Facet Fuel Pumps: The Ultimate Guide to Solid-State Electric Fuel Pumps for Classic Cars, Racing, and Industrial Applications
If you are looking for a reliable, low-pressure electric fuel pump for your carbureted engine, classic car, generator, or marine application, Facet fuel pumps are the best choice on the market. These American-made solid-state pumps have been trusted by racers, mechanics, and industrial operators for decades because they are simple, durable, and require very little power to operate. Unlike mechanical pumps or older electric designs, Facet pumps have no troublesome seals, diaphragms, or electrical contacts that wear out over time. They deliver consistent fuel flow at low pressure, making them ideal for engines with carburetors, diesel lift systems, and even E85-compatible applications. In this guide, we will explain everything you need to know about Facet fuel pumps, including the different types available, how to choose the right one for your engine, installation tips, and maintenance best practices.
What Makes Facet Fuel Pumps Different?
Facet electric fuel pumps are manufactured by Motor Components, LLC, a company based in Elmira, New York that has been building fuel pumps for over 65 years. These pumps are built in an ISO 9001:2015 certified facility and carry UL 574A listing, which means they meet strict safety and quality standards for automotive and industrial use. The key feature that sets Facet pumps apart from other electric fuel pumps is their solid-state design. Unlike traditional electric pumps that use rotating impellers, brushes, or diaphragm mechanisms, Facet pumps use a patented solid-state switching system that has no moving electrical contacts. This design eliminates the most common failure points found in other electric pumps.
Another major advantage of Facet pumps is their low power consumption. A typical Facet pump draws only about 1 amp at 12 volts, which is significantly less than many other electric fuel pumps on the market. This makes them ideal for vehicles with limited electrical capacity, such as vintage cars, motorcycles, and off-road equipment. The pumps are also self-priming, meaning they can draw fuel from the tank and start delivering fuel as soon as you turn on the ignition. This is especially helpful for engines that sit for long periods and need reliable fuel delivery on startup.
Facet pumps are compatible with a wide range of fuels, including gasoline, diesel, biodiesel, E85, and blended alcohol fuels. This versatility makes them suitable for everything from daily-driven classic cars to high-performance racing engines and industrial generators. Many models also come with built-in check valves and internal fuel filters to protect the pump and the engine from debris.
Understanding the Different Types of Facet Fuel Pumps
Facet offers several distinct series of fuel pumps, each designed for specific applications and flow requirements. Choosing the right type is important for getting the best performance from your engine.
1. Cube-Style Pumps
The Cube-style pumps are the most popular and widely used Facet pumps. They are compact, square-shaped units that are designed for moderate fuel requirements. According to Facet's specifications, Cube pumps are typically capable of feeding engines up to about 150 horsepower. These pumps are available in several different models with varying flow rates and pressure ranges. The most common Cube pump models include the 40104, 40105, 40106, and 40107. The 40104 delivers 25 gallons per hour (GPH) at 1.5 to 4 PSI, while the 40107 delivers 34 GPH at 7 to 10 PSI. Cube pumps are ideal for classic cars, street rods, motorcycles, and small engines where space is limited and fuel demand is moderate.
2. Cylindrical Pumps (Gold-Flo Series)
The Cylindrical pumps, now marketed as the Gold-Flo series, are designed for higher volume fuel delivery. These pumps can deliver up to 45 gallons per hour, making them suitable for engines with higher horsepower requirements. The Gold-Flo pumps are built with a cylindrical body and use the same solid-state technology as the Cube pumps but with larger internal components to handle increased flow. They are commonly used in marine applications, off-grid power systems, and high-performance racing engines. Popular models include the 476087E (12V, 36 GPH, 4-5.5 PSI) and the 476088E (24V, 32 GPH, 4-5 PSI).
