-12 Replacement Nitrile O-Rings (10)

The Aeromotive -12 Replacement Nitrile O-Rings are precision sealing components designed for hydraulic and fuel system applications where reliability under pressure is non-negotiable. This 10-pack set of -12 AN (JIC) sized nitrile o-rings delivers the redundancy serious technicians and system builders require when working on high-performance fuel injection, nitrous oxide delivery, and pressurized fluid transfer systems.

Nitrile material provides excellent resistance to petroleum-based fuels, hydraulic fluids, and oil while maintaining elasticity across a broad temperature range. The -12 AN size (3/4-inch outer diameter) is a common specification in performance fuel systems, where consistent sealing is critical to prevent leakage, maintain system pressure, and protect against contamination. Ten replacement rings per pack ensure you have spares on hand for assembly, rebuilds, and troubleshooting without service delays. Aeromotive is recognized for exacting tolerances in fuel system components, and these o-rings reflect that commitment to precision fit.

This pack is essential for engine builders, fuel system technicians, and enthusiasts maintaining or upgrading carbureted, EFI, nitrous, and forced-induction fuel delivery systems. Whether replacing worn seals during a system inspection, building a complete fuel system from scratch, or keeping emergency spares in your shop inventory, having verified o-rings of the correct size eliminates guesswork and prevents costly system failures. Aeromotive -12 AN nitrile o-rings are a direct OEM specification component for many Aeromotive fuel system assemblies.