Billet HP Fuel Filter - 3/8NPT 40-Micron 100GPH

The Holley Billet HP Fuel Filter with 3/8 NPT 40-Micron 100 GPH rating is an in-line fuel filtration solution engineered for high-performance engine applications requiring reliable fuel delivery under demanding conditions. Built from billet aluminum construction with black and clear anodizing, this filter combines durability with corrosion resistance—critical for vehicles exposed to harsh environments, salt air, or extreme temperature cycling.

The 40-micron stainless steel element provides effective particulate filtration without excessive restriction, while the 100 GPH flow rating supports fuel systems in modified or stock high-displacement engines. The 3/8 inch NPT female inlet and outlet ports ensure compatibility with standard fuel line adapters and system configurations. The compact footprint—measuring 4.3 by 1.65 by 6.7 inches—allows flexible placement within engine bays where space is limited, while the transparent bowl section enables quick visual inspection of filter condition without disassembly.

This filter is suited for hot rod builders, off-road racers, marine applications, and fuel system upgrades where consistent fuel purity and adequate flow are non-negotiable. The billet construction withstands vibration and thermal stress better than stamped alternatives, reducing premature failure in high-vibration environments common to competition vehicles and severe-duty trucks. Proper fuel filtration extends injector life, maintains combustion efficiency, and prevents fuel pump wear—making this component essential preventive maintenance in any serious performance build.