CarBole 12D Micro Diesel Fuel Pump 12V 35 GPH 5/16" Inlet/Outlet with 100‑Micron Filter

CarBole 12D Micro Electric Diesel Fuel Pump is a compact 12V inline pump that delivers about 35 GPH at 4–7 PSI for diesel transfer, priming or booster use.

This compact, universal fuel pump is built for small engine and automotive diesel systems where a reliable, low-noise booster is required. With 5/16" inlet and outlet ports, a 100-micron inline filter, and included mounting hardware, it suits carbureted and auxiliary fuel setups on a wide range of 4-, 6- and 8-cylinder vehicles. The design focuses on steady flow, minimized vapor lock and straightforward installation near the fuel tank.

How does the pump perform in everyday fueling tasks?

The CarBole 12D delivers consistent flow suitable for fuel transfer and as a booster in diesel feed lines. It maintains a modest pressure band to support carbureted systems without over-pressurizing lines.

• Flow rate: approximately 35 gallons per hour for steady transfer.
• Operating pressure: around 4–7 PSI, compatible with low-pressure diesel systems.
• Voltage draw: operates on 12V and typically pulls 1–2 amps.
• Includes a 100-micron inline filter to catch particles before the pump.

Where and how should it be mounted in a vehicle?

Mount the pump as close to the fuel tank as practical to aid suction and reduce cavitation. Its low-noise motor allows flexible placement in engine bays or near fuel tanks, and the package contains bolts for secure attachment.

• Recommended placement: near the fuel tank for best suction and priming.
• Mounting: compact footprint with supplied bolts for secure installation.
• Connection: standard 5/16" inlet and outlet hose fittings for common fuel lines.
• Noise: designed for quiet operation, suitable for passenger compartments in some installations.

Will it work with my diesel vehicle or small engine?

This pump is intended as a universal fit for many carbureted diesel setups and auxiliary applications on 4-, 6- and 8-cylinder engines. Check that your system tolerates the 4–7 PSI operating range and uses 5/16" hoses for a simple swap-in.

• Compatibility: engineered for carbureted and low-pressure diesel systems.
• Hose size: 5/16" inlet and outlet—confirm hose ID match.
• Electrical: 12V supply, draws roughly 1–2 A; fuse protection recommended.
• Use cases: fuel transfer, anti-vapor-lock booster, auxiliary fuel pump.

What comes with the pump and what maintenance should I expect?

The package includes the pump, mounting bolts and a 100-micron in-line filter to protect internals from debris. Routine checks of the filter and hose connections will keep the pump running reliably.

• Included items: pump, two mounting bolts, and a 100-micron inline filter.
• Maintenance: periodically inspect and clean/replace the filter to avoid clogs.
• Durability: each unit is tested during manufacturing for baseline performance.
• Replacement parts: use compatible 5/16" fittings and fuel-rated hoses for longevity.

Who is this for: The CarBole 12D Micro Electric Diesel Fuel Pump is aimed at DIY mechanics, classic car restorers, and small-fleet operators who need a compact, low-noise pump for diesel transfer, line priming or boosting. It suits hobbyists installing auxiliary fuel systems, technicians replacing aging low-pressure pumps, and anyone looking for a straightforward, tested 12V diesel pump for carbureted engines that use 5/16" fuel lines.