CarBole 12V Electric Fuel Pump for Carbureted Engines — 5–9 PSI, 35 GPH, 5/16" Hose

This compact inline pump supplies steady low-pressure fuel flow for 4-, 6- and 8-cylinder carburetor setups, boat motors, lawn equipment and DIY fuel-transfer applications. Designed for 12V systems, it accepts 5/16" hose and must be mounted within 12 inches of the tank. The unit is built to reduce vapor lock and help prevent flooding when installed correctly.

How does this pump fit into my vehicle's fuel system?

The CarBole pump is an inline 12V electric unit intended for gravity-fed carburetor systems or as a booster for older mechanical setups. It connects to standard 5/16" ID fuel hose and works best when mounted close to the fuel source to maintain priming and avoid cavitation.

• Specifies 5/16" inlet and outlet for easy hose compatibility.
• Recommended mounting within 12 inches of the fuel tank.
• Operates at low pressure (5–9 PSI) suitable for carbureted engines.
• Flow rate of approximately 35 gallons per hour for reliable supply.

Can I use this pump with fuel-injected engines or alternative fuels?

This pump is not suitable for fuel injection systems or alcohol-based fuels. It is intended for gasoline/petrol applications and should not be used with E85, ethanol, methanol, or similar blends to avoid material compatibility and performance issues.

• Not compatible with fuel-injected engines.
• Designed specifically for gasoline/petrol; avoid alcohol fuels.
• Use as a transfer or booster pump for non-pressurized fuel systems.

What performance and installation details should I know?

The pump delivers roughly 35 GPH at a safe low-pressure range of 5–9 PSI, which is appropriate for carburetor float bowls and gravity-fed setups. Installation requires basic wiring to a 12V source and secure hose clamps; correct orientation and proximity to the tank are important for dependable operation.

• Operating voltage: 12 volts DC compatible with common battery systems.
• Pressure range: 5–9 PSI — tune for carburetor requirements.
• Flow rate: about 35 GPH, adequate for most small engines and transfer tasks.
• Mount within 12 inches of the fuel tank and use 5/16" hose with clamps.

What precautions and limitations apply when using this pump?

Follow mounting and fuel-type guidelines to avoid pump damage or unsafe conditions. The pump is not rated for pressurized fuel injection systems, nor for ethanol-rich or corrosive fuels. Electrical connections should be fused and routed away from heat sources.

• Do not use with E85, ethanol, methanol, or other alcohol fuels.
• Not suitable for fuel-injected engines or high-pressure systems.
• Install inline with proper hose, clamps, and a fused 12V supply.
• Keep wiring and the pump body clear of extreme heat and moving parts.

Who is this for? The CarBole 12V Electric Fuel Pump is aimed at hobbyists, classic car owners, small-boat operators and maintenance technicians who need a compact, low-pressure fuel pump for carbureted gasoline engines or for occasional fuel transfer tasks. It fits projects that require a straightforward 12V solution with easy 5/16" hose connections and modest flow, provided users follow the fuel-compatibility and mounting limits.