Billet Fuel Tank Adapter Fitting

Don't let your fuel system be choked by the factory outlet. The restrictive 7mm hose barb found on stock VW fuel tanks was designed for a 40hp engine—it simply cannot provide the volume needed for high-performance, large-displacement, or turbocharged builds.

The Fuel Tank Adapter is the professional way to convert your stock tank to a high-flow AN-style connection. CNC-machined from billet aluminum, this fitting allows for maximum fuel delivery while giving your chassis a clean, race-ready finish.

Engineering & Material Specs

• High-Flow Design: Replaces the tiny factory barb with a smooth-bore AN passage, eliminating fuel starvation at high RPM.

• Precision Machined: CNC-cut from 6061-T6 billet aluminum and finished in a durable black anodizing for lifetime corrosion resistance.

• Leak-Free Seal: Each fitting includes a premium white Teflon sealing washer to ensure a rock-solid, fuel-safe seal against the tank.

• Direct Fitment: Threads directly into the factory VW fuel tank outlet (M18x1.5).

Available Versions

Choose the sizing that matches your fuel system requirements:

• M18 to -6 AN: The industry standard for most high-performance street and dual-carburetor setups.

• M18 to -8 AN: The ultimate choice for high-horsepower turbocharged, EFI, or dedicated racing applications.

Vehicle Fitment

• Beetle & Super Beetle

• Karmann Ghia

• Type 3 (Notchback, Squareback, Fastback)

• The Thing (Type 181)

What’s Included

• (1) Billet Aluminum Fuel Tank Adapter

• (1) Teflon Sealing Washer