#12 On The Run T-Fitting w/Female Swivel Black

The #12 On The Run T-Fitting with Female Swivel in Black from FRAGOLA is a precision hydraulic adapter engineered for high-performance fuel, oil, and coolant line routing in custom engine builds and modified vehicles. Whether you're installing a remote oil filter setup, upgrading to fuel injection, or reconfiguring factory plumbing for engine bay space constraints, this compact tee fitting provides the directional split you need without leaks or system compromise. FRAGOLA's reputation for quality adapters makes this an industry standard choice among fabricators, performance shops, and serious DIY mechanics tackling complex modifications.

Built to AN/JIC standards, the #12 On The Run T-Fitting features a female swivel connection on the main run, allowing 360-degree rotation to accommodate tight corners and awkward engine compartment layouts without kinking lines or stressing hose ends. The black anodized aluminum construction resists corrosion and vibration fatigue while maintaining structural integrity under pressure cycling—critical for fuel systems running 40+ psi or oil lines pulling vacuum. The swivel design eliminates the need for intermediate adapters and reduces installation time, while the compact profile (5.4 x 2 x 7.7 inches) fits seamlessly into confined spaces where traditional rigid fittings cannot.

Ideal for LS engine conversions, turbo setups, and fuel system retrofits, the #12 sizing accommodates 3/4-inch hose and fittings—the industry standard for most performance applications. Installation requires no special tools beyond a wrench set; tighten the male ports to 25–35 ft-lbs and ensure the swivel connection is hand-tight but not over-torqued to preserve thread integrity. This fitting pairs seamlessly with FRAGOLA's matching hose, clamps, and adapter portfolio, giving you a complete, pressure-tested assembly for street or racing use.