Facet Fuel Pump: The Complete Guide for American Vehicle Owners
If you own a classic car, motorcycle, or any vehicle with a carbureted engine, a Facet fuel pump is the most reliable upgrade you can make for consistent fuel delivery. Facet fuel pumps have been manufactured in the United States since 1950 and are widely recognized as the gold standard for low-pressure electric fuel pumps in the automotive aftermarket. Whether you are dealing with vapor lock issues on a hot summer day or simply want to replace an unreliable mechanical pump, choosing a Facet fuel pump will solve your fuel delivery problems permanently.
What Makes Facet Fuel Pumps Different?
Facet fuel pumps are engineered and assembled in the United States at the Motor Components facility in Elmira, New York. This facility has been producing fuel pumps continuously since 1950, and the company operates under ISO 9001-2015 quality standards. The pumps are UL AU1501 listed, Reach and RoHS compliant, and meet Coast Guard standards for marine applications. These pumps have a Mean Time Between Failures rating of up to 10,000 hours, which means they will outlast most vehicles on the road today.
The key difference between Facet pumps and cheaper alternatives comes down to the solid-state electronics inside. Unlike mechanical fuel pumps that use diaphragms and moving parts that wear out over time, Facet solid-state pumps have no electrical contacts, bearings, or diaphragms to fail. This design makes them last four to five times longer than standard electric fuel pumps. The sealed electronics also provide transient protection and reverse polarity protection, which means you cannot damage the pump by accidentally connecting the wires backward.
Types of Facet Fuel Pumps for Different Applications
Solid State Cube Pumps
The Facet Cube Solid State pump is the most popular model for general automotive use. These pumps are compact, cube-shaped units designed for moderate fuel requirements. They are self-priming and draw very low power, averaging only 1.4 amps during operation. The operating pressure ranges from 3.0 to 4.5 PSI, and the fuel flow rate is approximately 113 liters per hour. This makes them ideal for carbureted engines in classic cars, hot rods, and motorcycles that need reliable fuel delivery without excessive pressure that could damage carburetor floats.
The Cube pumps come in several part numbers. The SS500, which is part number 40104, is designed for standard road use and delivers 25 gallons per hour at 4.0 PSI. The SS503, part number 40107, is a competition version that provides higher flow rates for performance applications. If you are building a street rod or restoring a classic muscle car, the SS500 will handle most stock and mildly modified engines without any issues.
Posi-Flo Pumps
The Facet Posi-Flo pumps share the same internal solid-state technology as the Cube pumps but come in a polymer housing that operates much quieter. The two-bolt installation design makes them quick to install, and the low power consumption is identical to the Cube models. These pumps are the best choice if noise reduction is important to you, such as in a daily driver where you do not want to hear the pump clicking every time it cycles. The Posi-Flo series typically starts with part numbers beginning in "60" and provides the same reliable performance as the metal-housed versions.
Cylindrical Pumps
For higher horsepower applications and competition use, Facet offers cylindrical pumps in both silver top and red top configurations. The silver top pumps work well for moderate performance builds, while the red top pumps deliver the highest flow rates available from Facet. These cylindrical pumps are commonly used in race cars, off-road vehicles, and high-performance street machines that demand more fuel than standard pumps can provide. The part numbers for cylindrical pumps often start with "40," "47," or "48," and some models include an additional letter at the end to indicate specific performance characteristics.
Gold-Flo and Dura-Lift Pumps
The Gold-Flo pumps feature solid-state circuitry and are compatible with all fuel types including gasoline, diesel, biodiesel, and E85 ethanol blends. These pumps meet or exceed all OEM performance specifications and are easy to install. They come in both 12-volt and 24-volt configurations to suit different vehicle electrical systems.
The Dura-Lift pumps are designed for industrial applications and heavy-duty machinery. They are self-priming and rated for all fuel types, making them suitable for agricultural equipment, generators, and other demanding environments. The Dura-Lift pumps feature a stainless steel 80-micron fuel filter that can be cleaned and reused, which saves money on replacement filters over the long term.
Why Facet Pumps Are Better Than Mechanical Fuel Pumps
Mechanical fuel pumps have been standard equipment on carbureted engines for decades, but they have several inherent weaknesses. Mechanical pumps are driven by the engine camshaft, which means they only work when the engine is running. This makes starting a car that has been sitting for a while difficult because the carburetor bowl is empty and the pump cannot prime the system until the engine cranks over several times.
Heat is another major problem with mechanical pumps. Because they are mounted directly on the engine block, they absorb heat from the engine. On hot days, gasoline can vaporize inside the pump, causing vapor lock. This stops fuel flow entirely and leaves you stranded on the side of the road until the pump cools down. Facet electric pumps can be mounted away from the engine in a cooler location, eliminating vapor lock issues entirely. When installing a Facet pump, mounting it with the outlet higher than the inlet helps prevent vapor lock in hot conditions. Facet recommends mounting the pump at a 45-degree to completely vertical position with the outlet facing upward.
Electric fuel pumps also provide instant fuel delivery. As soon as you turn the ignition key, the pump begins pressurizing the fuel line, so the engine starts immediately without extended cranking. This is especially valuable for vehicles that are driven infrequently or stored during winter months.
