SKU: RHP816-04-04-5
UPC: 848487002496
MPN: 816-04-04-5
The REDHORSE PERFORMANCE 4AN STR Male Adapter 1/4in NPT Male Clear is a precision hydraulic fitting designed for custom fuel, oil, and coolant line systems in performance and modified vehicles. This straight adapter bridges AN (Army-Navy) metric hose standards to NPT (National Pipe Thread) ports, making it essential for integrating aftermarket fuel injection systems, turbo installations, custom cooling loops, and auxiliary fuel systems where OEM ports don't match your chosen hose diameter.
Engineered from lightweight aluminum with a clear anodized finish, the 4AN STR Male Adapter features a robust hex body design for secure wrench engagement and leak-free installation. The straight (STR) geometry eliminates turbulence in high-flow applications, which is critical for fuel pressure stability under boost or high RPM operation. The 1/4-inch NPT male thread accepts standard NPT female ports found on fuel pressure regulators, oil filters, and manifold blocks.
This adapter suits any engine builder, tuner, or DIY modifier managing fuel system upgrades, auxiliary fuel cell installations, or turbo plumbing. Its compact design fits tight engine bay constraints common in supercharged or turbocharged conversions, providing a direct, code-compliant connection point without the need for costly custom fabrication.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
