K&N 81-0403 Universal Inline Electric Fuel Pump 50 GPH 5-10 PSI

Vehicle Fitment

• Universal fit (12 V inline electric fuel pump) - compatible with most vehicles and custom builds

Features

• High-flow design rated at approximately 50 gallons per hour at 5-10 psi pressure drop
• Universal mounting for a wide range of applications including gasoline, diesel, E85, methanol, and ethanol
• Self-priming operation for quiet and reliable fuel delivery
• Helps prevent vapor lock and fuel system flooding in low-pressure systems
• Compact inline design allows flexible mounting positions
• Includes inline filter and hardware for easy installation
• Durable construction engineered for long-term performance
• Backed by K&N lifetime limited replacement warranty (where applicable)

Specifications

• Part Number: 81-0403
• Flow Rate: ~50 GPH at 5-10 psi
• Voltage: 12 V DC
• Inlet/Outlet: 5/16" hose barb fittings
• Fuel Compatibility: Gasoline, diesel, biodiesel, E85, methanol, ethanol blends
• Compact inline pump body with built-in or included filter
• Includes mounting bracket and hardware

Included Components

• 1x K&N 81-0403 inline electric fuel pump
• 1x Inline fuel filter
• Mounting bracket and hardware kit
• Installation instructions

Product Description

The K&N 81-0403 Inline Electric Fuel Pump is designed to deliver high-flow, low-pressure fuel to support performance carbureted and EFI systems, custom builds, or alternative fuel applications. With a flow rate of approximately 50 gallons per hour at 5-10 psi, it ensures consistent fuel delivery to prevent vapor lock or flooding in low-pressure setups.

Its compact inline design allows versatile placement in fuel lines, while the included hardware and filter simplify installation. The pump operates quietly and reliably, providing long-term durability for demanding fuel system applications.

This pump is universal, so verify your system requirements - flow rate, pressure drop, hose size, and voltage - before installation. Ideal for enthusiasts and custom builds seeking reliable, high-capacity fuel delivery in low-pressure systems.