10AN FM to10AN FM 180Deg Swivel Coupler

The 10AN FM to 10AN FM 180 Degree Swivel Coupler from REDHORSE PERFORMANCE is engineered for custom fuel, oil, and coolant line routing in high-performance engine builds where space constraints or complex plumbing layouts demand flexibility. This adapter solves a common problem faced by engine builders and fabricators: accommodating hard-line connections in tight engine bays without kinking, binding, or requiring multiple fittings. Whether you're installing a remote oil cooler system, custom fuel delivery setup, or modified cooling circuit, this swivel coupler provides the articulation needed to maintain proper flow while keeping your system organized and reliable.

Built with precision-machined aluminum construction, the 10AN FM to 10AN FM 180 degree swivel design allows two hard lines or hoses to connect at a full 180-degree angle while maintaining full flow capacity through a 10AN port size. The swivel mechanism is internally sealed and rated for high-pressure applications typical of modern fuel injection, turbo oil return, and forced-induction cooling systems. REDHORSE PERFORMANCE fixtures are known for their tight tolerances and corrosion-resistant finishes, ensuring leak-free performance across thousands of hours of driving—critical when fuel or coolant pressures can exceed 60 psi. The compact footprint (3.825 x 1.5 x 5.939 inches) and lightweight design (0.205 lbs) make this coupling ideal for underhood fabrication where every inch and ounce matter.

This swivel coupler is essential for builders working on turbocharged, supercharged, or naturally aspirated performance engines requiring custom plumbing layouts—from LS-platform swaps to water-cooled intercooler installs to aftermarket fuel system upgrades. Technicians and fabricators rely on REDHORSE swivel fittings to eliminate the need for multiple adapters, reducing pressure drop and simplifying system diagnostics. The 10AN FM (female) to 10AN FM configuration ensures compatibility with standard braided stainless steel -10 hose assemblies and hard-line tubing common in the performance community. Installation is straightforward for anyone familiar with AN line systems; simply torque the fittings hand-tight plus one-quarter turn and verify all connections under pressure before full operation.