Adapter Fitting -4 To 1/8 NPT 45 Degree

The Adapter Fitting -4 To 1/8 NPT 45 Degree from ALLSTAR PERFORMANCE is a precision hydraulic and pneumatic connection component engineered for applications requiring compact, angled transitions between different port sizes. This 45-degree adapter fitting is essential for fluid systems where space constraints or plumbing geometry demands a bent connection rather than a straight one. Commonly used in racing fuel systems, brake lines, coolant circuits, and custom automotive builds, this adapter allows seamless integration between -4 AN (Aircraft National) male fittings and 1/8 inch NPT (National Pipe Thread) male ports.

Constructed from steel with a zinc oxide finish, this fitting delivers corrosion resistance and durability in both wet and dry environments. The 45-degree angle design eliminates the need for additional elbow fittings, reducing connection points and minimizing potential leak paths in high-pressure systems. The -4 AN male port accepts standard AN hose and fitting components, while the 1/8 NPT male end threads directly into NPT-compatible ports on engines, transmissions, fuel regulators, and auxiliary equipment. Zinc oxide plating provides long-term protection against rust and oxidation without compromising the structural integrity of the steel body.

This adapter fits best in racing, performance, and restoration projects where precision plumbing and reliable connections are non-negotiable. Off-road vehicles, drag cars, and street rods frequently benefit from angled fittings that route hoses cleanly around engine components and firewall obstructions. Professional technicians and DIY enthusiasts alike rely on ALLSTAR PERFORMANCE adapters for their proven reliability and consistent thread tolerances. Installation requires only hand tools and proper thread sealant on the NPT end; the AN side uses compression seals on compatible hose fittings. Verify port sizes on your fuel system, coolant loop, or brake circuit before ordering to ensure correct compatibility.