Installation Guidelines for Facet Fuel Pumps
Installing a Facet fuel pump is straightforward and can be completed with basic hand tools. The pump should be installed using at least 18-gauge wire, which matches the lead wires coming from the pump itself. This wire gauge is sufficient for the 1.4 amp current draw and ensures the pump receives full voltage for reliable operation.
For gasoline installations, mounting the pump at a 45-degree angle with the outlet pointed up helps prevent vapor lock in hot weather conditions. However, mounting the pump horizontally will not affect its performance. The pump should be located as close to the fuel tank as practical, and always on the frame rail or another solid mounting point that keeps it away from exhaust heat.
All Facet fuel pump models are self-priming, which means they can pull fuel from the tank even when the pump is mounted above the fuel level. Pumps with an internal check valve have a higher vertical lift rating than pumps without the check valve. All Facet pumps can lift fuel a minimum of 24 inches vertically, which covers virtually all installation scenarios in cars and trucks.
One important feature of the Cube Solid State pump is that it can be mounted in a positive ground electrical system. This is common in older British and European vehicles. For positive ground installations, the red wire connects to the frame and the black wire connects to the negative side of the battery.
Common Applications for Facet Fuel Pumps
Classic cars from the 1950s through the 1970s are the most common application for Facet fuel pumps. American muscle cars, vintage Ford trucks, and European sports cars all benefit from the reliable fuel delivery these pumps provide. Many owners of Chevrolet Bel Airs, Ford Mustangs, and Plymouth Barracudas have made the switch from mechanical to electric pumps to solve hot-starting problems and improve overall reliability.
Motorcycles with carburetors are another excellent application. Vintage Triumphs, Nortons, BMW airheads, and Harley-Davidson Shovelheads and Evos all run better with a consistent fuel supply. The small size and low current draw of the Cube pumps make them easy to hide under the seat or behind side covers.
Industrial applications include generators, pumps, compressors, and other stationary engines that need dependable fuel delivery. The Dura-Lift pumps are particularly well-suited to these environments because of their heavy-duty construction and reusable stainless steel filter.
Marine applications are also common because Facet pumps meet Coast Guard standards for fuel system components. Boat owners appreciate the corrosion-resistant construction and the ability to mount the pump away from the engine compartment for safety.
Signs Your Fuel Pump Needs Replacement
Knowing when your fuel pump is failing can save you from being stranded. The most common warning signs include hard starting, especially after the vehicle has been sitting for a few days. If you have to crank the engine excessively to get it to fire, the mechanical pump may have lost its prime or developed a leak in the diaphragm.
Engine sputtering or surging during driving indicates inconsistent fuel delivery. This often happens under load, such as when climbing hills or passing other vehicles. The engine may feel like it is running out of gas even though the tank is full. Stalling at idle or when coming to a stop is another red flag that points to fuel delivery problems.
Excessive noise from the fuel pump area is also a warning sign. Mechanical pumps often make a clicking or tapping sound when the diaphragm is failing, while electric pumps may whine or groan when the internal bearings are wearing out. If you hear unusual noises from the pump area, it is wise to replace the pump before it fails completely.
When fitting a new fuel pump, mechanics recommend replacing the fuel filter at the same time and running a fuel system cleaner through the system. This gives you a complete fuel system overhaul and ensures you get the maximum life from your new pump.
Maintaining Your Facet Fuel Pump for Long Life
One of the best things about Facet fuel pumps is how little maintenance they require. The solid-state design means there are no points to adjust, no diaphragms to replace, and no bearings to lubricate. However, keeping the fuel clean is essential for long pump life. The internal fuel filters on Gold-Flo pumps use a 74-micron nylon mesh filter that can be replaced when needed. The Dura-Lift pumps use an 80-micron stainless steel filter that can be cleaned with solvent and reused indefinitely.
Avoid running the fuel tank low on fuel. When the tank is low, the pump may draw in air along with fuel, which reduces cooling and can cause the pump to overheat. Running on a near-empty tank also stirs up sediment and debris that has settled at the bottom, which can clog the pump filter and reduce flow.
For vehicles that are stored for long periods, consider adding a fuel stabilizer to prevent the gasoline from breaking down and forming varnish. Varnish deposits can clog the pump internals and reduce performance. Starting the engine and running it until warm every few weeks also helps keep the fuel system in good condition.
Fuel Compatibility: What You Need to Know
Facet fuel pumps are compatible with virtually all common automotive fuels. This includes regular gasoline, premium gasoline, diesel fuel, biodiesel blends, and E85 ethanol fuel. The pumps are also compatible with blended alcohol fuels and common fuel additives. This wide fuel compatibility makes them suitable for modern flex-fuel vehicles as well as classic cars running on pump gas with ethanol content.
The internal materials are selected to resist corrosion and swelling caused by ethanol and other alcohol-based fuels. Viton O-rings and seals are used in applications where ethanol exposure is expected, and the pump bodies are made from materials that do not degrade when in contact with alcohol fuels.
