INPOST E8090 inline electric fuel pump — 3/8-inch line, 5–9 psi, ~30 GPH

The INPOST E8090 is a compact inline electric fuel pump delivering 5–9 psi and about 30 GPH through a 3/8" fuel line for universal replacement and aftermarket installations.

Designed as an OEM-style replacement or an upgrade for aftermarket systems, the E8090 offers consistent low-pressure fuel delivery for carbureted engines, fuel pumps in returnless systems, and other applications that require a steady 5–9 psi output. It is compact, new-condition, and sold under part number E8090 for straightforward identification during repairs and retrofits.

What specifications define the E8090 and how do they affect performance?

The E8090 is specified for 5–9 psi operating pressure, roughly 30 gallons per hour (GPH) flow, and fits 3/8" fuel line connections. These ratings make it suitable for low-pressure fuel systems where steady flow and gentle pressure are important.

• Operating pressure: 5–9 psi for stable delivery
• Flow rate: ~30 GPH (sufficient for many carbureted engines and small pumps)
• Line size compatibility: 3/8" fuel hose fittings
• Condition: new, OEM/replacement quality (part number E8090)

How do I install the E8090 inline fuel pump safely?

Installation involves positioning the pump along the 3/8" fuel line between tank and engine, securing it with clamps, wiring to a fused ignition-switched power source, and confirming correct fuel flow direction. Follow vehicle-specific routing, use proper connectors, and test for leaks before regular use.

• Mount with vibration-damping brackets or clamps
• Wire to a fused ignition-switched circuit only
• Observe fuel flow arrow orientation on the housing
• Check all hose clamps and test for leaks at startup

Which vehicles and setups is this pump compatible with?

Because the E8090 is described as universal and fits a 3/8" line, it works with many classic cars, hot rods, motorcycles, small engines, and retrofit projects that require a 5–9 psi pump. Always verify required pressure and flow for your engine or system before selection.

• Carbureted street engines and older vehicles needing low pressure
• Custom builds, restorations, and retrofit fuel systems
• Motorcycles and ATVs with matching line diameter
• Non-returnless aftermarket fuel systems that call for 5–9 psi

Who is this for: The INPOST E8090 is aimed at mechanics, restorers, and DIY enthusiasts who need a dependable, new inline fuel pump for low-pressure applications. It suits anyone replacing a worn OEM unit, upgrading a custom project, or configuring a straightforward universal fuel setup where compact size, 3/8" line compatibility, and a 5–9 psi range are required.