The Complete Guide For Best Inline Fuel Pump Of 2024

Sara Ryan By, Sara Ryan
Updated
Walbro GSL392-400-939 Inline Fuel Pump 255LPH HIGH PRESSURE
Image credit: Amazon.com

Our Top Picks

1. Best Overall: Walbro GSL392-400-939 Inline Fuel Pump 255LPH HIGH PRESSURE

Walbro's GSL Series Inline Fuel Pumps are designed to be used in turbo and supercharged applications. These high pressure fuel pumps are capable of delivering up to 255LPH and with an all metal shell, they provide years of reliable performance. Read Review

2. Runner Up: AEM 50-1005 Inline High Flow Fuel Pump (400lph)

Experience the power of a 400lph inline fuel pump with AEM. The AEM 50-1005 Inline High Flow Fuel Pump is designed for use with gasoline; Alcohol fuels can be used, but pump life will be diminished. Designed for high output naturally aspirated and forced induction EFI vehicles. Read Review

4. Best Compatible: Megaflint Inline Fuel Pump 12V Universal Electric Fuel Pump

A super easy way to add fuel, Megaflint Inline Fuel Pump 12V is an electric fuel pump that fits all 12 volt cars and trucks. This high quality pump with built-in German-made copper coil is self priming and has a unique design that fits many carburetor equipped cars, trucks and boats. Read Review

For some reason, people are afraid of their car’s fuel pump. They think it will suck out their lifeblood, or be some kind of ticking time bomb that will explode at the slightest provocation. These fears are unfounded and should be ignored. If your car has an inline fuel pump, then you probably don’t know about it. These pumps aren’t anything to get scared about. They just run quietly in the background, and you wouldn’t even know they were there if they didn’t have a problem with your car.

The biggest disadvantage of an inline fuel pump is that you have to remove it in order to change the fuel filter or any other part of your gas tank assembly. If you plan on replacing any parts in the future, this can be a deal breaker for you as well as for others who may drive your car. An inline fuel pump also doesn’t allow for as much flexibility when it comes to adding accessories or modifications to your vehicle. But all things considered, these are minor drawbacks when you consider all the benefits that come with an inline fuel pump.

Our team, including qualified experts in this area, conducted a survey and carried out it for a great amount of time on finding the right products for best inline fuel pump, nearly 16 hours. And after lots of effort, we have done it well. 

As the result, we found some top trending models on the market that many customers tend to search for. In addition, we believe that the Walbro GSL392-400-939 Inline Fuel Pump 255LPH HIGH PRESSURE is one of the best options available to you. We have provided you with a detailed buyer's guide and many other good choices so that you can decide which one is the best for your requirements.

