The Aeroflow AF201‑04‑03 is a premium-grade stainless steel hose fitting designed for use with PTFE-lined (Teflon) racing hoses. This straight, non-swivel adapter converts a –4AN swivel port to a –3AN hose end via a one-piece stainless housing with a built-in compression olive for leak-free assembly. Ideal for fuel, oil, coolant, vacuum, or nitrous systems—including E85 setups.

Key Features

• Series‑200 stainless steel construction for corrosion resistance

• Converts –4AN swivel port to –3AN hose end

• One‑piece body with PTFE compression olive—no seals or ferrules needed

• Compatible with 200/250 series PTFE hoses, including E85-approved

• High-pressure rated, ideal for power steering, nitrous, fuel, brake, or vacuum lines

Compatibility

• Works with PTFE braided hoses using –3AN or –4AN fittings

• Suitable for fuel, oil, coolant, brake, clutch, vacuum, or nitrous systems

• Common in performance and motorsport builds, especially E85 or high-pressure setups