-4AN Female to -4AN Male 45 Degree Swivel Adapter

The -4AN Female to -4AN Male 45 Degree Swivel Adapter from Vibrant Performance is an essential hose fitting for high-performance fuel, coolant, and brake line systems in custom automotive applications. This compact adapter bridges two -4AN (1/4 inch nominal) connections while introducing a 45-degree offset, making it ideal for navigating tight engine bays, transmission tunnels, and fuel system layouts where straight runs aren't practical.

Whether you're building a fuel-injected conversion, upgrading a cooling system, or routing hydraulic brake lines around engine modifications, this swivel fitting allows clean, leak-free connections without crimping or kinking hoses. Vibrant Performance engineered this adapter with a precision 45-degree swivel design that reduces installation stress on hose assemblies and fittings. The swivel joint rotates freely, allowing you to install the adapter without twisting the connected hoses—a critical advantage in confined spaces where hose routing is fixed.

Manufactured to strict JIC (Joint Industry Council) or AN standards, the -4AN threads ensure reliable, vibration-resistant seals with proper ferrule and O-ring combinations. Mechanics and fabricators favor this adapter for fuel system upgrades, EFI retrofit kits, intercooler plumbing, and custom brake line work, making it a versatile choice for both street and track builds.