If you’re stocking an auxiliary tank, you need a dependable fuel pump that delivers steady flow, simple installation, and robust reliability. This guide highlights five top options that fit common auxiliary-tank setups for trucks, tractors, boats, and utility equipment. Each pick is suited to different use cases—from field work and fueling larger equipment to portable, on-the-go transfers. Use this overview to choose a pump that matches your tank size, fuel type, and maintenance preferences.
Buying at a glance:
- Fill-Rite FR1210HA1F: Best for heavy-duty field use and larger auxiliary tanks (15–60 gallons).
- VEVOR 16 GPM 12V: Best for quick, mid-size transfers with automatic nozzle and clean setup.
- ENGINEMAN Universal 12V, 35 GPH: Best for high-RPM carbureted engines and compact installations.
- VEVOR 15 GPM Cast Iron: Best for rugged durability and versatile fuels (gasoline, diesel, kerosene).
- GPI EZ-8 8 GPM: Best for mobile transfers from small to mid-size tanks with 12V power.
| Product | Best For | Key Benefit |
|---|---|---|
| Fill-Rite FR1210HA1F | Heavy-duty field tanks | High durability and 15 GPM flow |
| VEVOR 16 GPM 12V | Quick top-offs, mid-size tanks | Automatic nozzle, fast transfer |
| ENGINEMAN Universal 12V 35GPH | Compact installs, performance engines | 5-9 PSI, easy DIY install |
| VEVOR 15 GPM Cast Iron | Rugged, multi-fuel use | Cast-iron construction, strong performance |
| GPI EZ-8 8 GPM | Mobile fueling from small tanks | 12V system, self-contained package |
Fill-Rite FR1210HA1F 12V 15 GPM Fuel Transfer Pump
Best for heavy-duty field work, this pump uses cast-iron construction for durability in tough environments. It delivers 15 GPM, making it suitable for filling equipment in 15–60 gallon tanks. The 12V motor is compatible with wiring to a standard battery system, and the 2-inch bung mount simplifies installation on transfer tanks in truck beds. Caution: heavier build may require mounting hardware compatible with your frame.
VEVOR Fuel Transfer Pump, 12V DC 16 GPM
Best for quick top-offs and mid-size auxiliary tanks, this unit offers a 16 GPM flow with a 12V motor. The automatic shut-off nozzle enables hands-free fueling, while a fuel collection box helps minimize drips. Its aluminum housing keeps the unit lightweight yet durable. Limitation: the nozzle is automatic, but ensure your tank outlet matches the hose length for efficient reach.
ENGINEMAN Universal 12V Electric Fuel Pump 5-9 PSI
Best for compact installations, this 12V pump delivers 35 GPH with 5–9 PSI, suitable for high-RPM carbureted engines. It includes a complete installation kit and simple mounting, making it a practical booster pump for auxiliary tanks. Limitation: lower flow compared to larger GPM models, so choose this for smaller tanks or when space is tight.
VEVOR 12V DC 15 GPM Diesel Transfer Pump Kit
Best for rugged use with multiple fuels, this 15 GPM pump handles gasoline, diesel, and kerosene. Cast-iron construction with a robust nozzle and a 13 ft outlet provides flexibility for larger spaces. Caution: verify fuel compatibility with your storage system and ensure proper venting if using biodiesel blends.
GPI EZ-8 Fuel Transfer Pump, 8 GPM
Best for mobile fueling from smaller tanks, the EZ-8 offers 8 GPM and a 12V DC setup with a manual shut-off nozzle and hose. It’s designed for tank transfers on trailers or trucks, with compatibility for gasoline blends and some diesel blends. Limitation: lower flow means longer fill times for larger tanks.
SOLLON Electric Fuel Pump 12V 2.5-4psi
Best as a booster or standby unit, this SOLLON inline pump provides 2.5–4 psi with 30 GPH flow. It’s adaptable for a variety of 12V systems, including lawns, ATVs, and small generators. Caution: ensure the operating pressure aligns with your engine’s fuel pressure requirements to avoid fuel delivery issues.
Buying Guide
What to consider when choosing a fuel pump for an auxiliary tank
- Fuel type compatibility: Ensure the pump handles gasoline, diesel, kerosene, or blends you carry. Some units are multipurpose, others are fuel-specific.
- Flow rate needs: Larger tanks and heavier equipment benefit from higher GPM; smaller setups can use lower GPM without sacrificing performance.
- Operating voltage and wiring: Most portable pumps run on 12V DC. Check wiring length and mounting requirements to fit your vehicle or trailer.
- Durability and materials: Cast-iron or aluminum housings offer rugged durability. Consider environmental exposure (heat, moisture, dust).
- Installability: Look for complete kits (mounting hardware, hoses, nozzles) or be prepared to source components separately for a clean install.
- Auto shut-off and safety features: Automatic nozzles prevent overfills, while thermal protection reduces overheating risks on long transfers.
How to compare pumps quickly
- Higher GPM for large, quick transfers; lower GPM for precise fueling.
- Automatic shut-off nozzles reduce monitoring needs; manual nozzles give more control but require attention.
- Durable housings (cast iron vs aluminum) balance weight against longevity in field use.
- Compatibility with your tank outlet size and hose length affects ease of installation.
Common questions buyers ask
- Do these pumps work with biodiesel blends? Some models support biodiesel blends; verify listed compatibility before use.
- Is a separate fuel filter needed? Many kits include a filter; if not, add a compatible inline filter for longer life.
- Can I run these directly from a vehicle battery? Yes, most are 12V DC and designed for vehicle battery connections.
- What maintenance is required? Regularly check fittings for leaks, clean the nozzle, and replace worn hoses as needed.
This selection provides options across durability, flow rate, and installation style. For larger or more demanding auxiliary tanks, prioritize higher GPM and robust construction. For portable or compact setups, lighter units with easy DIY installation can save time and space.