INPOST E8090 Electric Inline Fuel Pump 3/8" 30 GPH (5–9 psi) Universal Replacement

INPOST E8090 is a compact, universal electric inline fuel pump that delivers 30 GPH at 5–9 psi for reliable fuel delivery on aftermarket and replacement applications.

This inline electric fuel pump from INPOST is designed as an OEM-style replacement for a wide range of small engines and automotive setups. Compact and new out of the box, the E8090 installs in a 3/8" fuel line and provides steady flow and pressure for carbureted or low-pressure EFI systems. It’s intended for applications requiring 5–9 psi and is marketed as a universal 30 gallons-per-hour pump with part number E8090.

What are the key performance specs of the INPOST E8090?

The E8090 operates at low system pressures and produces up to 30 gallons per hour, making it suitable for many aftermarket low-pressure fuel systems. Pressure range and flow rate are tailored for consistent fuel delivery without excessive pressure spikes.

• Flow: 30 GPH (approx.).
• Pressure range: 5–9 psi.
• Line size compatibility: 3/8" fuel hose connection.
• Part number: E8090 — labeled for service replacement.

How do I install the INPOST E8090 inline pump?

Installation is straightforward for anyone familiar with basic fuel-line work: place the pump inline between the fuel tank and the engine, respecting inlet/outlet orientation and secure electrical connections. Always isolate the battery, relieve fuel pressure, and use proper clamps to prevent leaks.

• Mount inline on 3/8" fuel hose using clamp-on fittings.
• Wire to switched 12V power and ground, observing polarity.
• Secure to chassis away from excessive heat or moving parts.
• Test for leaks and confirm 5–9 psi operating pressure before use.

Which vehicles and systems is this pump compatible with?

The pump is a universal replacement intended for low-pressure applications such as carbureted engines, older EFI setups that specify low fuel pressure, and aftermarket builds. Compatibility depends on required pressure and hose diameter rather than vehicle make.

• Suitable for carburetor-fed small engines and classic cars requiring low pressure.
• Common in custom fuel systems, marine, and light-duty industrial equipment.
• Not intended for high-pressure modern direct injection systems.
• Confirm 3/8" hose and 5–9 psi requirement before ordering.

What should I expect in terms of quality and service life?

The E8090 is offered new as an OEM/replacement part, built to meet typical aftermarket durability standards. Lifespan will depend on installation environment, fuel quality, and duty cycle; regular inspection and proper mounting improve longevity.

• Condition: new, ready for immediate installation.
• Service designation: OEM / replacement part (E8090).
• Designed for steady low-pressure operation to minimize wear.
• Routine checks and clean fuel increase service life.

Who is this for? The INPOST E8090 is aimed at mechanics, restorers, and DIY vehicle owners replacing a failing low-pressure inline pump or building a custom fuel system that requires 5–9 psi at 3/8" line size. If you need a compact, straightforward pump with a 30 GPH capability for carbureted or similar low-pressure fuel setups, this unit is a practical and cost-effective choice. It’s not suitable for high-pressure EFI or modern direct-injection engines; verify your system specifications before purchase.