Our Top Picks

  • OE-proven second generation
  • 10mm x 1mm threaded inlet and outlet accept a variety of fittings
  • QS9000 certified
  • Variety of pressures and flows available, including high pressure performance
  • All metal shell including inlet and outlet
  • Fits most EFI applications including turbo and supercharged
  • Popular "044 Style" physical configuration but with AN inlet & discharge port connections
  • The AEM 400lph High Flow Fuel Pump is designed for use with gasoline; Alcohol fuels can be used, but pump life will be diminished; The inlet thread is a -10 AN female ORB (O-ring port fitting) and the discharge is a female -6 AN ORB (O-ring port fitting)
TOP Choice #3 Inline Fuel Pump 255LPH HIGH PRESSURE Replaces GSL392-400-939
Our Score:
9.6
A ABIGAIL
  • 【Warranty】This fuel pump comes with 30 Days HASSLE-FREE RETURN & 1 Year / 12 months unlimited replacement promise. If you don't like it, just return it and get a full refund. If it doesn’t work well and just contact us, we’ll offer you a replacement directly. Our aim is to make you satisfy the parts and the service we provide for you.
  • 【Upgrade pump 】255LPH High Pressure Inline Fuel Pump are extremely popular upgrades to vehicles with engine and performance modifications, supporting up to 650 horse power.
  • 【Application】This GSL392 fuel pump is used in vehicles for racing or performance purposes where higher pressure fuel is necessary. Turbocharged, Supercharged.
  • 【High Qulity】All metal shell including inlet and outlet. Variety of pressures and flows available, including high pressure performance.
  • 【Technical Data】Pressure: 255 (LPH) Liters Per Hour; AMP: 20; 10mm x 1mm threaded inlet and outlet accept a variety of fittings. OE-proven second generation.Include two standard universal fittings which can connect to any 5/16 inch hose.
  • 100% mechanically tested prior, ensures optimal performance and enhanced durability. Highest 12 inches fuel suction
  • Output Pressure : 5 - 9 PSI; Input Voltage: 12V; Output : 30 GPH. Fuse specification: 12 Amps; Crossreference : E8012S, EP12S, FD0002, P60430, 6414671
5 Walbro GSL392 Fuel Pump
Our Score:
9.2
Walbro
  • 255 LPH / In Line
  • Honda Prelude (85-87). Fits most EFI applications including turbo and supercharged
  • Made by TI Automotive (Owner of Walbro Brand). All newly made Walbro pumps have the TI Automotive brand stamp, not Walbro).
  • Fuel Pump Only
6 Inline Fuel Pump 255LPH HIGH PRESSURE
Our Score:
9.1
A ABIGAIL
  • 【Upgrade pump 】255LPH High Pressure Inline Fuel Pump are extremely popular upgrades to vehicles with engine and performance modifications, supporting up to 650 horse power.
  • 【Application】This GSL392 fuel pump is used in vehicles for racing or performance purposes where higher pressure fuel is necessary. Turbocharged, Supercharged.
  • 4 - 6 psi output, 72 gph free flow
  • 12 volt
8 DWVO Fuel Pump Compatible
Our Score:
8.8
DWVO
  • DWVO fuel pump is designed as a replacement for your worn-out fuel system part, will help optimize your vehicle’s performance and fuel efficiency
  • Adopting injection molding technology to upgrade plastic parts of electric fuel pump, greatly improve the efficiency and stability of fuel delivery.
  • Please double check your vehicle info and refer to detailed vehicle fitment on product description page below.
  • Easy assembly: Only takes a few minutes to install the sealing ring and swing arm to complete; the provided online installation manual and user manual make your installation a breeze. NOTE: Professional installation would be highly recommended
  • Using an enhanced fourth-generation turbo pump as motor to provide proper power and fuel pressure, which will accelerate fuel atomizing and shorten engine start-up time
  • 【Data support and after-sales service】: Ten minutes/10 gallons, operating voltage 9-16 volts, operating pressure 0-125 PSI. we offer a full refund service within one year after the sale and a 2-year warranty!
  • 【Quality embodiment】:Simulated loading experiments to check the air tightness, professional tester testing to exclude jitter and noise, precision instrument testing to ensure the pressure and flow, multi-channel manual inspection of product appearance.Ensure 100% satisfaction with the customer shopping experience degree.
  • 【Product Compatibility】: Universal Replacement E2000.This fuel pump is suitable for 83-96 F150 F250 F350 E150 E250 E350 Mustang Ranger LTD Thunderbird, Mercury Marquis, Lincoln Continental
  • 【Product features】:External fuel pump sturdy structure, stable performance, 16.4 feet super suction power. Easy installation, widely used for transferring fuel on gasoline vehicles and modified vehicles!
  • 【Our product detail】; 1piece 12V electric fuel pump,1piece internal fuel filter (already fitted),1piece Car wash towel,2pcs rubber connection covers,2pcs insulated terminals,2pcs spring washers,2pcs nuts
  • Interchange Part Number: 0580453911, 0580463017, 0580464023, 0580463010, 0580464008, 0580464032, 0580463011, 0580464013, 0580464033, 0580463012, 0580464014, 0580464038, 0580463013, 0580464015, 0580464048, 0580463014, 0580464016, 0580464050, 0580463015, 0580464019, 0580464051, 0580463016, 0580464020, 0580464055, 0580464056, 0580464070, 0580810046
  • External Fuel Pump is made of high-density brass and steel alloy, with high hardness, not easy to wear, not easy to corrode, and has a long service life
  • Package Include: 1 x External Fuel Pump, 2 x Rubber Connection Cover, 2 x Terminal, 1 x Large Gasket, 1 x Small Gasket, 1 x Large Nut, 1 x Small Nut
  • Technical Data: Inlet - ½” (12mm) push on; Outlet – ¼” (8mm) push on; Flow rate - 135ltr/hr @ 3bar (35 gal/hr @ 45 psi); Max pressure - 8.5bar (125 psi)
  • Universal external in line fuel pump. Does not need to be mounted inside the tank; Use this pump for turbo/non turbo gas fuel injection systems up to 250bhp
  • Support high power application: 300-800 H,Comes with a 1-3/4'' | 45mm gauge & 1/8'' NPT gauge port, adjustable from 0 to 100 psi to maximum fuel pump capacity
  • This Inline High Pressure Fuel Pump is adopts the anodized surface process, which is not easy to fade and has rust proof, scratch proof and waterproof. The smooth surface is coated with black paint, which is a practical, exquisite and beautiful accessory
  • This is a universal fit pump and depending on your application some adapting will be required, Installation may require skill and knowledge, no instructions are included

