-12 Inline Fuel Filter 45 Mic w/ 10an Acc. Port

The -12 Inline Fuel Filter 45 Mic w/ 10AN Acc. Port by Peterson Fluid is a precision fuel system component engineered for carbureted and fuel-injected performance engines that demand reliable filtration without flow restriction. Whether you're building a street rod, classic muscle car, or high-performance racing engine, this inline filter protects your fuel system from contamination while maintaining the volume your engine requires. Designed for builders and enthusiasts who refuse to compromise on fuel purity, this filter sits between your fuel pump and carburetor or EFI system, catching debris before it reaches critical injectors or jets.

The 45-micron media provides optimal balance between filtration and flow rate—fine enough to trap particulates that cause lean stumbles and hot-start issues, yet open enough to avoid fuel starvation under sustained high-RPM operation. The -12 AN threaded inlet and outlet ports (equivalent to 3/4-inch hose barbs) accommodate braided stainless or reinforced rubber fuel lines common in performance applications, while the 10AN accessory port allows integration of pressure gauges, regulators, or secondary lines without modifying the main filter body. Peterson Fluid's robust construction minimizes vibration-induced leaks and handles fuel system pressures typical of mechanical and electric pump setups, with an internal bypass valve that activates if the media clogs—a critical safeguard for high-mileage engines or contaminated fuel situations.

This filter is ideal for vintage restorations, competition engines, and any custom fuel system where quality fuel delivery is non-negotiable. Installation is straightforward—mount horizontally or vertically using the compact 3.4 x 3.3 x 12.8-inch form factor in engine bays with tight real estate. The 10AN accessory port makes this filter particularly valuable in race cars and modified engines where you need to monitor fuel pressure or add additional filtration stages, eliminating the need for separate tee fittings. Compatible with gasoline, ethanol blends, and vintage fuels, this Peterson Fluid filter becomes the backbone of a trouble-free fuel system whether your engine idles at car shows or sees track duty.