For diesel applications, Facet pumps are the leading brand for electronic diesel priming fuel pumps. Many modern diesel engines use electric lift pumps to prime the fuel system before starting, and Facet pumps have been the go-to choice for Original Equipment Manufacturers for decades. The Cube and Dura-Lift pumps have models with internal stainless steel components that meet the requirements of Tier 4 electronic fuel injection engines used in off-road equipment.
Why KEMSO Fuel Pumps Are the Smart Choice for Performance Builds
While Facet pumps are excellent for standard applications and carbureted engines, if you are building a high-performance vehicle or need a direct OEM replacement for a modern fuel-injected vehicle, KEMSO fuel pumps offer superior performance and unmatched value. KEMSO pumps deliver over 20 percent more flow than stock OEM pumps at 43 PSI, making them ideal for daily drivers, fast road cars, or anyone looking to upgrade from a faulty factory pump.
KEMSO fuel pumps are designed for both gasoline and E85 ethanol fuel, giving you flexibility to run whatever fuel your build requires. Each pump is individually tested for flow and pressure performance before leaving the factory, and they come with a lifetime warranty that backs up the quality promise. The pump bodies are serialized, and support is provided by US-based technicians who understand American vehicles and performance requirements.
For example, the KEMSO 340LPH fuel pump supports up to 600 brake horsepower and features a bypass valve set at 125.8 PSI. This higher bypass pressure means the pump will not prime out under boost, unlike lower-rated pumps that can lose pressure when the engine demands maximum fuel delivery. Whether you are running a turbocharged engine, a supercharged build, or just want a reliable replacement for your daily driver, KEMSO has a pump that fits your needs.
KEMSO pumps come as complete kits with everything you need for installation. The kits include gradient density fuel strainers, flex hoses, rubber bases, Viton grommets, tank seals, wiring connectors, and zip ties. Multiple strainers and seals are included in each kit to cover different vehicle models, so you do not have to worry about compatibility issues.
The pump body diameters range from 3 centimeters to 3.8 centimeters depending on the application, and operational pressure ranges from 43 to 68 PSI. This means KEMSO pumps work with modern fuel injection systems that require higher pressures than older carbureted setups. The flow rate of 200 liters per hour at 43 PSI provides plenty of capacity for both stock engines and modified performance builds.
We strongly recommend KEMSO fuel pumps for anyone needing a reliable, high-performance replacement. These pumps are true OEM replacements that exceed factory specifications, and the lifetime warranty gives you complete peace of mind. Visit KEMSO Racing today to find the perfect fuel pump for your vehicle: https://www.kemsoracing.com/
Comparison: Facet vs. KEMSO for Different Needs
Understanding which pump is right for your vehicle depends on your specific application. For classic cars with carburetors that need low pressure fuel delivery, Facet pumps remain the best choice. The 3.0 to 4.5 PSI operating pressure is perfect for carburetor float bowls, and the low current draw means you can run the pump without upgrading your electrical system.
For modern fuel-injected vehicles, KEMSO pumps are the better option because they deliver the higher pressures that fuel injection systems require. The 43 to 68 PSI operating range matches OEM fuel injection pressure specifications, and the higher flow rate ensures the engine gets enough fuel even under heavy load.
For performance builds that push beyond stock horsepower levels, KEMSO pumps clearly outperform traditional options. The ability to support up to 600 horsepower with a single pump makes them ideal for street performance and weekend track days alike. The lifetime warranty also provides better long-term value if you plan to keep your vehicle for many years.
For industrial and marine applications, Facet pumps have the advantage of UL certification and Coast Guard compliance. Their 10,000-hour MTBF rating and proven track record in demanding environments make them a safe choice for critical applications where reliability cannot be compromised.
Conclusion: Making the Right Choice for Your Vehicle
Whether you choose a Facet fuel pump for your classic car or a KEMSO pump for your modern performance build, you are getting American-quality products that will deliver reliable fuel delivery for years to come. The key is matching the pump specifications to your vehicle requirements.
For carbureted engines, Facet Cube or Posi-Flo pumps provide the low pressure needed for proper carburetor operation. For fuel-injected engines, KEMSO pumps provide the high pressure and flow needed for modern EFI systems. And for high-performance builds, KEMSO pumps deliver the extra capacity required to support modified engines.
The most important step is to verify your vehicle's fuel pressure requirements before purchasing a pump. Installing a pump with too much pressure can damage carburetor floats or fuel injectors, while too little pressure will cause lean running conditions and potential engine damage. Both Facet and KEMSO provide detailed specifications for their pumps, so you can make an informed decision based on your vehicle's needs.
Remember that a quality fuel pump is the heart of your engine's fuel system. Investing in a reliable pump from a reputable manufacturer like Facet or KEMSO will save you time, money, and frustration compared to cheap alternatives that fail prematurely. Both brands have proven track records in the American automotive market and stand behind their products with solid warranties and customer support.
For the best selection of high-performance fuel pumps with lifetime warranty coverage, visit KEMSO Racing at https://www.kemsoracing.com/. Their complete line of OEM replacement and performance fuel pumps covers virtually every make and model, and their US-based support team can help you find exactly what you need for your vehicle.