12AN Viton O-Ring 2/pkg

The 12AN Viton O-Ring 2/pkg by REDHORSE PERFORMANCE is a precision sealing component engineered for high-pressure hydraulic and fuel system applications. Supplied as a matched pair, these o-rings are essential for anyone building or maintaining performance fuel systems, hydraulic circuits, or pressurized fluid transfer lines where reliability and leak-free operation are non-negotiable. This product serves technicians, fabricators, and performance enthusiasts who demand OEM-grade sealing integrity in custom or race-spec systems.

Manufactured from Viton fluoroelastomer, the 12AN Viton O-Ring offers superior chemical resistance and temperature stability compared to standard nitrile alternatives, making it ideal for fuel, oil, and synthetic fluid environments. Viton maintains elasticity across a wide temperature range—critical for engine bay and underbody installations where thermal cycling is constant. The 12 AN size (approximately 0.75-inch nominal diameter) is the industry standard for mid-flow fuel rails, regulator ports, and manifold-mounted fittings in both naturally aspirated and forced-induction systems. The pair format eliminates single-ring waste and ensures you have backup seals for installation or replacement needs.

Ideal for street and race fuel system builds, turbocharged engine conversions, and hydraulic control upgrades, these o-rings are compatible with all standard AN-spec fittings and hose adapters rated for 12 AN connections. Installation is straightforward—lightly lubricate with silicone grease or fuel-safe lubricant before seating in the groove to ensure proper seating and prevent extrusion. Keep spares in your shop kit for system maintenance, custom fabrication projects, or emergency repairs during track events.