What to Look For in a best inline fuel pump?

Different considerations must be taken during the shopping process. Study resources are obtained in a wide variety of ways. Thus, our staff is all here to lend a helping hand, advice, and solutions to your issues.

Please take a closer examination of the features below and that would be beneficial before your purchase of best inline fuel pump: 

Installation

Another thing you should consider when purchasing a fuel pump is how to install it. Different products may have different installation procedures or lengths.
You might not like the idea of spending hours fixing your fuel pump if you're not a big fan of machines. This is why it's important to remember this when you make a purchase.

Horsepower

How much fuel is needed to power your engine will depend on how powerful it is. The fuel that is required to sustain this power increases with horsepower.
Volume to power can be estimated at approximately 10. hp/gallon, or 2.64 horsepower per liter. If your pump is capable of supporting a 600 horsepower engine at 60 gph, it will be. To determine the engine's gph, you need to consider its fuel pressure.

Voltage

Different voltages can cause different fuel pumps to have different flow rates. The flow rate will rise at all pressures as the voltage goes up.
When shopping for the right fuel pump for your car, it is important to verify that it is rating at a particular voltage. When running, most cars produce around 13.5 volts.

Materials Used/ Durability

Although you may not require a high-performance fuel pump to power your vehicle's engine, it is important that the fuel pump lasts. Durable fuel pumps will last longer and save you time and money.
Material that claims to be "OE standard" will have a greater lifespan.
Another indicator of the fuel pump's durability and quality is its warranty. You can generally expect that a fuel pump's warranty will be longer than its actual length. This is because the manufacturer is more certain about its product quality. Many products offer repair and replacement warranties that can be extended for an additional period.

Fuel Pump Locations

The location of the fuel pump installation can affect the choice of the fuel pump. The majority of mechanical pumps can be mounted outside the tank. You can mount electrical fuel pumps both inside and outside the tank.

Compatibility

It is a crucial step that I cannot stress enough. It is essential because it is the first step. You must never mess this up. It is possible to verify compatibility of your machine or vehicle with your fuel pump online.
If you're going to a shop, be sure you ask about the store. You'll lose your chance at making a smooth purchase.

Fuel Type

Most pumps can work with different fuel types, but some aren't. It is important to verify that the pump you're looking at works with your particular fuel type.

Purpose

Some people purchase a fuel pump to power heavy machinery, while others buy it daily for their commute. Even if the fuel pump is the most powerful, it's not necessary to buy one. This would be excessive and will most likely cost more.

Reliability

When in operation, fuel pumps act as the heart of machinery. It is important that you can trust the product you use. To determine reliability, you can take into account factors like fuel pressure. Your vehicle shouldn't stop halfway.

Safety

Safety is something you should never ignore or dismiss. To avoid any unnecessary inconvenience, ensure that your fuel pump works safely.