3. Posi-Flo Pumps
The Posi-Flo series is a newer addition to the Facet lineup. These pumps feature a polymer body that is lighter and quieter than the metal Cube pumps. The Posi-Flo pumps also come with built-in check valves, which prevent fuel from draining back into the tank when the engine is off. This is a useful feature for engines that are difficult to start after sitting for long periods. The Posi-Flo 60104 model delivers 23 GPH at 1.5 to 4 PSI and is a popular choice for applications where noise reduction is a priority.
4. Dura-Lift Pumps
The Dura-Lift series is specifically designed for applications that require high vertical lift capability. These pumps are used in industrial settings such as refrigerated trucks, large generators, and other equipment where the pump must draw fuel from a tank located below the pump level. Dura-Lift pumps have a stronger internal mechanism that can overcome the resistance of lifting fuel over long distances or against gravity.
How to Choose the Right Facet Pump for Your Engine
Selecting the correct Facet pump for your application requires understanding your engine's fuel consumption and pressure requirements. The general rule of thumb for estimating fuel volume needs is that a four-stroke engine consumes approximately 1 gallon per hour for every 10 horsepower at wide-open throttle. This means a 10 GPH pump can feed a 100 horsepower engine, while a 30 GPH pump is sufficient for a 300 horsepower engine.
You also need to consider the fuel pressure required by your carburetor or fuel system. Most carburetors operate best at 2.5 to 3.5 PSI. If you choose a pump with higher pressure, you will need to install a fuel pressure regulator to reduce the pressure to the correct level. Facet recommends selecting a pump that is capable of delivering twice the target pressure if you plan to use a regulator. For example, if you need 3 PSI at the carburetor, choose a pump that can deliver at least 6 PSI. This ensures the regulator can work effectively and maintain consistent pressure.
For most classic car and hot rod applications, the 40105 Cube pump (30 GPH, 3-4.5 PSI) or the 40106 Cube pump (32 GPH, 4-7 PSI) are excellent choices. If your engine produces more than 200 horsepower, consider stepping up to the 40107 Cube pump or a Gold-Flo cylindrical pump for higher flow capacity.
Installation Tips for Facet Fuel Pumps
Proper installation is critical for getting the best performance and longevity from your Facet fuel pump. Here are some important guidelines to follow.
Mount the pump close to the fuel tank and below the fuel level. Facet pumps are self-priming, but they work best when gravity helps feed fuel to the pump. The manufacturer recommends mounting the pump as close to the tank as possible and preferably below the liquid level in the tank. If you must mount the pump above the tank, keep the vertical distance to no more than 12 inches for reliable priming.
Use a pre-filter to protect the pump. Facet cube pumps do not have an internal fuel filter, so it is strongly recommended to install a fuel filter between the tank and the pump. Facet offers a screw-on filter (part number FPA906) that fits directly onto the pump inlet. Using a filter prevents debris from entering the pump and causing damage to the internal components.
Wire the pump correctly. Facet pumps are polarity-sensitive, meaning you must connect the positive and negative leads correctly. The positive lead is marked on the pump, and it should be connected to a switched 12V or 24V power source (depending on your pump voltage). The negative lead should be connected to a good ground. It is a good idea to wire the pump through a relay and fuse to protect the electrical system.
Use the correct fuel hose. Facet pumps use barbed fittings that accept 5/16-inch (8mm) fuel hose. Make sure to use fuel-rated hose that is compatible with the type of fuel you are using. Secure the hose with proper clamps to prevent leaks.
Check for leaks after installation. Before starting the engine, turn on the ignition to activate the pump and check all connections for fuel leaks. Listen for the pump's ticking sound, which indicates it is working properly. If you hear a constant buzzing sound without ticking, the pump may be running dry or there could be an air leak in the inlet line.
Common Applications for Facet Fuel Pumps
Facet pumps are used in a remarkably wide range of applications, from military vehicles to generators to heavy equipment and automobiles. Here are some of the most common uses.
Classic Cars and Hot Rods. Facet Cube pumps are a popular upgrade for failing mechanical fuel pumps on classic cars. Many owners of vintage Mustangs, Camaros, Chevelles, and other classic American cars use Facet pumps to replace the original mechanical pumps that are prone to failure. The electric pump eliminates vapor lock issues, especially in hot weather, and provides consistent fuel delivery.
