#4 90 Degree Auto-Fit

The #4 90 Degree Auto-Fit hose end fitting by EARLS is an essential component for any custom fuel, coolant, or hydraulic line installation in high-performance and street rod applications. Designed for builders and mechanics who demand reliability in modified engine bays, this fitting bridges the gap between 4 AN hose and 4 AN female ports with precision engineering. Whether you're upgrading fuel delivery on a carbureted restoration or installing braided stainless lines on a turbocharged build, this 90-degree adapter eliminates guesswork and ensures leak-free connections at critical junction points.

Constructed from lightweight aluminum with blue and red anodized finish, the #4 90 Degree Auto-Fit provides corrosion resistance while maintaining the clean aesthetic preferred in show-quality installations. The auto-fit design means the hose barb engages securely without requiring a secondary clamp in many applications—a feature that saves installation time and reduces potential leak points. At just 0.04 lbs and measuring 1.25 x 0.75 x 2.85 inches, this fitting is compact enough to navigate tight engine compartments while delivering the flow capacity and pressure rating required for modern fuel injection systems, EFI conversions, and high-volume cooling circuits.

Experienced fabricators and DIY enthusiasts alike benefit from EARLS' reputation for precision hose end fittings that hold up under sustained pressure and temperature cycling. The 90-degree configuration is particularly valuable in tight engine compartments where straight fittings won't clear headers, turbo manifolds, or firewall-mounted reservoirs. This fitting is compatible with any 4 AN hose and 4 AN female port combination, making it suitable for fuel systems, oil cooler lines, transmission coolers, and intercooler plumbing on both naturally aspirated and forced-induction platforms.