Fuel Pressure

Handling fuel is also important. At different pressures, fuel pressure can be rated as a gallon/hour or a liter/hour.
Different engines require different fuel pressure.
Because fuel pressure can have a significant impact on the flow of a pump, it is essential to determine what pressure your engine requires. Fuel pumps will only flow to their maximum volume when there's no pressure or flow. Fuel flow drops as fuel pressure rises.
Each pump will have a unique flow rate for a particular pressure. It is therefore important that you look at the flow chart for any pump before purchasing.
A second point is that fuel types can produce different fuel pressures. Some fuel pumps are limited to a particular type of fuel. They can still work with other fuel types, but they will quickly deteriorate. The fuel pump's durability will be affected if it is used with an incompatible fuel type.
Side note:
Different types of filters or accessories can be used to improve performance depending on the fuel pressure. The fuel pressure also affects the location of the electric pumps.

FAQs

What Are Some Safe Ways To Replace A Fuel Pump?

Keep enough fuel in your tank to allow the pump to take up gas. To protect your hands, you should wear gloves and wait until your car cools down before changing the pump.

Why Are The Right Materials Essential?

Materials play a major role in the durability and life expectancy of the pump. For a longer life expectancy and strength, carbon brushes are used. To achieve the best performance, most brands will use OS standard equipment.

Is Flow Rate A Very Important Factor?

Yes. Your pump's efficiency is determined by the flow rate. This is an important factor to consider when making a purchase.

How Long Is The Installation Process?

The average fuel pump installation time is 30 minutes. Professional help is highly recommended for better performance and safety.

If you're a person who is comfortable with doing some manual labor, then you can install the unit yourself. You can find many resources online that will help you.

How Will A New Fuel Pump Benefit Your Car?

The new fuel pump will improve your vehicle's fuel economy and give you better control of your steering. A smoother, safer ride will be yours.

Can You Use An Electric Fuel Pump With A Carburetor?

Absolutely. Most electric pumps can be used with carbureted applications. It is enough to confirm that the pump works with a carburetor and to match fuel flow to its requirements.

Do All Pumps Work With All Fuel Types?

They do not. Some fuel pumps are only compatible with one type of fuel. When looking for the right fuel pump for you vehicle, make sure that you read the specs.

Is An Electric Fuel Pump Better Than A Mechanical Pump?

A few problems can be solved by an electric pump that a motor-driven pump cannot. An electric pump is also necessary in many cases. A mechanical pump, however, can provide more fuel flow and greater reliability than an electric pump of the same price.

Is It Possible For A Pump To Have A Cold Start?

It is possible for the pump to be started cold. The resistance of the pump at lower temperatures will be higher. It will therefore have problems starting at lower temperatures.

Is It Possible For A Fuel Pump To Produce Enough Pressure In Faulty Conditions?

A pump can still produce sufficient pressure even under adverse conditions. It has some similarity with the battery. A defective battery may produce too much current but insufficient voltage to sustain it.
The pump can't make enough flow but pressure is maintained. For fuel pumps, it is important to measure the fuel volume for optimal conditions.

Where Is The Best Place To Mount An Electric Fuel Pump?

Mounting an inline pump close to the fuel tank is essential. These pumps are designed to pump fuel. It is important to reduce as much distance as possible to fuel supplies while still allowing gravity to assist in pump delivery.

How Can You Take Care Of A Fuel Pump?

You can ensure that your car's fuel pump lasts for the whole life of it if you take good care of it. You should never allow your vehicle's fuel level to drop below 25%. The pump can be subject to thermal shock if it is full.

When the latest info related to best inline fuel pump comes available, we will update it as soon as possible. Please check our websites frequently for the most up-to-date research data.

Our team is able to support you with many problems, even the out of best inline fuel pump. If you require support with your issues, please do not hesitate to contact us.


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About Sara Ryan

Sara Ryan

Sara Ryan is a freelance writer for CampFireHQ and avid diver. She first discovered her love for diving while on vacation in the Caribbean and has been hooked ever since. Sara loves exploring new dive sites and observing the fascinating creatures that live beneath the waves. As a native of Colorado, Sara enjoys spending her free time hiking and camping in the beautiful Rocky Mountains. She also enjoys writing about her adventures in diving and wildlife conservation.

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