AEM 25-204 High Volume Inline Fuel Filter 100 GPH -6AN ORB 10 Micron Universal

Vehicle Fitment

• Universal - compatible with any carbureted or fuel-injected vehicle, engine dyno, or race car equipped with -6AN ORB fuel line fittings and requiring inline fuel filtration up to 100 GPH / 340 LPH
• Designed for naturally aspirated and forced induction performance builds, EFI systems, carbureted high-flow applications, and standalone fuel delivery systems using -6AN fuel line connections
• Compatible with gasoline (including leaded race fuel), methanol, ethanol, E85, and gasoline/alcohol blended fuels
• Legal for use on emissions-controlled street vehicles, non-emissions vehicles, and race-only vehicles - does not affect vehicle emissions equipment

Fitment Notes

• Both inlet and outlet are -6AN female straight-cut O-ring boss (ORB) fittings. Confirm that your fuel line ends or AN fittings are -6AN male ORB for a direct connection. AN flare-to-ORB adapters are available separately if your fuel system uses standard AN flare fittings.
• Overall dimensions are 3.500 in (length) x 1.500 in (diameter) - a compact housing that fits in tight fuel system routing locations without requiring large clearance envelopes.
• Rated to support fuel pumps up to 340 LPH (100 GPH) output - confirm your fuel pump's flow rate does not exceed this rating at your operating fuel pressure to maintain adequate filter service life and flow performance.
• Also cross-listed as Earls Part #230605ERL - the same filter is sold under both brands.

Features

• 100 GPH / 340 LPH High-Flow Capacity: Engineered to support fuel pumps up to 340 LPH - covering the output range of the vast majority of high-performance inline fuel pumps used in street, track, and competition EFI builds. Flow rates of 12.32 GPM at 45 PSI and 2.63 GPM at 6 PSI ensure this filter does not become a restriction in high-demand fuel systems.
• 10 Micron Filtration Element: The 10-micron filter element captures fuel system contaminants - including rust particles, casting flash, debris from fuel lines, and particulate carried in pump fuel - that can damage precision fuel injectors, high-pressure fuel pumps, and fuel pressure regulators. Provides meaningful protection without the excessive flow restriction associated with finer filtration elements in high-flow applications.
• -6AN Female ORB Fittings - Both Inlet and Outlet: Both end caps are machined with -6AN female O-ring boss fittings, with precision-machined O-ring receiver grooves that provide a positive, leak-free seal. The ORB connection style eliminates the thread-form sealing limitations of standard NPT fittings and provides a cleaner, more positive connection than standard AN flare fittings in fuel system applications.
• 6061-T6 Billet Aluminum Housing - Hard Anodized Black: The filter body is machined from 6061-T6 billet aluminum for maximum strength-to-weight ratio and resistance to fuel system pressures. The hard anodized black finish provides a corrosion-resistant, heat-stable surface that maintains its appearance in the under-hood and chassis-mount environments typical of performance fuel system routing.
• Viton O-Rings and Gaskets - Broad Fuel Compatibility: All sealing O-rings and gaskets are made from Viton (fluoroelastomer) - a material with outstanding resistance to gasoline, methanol, ethanol, E85, and blended fuels. Viton seals maintain their integrity and sealing performance across the full temperature and pressure range of automotive fuel systems, without swelling or degrading when exposed to alcohol-based fuels that can attack standard rubber or nitrile seals.
• Compact 3.5 x 1.5-Inch Housing: The compact 3.500 in x 1.500 in dimensions make this filter easy to integrate into fuel rails, inline fuel system plumbing, and tight engine bay fuel line routing where larger filters would not fit or would complicate installation.

Specifications

• Part Number: 25-204
• Brand: AEM Electronics (AEM Performance Electronics)
• Cross-Reference: Earls Part #230605ERL
• Product Type: Universal High-Flow Inline Fuel Filter
• Flow Rating: 100 GPH (gallons per hour) / 340 LPH (liters per hour)
• Flow Rate at 45 PSI: 12.32 GPM
• Flow Rate at 6 PSI: 2.63 GPM
• Maximum Supported Pump Output: 340 LPH
• Filtration: 10 micron
• Inlet Connection: -6AN female straight-cut O-ring boss (ORB)
• Outlet Connection: -6AN female straight-cut O-ring boss (ORB)
• Housing Material: 6061-T6 billet aluminum
• Housing Finish: Hard anodized black
• Seals: Viton O-rings and gaskets
• Overall Length: 3.500 in
• Overall Diameter: 1.500 in
• Fuel Compatibility: Gasoline (including leaded race fuel), methanol, ethanol, E85, gasoline/alcohol blends
• Emissions Legal: Yes - legal for emissions-controlled, non-emissions, and race-use vehicles
• UPC: 090127974032
• Fitment: Universal
• Quantity: 1 (sold individually)

Included Components

• 1x AEM Universal High-Flow Inline Fuel Filter (25-204)
• Note: AN fuel line fittings and mounting hardware sold separately

Product Description

The AEM 25-204 is a universal high-flow inline fuel filter rated to 100 GPH (340 LPH) with -6AN female O-ring boss fittings on both ends and a 10-micron filter element - designed for high-performance EFI builds, standalone fuel delivery systems, and race fuel system applications where both maximum fuel flow and reliable contaminant filtration are required simultaneously.

The housing is machined from 6061-T6 billet aluminum and hard anodized black for a durable, corrosion-resistant finish. All sealing O-rings and gaskets are Viton - providing full compatibility with gasoline, methanol, ethanol, E85, and blended fuels without seal degradation. The precision-machined -6AN ORB end caps with O-ring receiver grooves deliver a positive, leak-free seal that outperforms standard NPT or AN flare connections in high-pressure fuel system use. At 3.5 x 1.5 inches, the compact housing integrates easily into fuel rail plumbing and tight fuel line routing. Also sold as Earls Part #230605ERL. Universal fitment.