RUIDELI 12V Low-Pressure Inline Fuel Pump Kit, 8mm Inlet/Outlet — 70 L/h Flow, Copper Motor

The RUIDELI 12V low-pressure inline fuel pump is a universal electric pump kit that delivers stable fuel flow (≈70 L/h) at 2.5–4 PSI for carbureted engines, boats, lawn equipment and DIY installs.

This compact, plunger-style pump combines a pure-copper motor with a built-in check valve and a complete set of hoses and fittings so you can replace failing pumps or outfit custom low-pressure fuel systems quickly. Its 12V design and 8mm (5/16") inlet/outlet make it compatible with most small engines, generators, trucks and boats that require gentle, continuous fuel delivery. The included fuel line, filters and shut-off valves are rated for ethanol blends and standard oils to support a variety of applications.

How does this pump maintain steady fuel delivery for small engines?

The pump uses a plunger-type mechanism driven by a 100% copper motor to create stronger suction and consistent oil supply. A factory-installed check valve prevents backflow when the system is off, preserving priming and reducing vapor lock risk in low-pressure systems.

• Flow rate approximately 70 L/h for continuous delivery
• Output pressure 2.5–4 PSI suitable for carburetors and gravity-feed systems
• Built-in check valve to stop reverse flow and maintain prime
• Pure-copper motor for durable electrical performance

Which fuels and temperatures is the pump and hose compatible with?

The supplied 5/16" (8mm) NBR fuel line is formulated to resist a wide range of petroleum products and ethanol blends, including E10 and E85. Materials and adhesives meet HG/T 3038-2008 testing standards and sustain performance across common outdoor temperature ranges.

• NBR inner tube and synthetic fiber outer for chemical and abrasion resistance
• Compatible with gasoline, diesel, ethanol blends, lubricants and some antifreezes
• Operational temperature range −30°C to 100°C
• Working pressure rated to 20 kg (2000 kPa), burst to 60 kg (6000 kPa)

What hardware and extras are included for installation?

This kit arrives ready for DIY fitting: a single low-pressure pump plus a 10-foot NBR fuel line, two inline filters, two manual shut-off valves and 15 hose clamps. Those items make it simple to route lines, filter contaminants, and secure connections in mobile or stationary setups.

• 1 x 12V low-pressure inline fuel pump (8mm inlet/outlet)
• 10 ft 5/16" (8mm) nitrile rubber fuel hose, adhesive strength 2.7 KN/m
• 2 x fuel filters to catch particulates and protect carburetors
• 2 x manual fuel shut-off valves and 15 clamps for leak-proof joins

How easy is it to fit this pump into my vehicle or equipment?

The compact design and standard 8mm fittings let you integrate the pump into many OEM and custom fuel paths with basic tools. Wiring requires a 12V supply and suitable fuse; placements close to the fuel tank or within a protected compartment help extend service life.

• Standard 8mm inlet/outlet matches common 5/16" fuel hoses
• Simple inline mounting for quick replacement of old pumps
• Requires 12V electrical connection and appropriate inline fuse
• Ideal for above-tank or near-tank installations with vibration damping

Who is this for: The RUIDELI 12V low-pressure inline pump kit is designed for mechanics, hobbyists and fleet owners who need a dependable, easy-to-install fuel pump for carbureted cars, small trucks, boats, lawn mowers, generators and other 12V equipment. It’s especially useful for DIY repair jobs or custom builds that require a reliable low-pressure fuel source, ethanol compatibility, and a complete set of hoses and fittings for immediate installation.