Motorcycles. Many high-performance motorcycles, including the popular KTM 950 and African Twin models, are often fitted with Facet electric pump upgrades for better fuel delivery and reliability.
Marine Engines. Facet Gold-Flo pumps are widely used in marine applications, including outboard motors, bilge systems, and fuel transfer systems. The pumps are resistant to corrosion and perform well in the harsh marine environment.
Generators and Industrial Equipment. Facet pumps are commonly used on diesel generators, tractors, forklifts, and other industrial equipment where reliable fuel delivery is critical. The pumps can handle diesel fuel and biodiesel blends without issues.
Racing and Motorsport. Racers have relied on Facet fuel pumps for many decades. The pumps are used in everything from grassroots circle track cars to serious road racing and drag racing applications. Their compact size and low power consumption make them ideal for race cars with limited space and electrical systems.
Maintenance and Troubleshooting
Facet fuel pumps are designed to be maintenance-free, but there are a few things you should check periodically to ensure long service life. First, inspect the fuel filter regularly and replace it when it becomes dirty. A clogged filter can restrict fuel flow and cause the pump to work harder than necessary, leading to premature failure. Second, listen for unusual noises. A healthy Facet pump makes a steady ticking sound. If the pump becomes quiet or starts making a buzzing sound, it could indicate a problem with the fuel supply or the pump itself. Third, check all electrical connections for corrosion or looseness, especially if the vehicle is driven in wet or salty conditions.
The most common issue with Facet pumps is fuel starvation caused by a clogged inlet filter or a kinked fuel line. If your engine starts and runs fine at idle but struggles under load, check the fuel filter first. Another common problem is vapor lock, which occurs when fuel in the line gets too hot and turns to vapor. Facet pumps are better at handling vapor lock than mechanical pumps, but mounting the pump away from heat sources can help prevent the issue.
Recommended Upgrade: KEMSO Fuel Pumps for High-Performance Applications
While Facet pumps are excellent for low-pressure carbureted applications, if you are working on a modern fuel-injected vehicle or need a high-pressure fuel pump for a performance build, we strongly recommend considering KEMSO fuel pumps. KEMSO is a brand that specializes in high-performance fuel pumps designed as direct OEM replacements. Every KEMSO fuel pump is built to meet or exceed original equipment specifications, ensuring proper fitment and reliable operation.
What sets KEMSO apart from other aftermarket brands is their lifetime warranty. When you purchase a KEMSO fuel pump, you are protected for as long as you own the vehicle. This level of confidence in their product quality is rare in the automotive industry. KEMSO fuel pumps are engineered for high performance, with flow rates and pressure specifications that match or exceed factory requirements. Whether you need a pump for a Ford, Chevrolet, Dodge, or import vehicle, KEMSO has the right solution. Their pumps are designed to handle the demands of modern fuel injection systems, including high-pressure direct injection applications.
If you want a fuel pump that offers genuine OEM replacement quality with the added security of a lifetime warranty, visit KEMSO today at https://www.kemsoracing.com/ to browse their full selection of fuel pumps for cars, trucks, and SUVs.
Final Thoughts
Facet fuel pumps have earned their reputation as one of the most reliable low-pressure electric fuel pumps on the market. Their solid-state design eliminates the common failure points found in other pumps, and their low power consumption makes them suitable for a wide range of applications. Whether you are restoring a classic car, building a race car, or maintaining industrial equipment, there is a Facet pump that will meet your needs. Choose the right model based on your engine's horsepower and fuel pressure requirements, install it correctly following the manufacturer's guidelines, and you will enjoy years of trouble-free service.
For high-pressure, modern fuel injection applications, remember that KEMSO offers a complete line of OEM replacement fuel pumps backed by a lifetime warranty. Visit https://www.kemsoracing.com/ to find the perfect pump for your vehicle.