12an Male Socket Fitting Valvew/ Buna Seals

The 12AN male socket fitting valve with Buna seals is a critical fluid transfer component designed for high-performance hydraulic and fuel system applications in custom vehicles and engine builds. This fitting serves as the backbone of pressurized fluid delivery networks, whether you're routing brake fluid through a custom hardline setup, managing fuel injection pressure in a modified engine bay, or integrating auxiliary hydraulic systems into a competition build. Built to ISO 7241 standards, this 12AN fitting accommodates 3/4-inch hose sizes, making it an essential choice for fabricators and enthusiasts who demand reliable, leak-free connections in demanding automotive environments.

The male socket configuration allows hose connections to seat flush against the fitting body, creating a secure mechanical lock that resists vibration and pressure cycling common in engine compartments and suspension systems. Buna (Nitrile) seals provide robust chemical resistance to gasoline, diesel, mineral oils, and standard brake fluids across a wide temperature range, ensuring durability whether you're running carbureted power or fuel-injected performance platforms. The compact design—weighing just 0.31 lbs and measuring 4.9 x 1.7 x 7.45 inches—fits tight spaces where real estate is precious, such as firewall bulkhead feeds, fuel rail distribution blocks, or auxiliary cooler circuits in tight engine bays typical of vintage restomods or tube-frame race cars.

Mechanics and fabricators restoring vintage muscle cars, building modern hot rods, or upgrading braking and fuel systems will appreciate this JIFFY-TITE fitting's compatibility with standard 3/4-inch 12AN hose assemblies and universal AN-style distribution blocks. Installation is straightforward—the fitting threads into common manifold ports and adapters using standard wrenches, eliminating the need for specialty tools or custom fabrication. Whether you're converting an older carbureted engine to EFI plumbing, upgrading brake lines on a track car, or pressurizing cooling circuits on a forced-induction build, this proven, industry-standard fitting delivers the reliability and longevity that separates a solid system from a roadside failure.