap plays a big role in keeping your VW clean and running properly. Without it, oil finds its way into your engine bay—or worse, into your carburetor. Sealing the filler tube with the right part ensures cleaner operation, less mess, and a car that’s a pleasure to maintain—because details matter.
Also known under these part numbers: (For reference only)
- 311 115 541
- 311-115-541
- 311115541
- 686420273851