AN To NPT 90 Degree -4 x 3/8in

The AN to NPT 90 Degree -4 x 3/8in adapter from ALLSTAR PERFORMANCE is an essential hydraulic and pneumatic fitting for professionals who need reliable connections between AN-spec hose systems and NPT (National Pipe Thread) ports. This 90-degree adapter bridges two industry-standard thread types, making it indispensable in race car fuel systems, high-performance engine builds, and fluid-transfer applications where space constraints demand compact angled connections. Whether you're fabricating a custom fuel line setup, installing brake lines, or connecting coolant systems, this adapter ensures leak-free performance under pressure.

Machined from aluminum and finished with black anodized coating, the AN to NPT 90 Degree adapter provides excellent corrosion resistance while maintaining a lightweight profile—critical for weight-conscious racing and high-performance applications. The -4 AN (5/16-inch hose) to 3/8-inch NPT configuration allows you to mate male AN threads directly to male NPT ports without additional adapters or complex plumbing workarounds. The 90-degree geometry minimizes hose routing radius and reduces fitment complications in tight engine bays where straight adapters won't fit. Black anodizing protects the aluminum body from oxidation and provides a professional appearance in visible installations.

This fitting serves racers, hot rodders, automotive technicians, and industrial users who regularly work with mixed-thread hydraulic systems. The compact 90-degree design is particularly valuable in engine compartments where every millimeter of clearance matters—ideal for fuel surge tank installations, transmission cooler lines, and intercooler plumbing. Installation requires standard wrench or hose crimping tools compatible with AN fittings. Verify your hose size (5/16-inch for -4 AN) and NPT port dimensions before ordering to ensure a secure, code-compliant seal.