CarBole Micro Electric Fuel Pump 12V 35 GPH — 5/16" Inlet/Outlet, 4–7 PSI Low-Pressure Inline Pump

This lightweight, universal pump helps reduce vapor lock and flooding by supplying consistent low-pressure flow to carbureted fuel systems. Built for simple installation on most 4-, 6- and 8-cylinder gasoline and non-alcohol diesel engines, it includes mounting hardware and a fitting for quick setup. The pump is intended for use with an inline filter and operates at a nominal 4–7 PSI, drawing just 1–2A at 12V.

How does this pump improve fuel delivery during warm-weather operation?

The CarBole Micro Electric Fuel Pump keeps fuel moving steadily to the carburetor, which helps prevent vapor pockets that cause vapor lock and intermittent stalling. Its continuous 35 GPH flow and low pressure output maintain consistent feed under varying engine temperatures.

• 35 gallons-per-hour flow for steady supply
• 4–7 PSI output to avoid overwhelming carburetor floats
• Compact design for placement close to the tank or carburetor
• Recommended inline filter to protect pump and engine

Will it fit my vehicle and how do I install it?

The pump is universal for most carbureted 4-, 6- and 8-cylinder engines and uses 5/16" inlet and outlet hose connections. Installation requires basic hand tools: mount the unit using the supplied hardware, connect fuel lines with the provided fitting, and wire to a switched 12V source with appropriate connectors and fuse protection.

• 5/16" inlet/outlet hose compatibility with standard fuel lines
• Includes one fitting and two mounting fasteners for quick setup
• Wire to a fused, switched 12V circuit (1–2A draw)
• Use a fuel filter between the tank and pump as recommended

What fuels can I use with this pump and what precautions are needed?

This pump is rated for gasoline and diesel (without alcohol additives). Avoid use with alcohol-blended fuels and methanol, and always fit a quality inline filter to prevent contamination-related wear or clogging that could reduce pump life.

• Suitable: gasoline and non-alcohol diesel
• Not for alcohol-containing fuels or methanol
• Mandatory inline filter to protect internal components
• Factory inspection completed for consistent out-of-box performance

How reliable and serviceable is the pump for routine driving?

Each pump undergoes a factory inspection to ensure correct assembly and reliable initial performance. Its simple, brush-type motor and serviceable mounting make it straightforward to replace if needed, while the modest current draw minimizes electrical strain on the vehicle.

• 100% factory inspection before shipping
• Low electrical consumption: 1–2 amps at 12V
• Compact profile for flexible mounting locations
• Easy replacement and minimal maintenance with a fitted filter

Who is this for: The CarBole Micro Electric Fuel Pump is aimed at DIY mechanics, restoration enthusiasts, and anyone running carbureted engines who wants a compact, affordable booster or transfer pump. It’s especially useful for classic cars, off-road rigs, small diesel setups (without alcohol) and situations where vapor lock or fuel starvation is a concern. For safe and long-lasting operation, pair it with a proper inline fuel filter and wire it to a fused 12V switched circuit.