The Ultimate Fuel Pumps Buying Guide

A Guide To Buy Fuel Pumps

Whether you have a carburetor or a fuel-injected car, your fuel system definitely needs a fuel pump in order to make your engine work. The fuel pump can be mechanical or electric and have one purpose, to suck fuel from the tank toward the engine. Fuel pump failure is uncommon, especially in modern cars, but when this component fails, your vehicle will sputter and die. Replacing a not working fuel pump can be easy or hard, depending on the type of vehicle you have. You must ensure to do it all the same in order to keep your fuel system working properly. 

What Type Of Fuel Pump Should I Choose?

A fuel pump can be fitted on the engine or in the fuel tank. In classic models, the fuel pump was fitted on the engines and was operated when the engines were started. But due to changes in technology, fuel pumps are electrically operated and are fitted in the fuel tank. A fuel pump pushes fuel from the tank to the vehicle's engine, which powers the car. The fuel pump is a part of a full fuel pump assembly that has other parts like the fuel filter, level arm and sending unit. Depending on the vehicle you have, the fuel pump should be selected.

Based On Construction


1.  Mechanical Fuel Pump

A mechanical fuel pump was widely used in old vehicles. A mechanical fuel pump can either be used for petrol or diesel vehicles. Their construction is totally different from one another but they work mechanically with the help of a cam, gears, belts, or chains and only operate when the engine is turned on.


2. Electric Fuel Pumps

The most common type of fuel pump on today's vehicles is the electric fuel pump. You will find the electric fuel pump fitted right inside or outside the fuel tank, which works with the fuel injectors in the car. The electric fuel pump typically pumps fuel at a higher pressure than the mechanical fuel pump. They immediately start pumping fuel when the ignition switch is turned on and helps to start the engine faster.

Based On Mounting Location


1. “On-Chassis” Fuel Pumps

As the name implies, this type of fuel pump is fitted on the chassis of the vehicle near the fuel tank and is used for petrol-driven vehicles. These pumps are heavy-duty pumps and have higher pressure than any mechanical fuel pump. These electric fuel pumps come in a variety of pressure to choose from. Removing and refitting of this type of pump is easy and does not require any special tools.


2. “In-tank” Fuel Pump 

Modern vehicles do not have fuel pumps fitted on chassis or on the engine, but these fuel pumps are found in the fuel tanks of diesel and petrol vehicles and are known as fuel pump module assembly. Due to changes in technology, electronic fuel injection systems operate at very high fuel pressures. The fuel pump module assemblies consistently supply fuel at pressure as high as 75 psi or more. This fuel pump module assembly includes important components as the electric fuel pump, fuel strainer, and fuel gauge sending unit. The fuel pump has an impeller fitted at the end of the motor shaft that draws in fuel from one end and pushes it out at the other end of the pump towards the engine.


3. “On Engine” Fuel Pumps

These types of fuel pumps are mechanically driven; they can be fitted on the engine block for petrol vehicles that are old and with engines that use a carburetor or can be fitted in the engine for diesel vehicles and are known as direct injection high-pressure fuel pumps. When the engine is cranked, the fuel is sucked from the tank and the fuel is delivered to the engine. All new vehicles do not have this type of fuel pump.

Based On Pressure

1. High pressure

Fuel pumps with high pressure are the best product in the market. These pumps are perfectly balanced and most of them have a polymer-encased armature which reduces maximum noise. This type of technology helps to replace classic types of pumps and gives better drivability and reduces starting problems.

2. Low pressure

Engines with fuel-injected systems are very sensitive to fuel pressure, as well as quantity of fuel. A fuel pump with low pressure can stop working if the fuel filter even gets a little dirty. Low-pressure pumps are fitted on vehicles that have an engine with less power. Low-pressure pumps can be easily changed into high-pressure pumps. Fitting a high-pressure pump can come with some advantages. It can provide a constant pressure of fuel which can give better performance, power, and speed to the vehicle.

Factors I Should Consider Before Buying A New Fuel Pump?

A. OE Vs Aftermarket

The replacement of an OE fuel pump will offer exactly the same advantages as the factory-equipped fuel pump and nothing more. This means you will not receive any additional benefits. These will also cost quite a bit more than aftermarket parts. Whereas aftermarket fuel pumps are generally cheaper and come at a reasonable price while providing many benefits over standard fuel pumps. Aftermarket components match the fit and performance of the OE parts and some even exceed that. Hence making them a bargain over OE counterparts

B. Brand choice

If you are thinking of buying a fuel pump, then this is not the correct time to save money. A trusted name will always help you save in the long run. This guide will help you choose the best fuel pump. In the below section, there are many top brands with their features to choose from which can suit all your needs.

C. Close Attention To Warranties

Pay close attention to warranties for fuel pumps, as they are limited and specific. Replacements are available only if there are any defects. Only a few high-performance fuel pump companies provide a 1-year warranty where the parts will be a bit expensive. So you will have to decide and balance between warranty and price.

Which Popular Brand Fuel Pump Should I Choose?

Holley Fuel Pump

The world-famous Holley fuel pumps are mostly known for their performance pumps. They are small but big on performance. These fuel pumps do not make noise, and the best part is they are easy to install. They can work with petrol, diesel, and blended alcohol. You could buy a Holley fuel pump, either new or remanufactured.

Mechanical Fuel Pump Part Number: 12-327-11, 12-835, 12-360-11, 12-833, 12-454-13 and many more.

Features Mechanical Fuel Pump:

  • Top-grade fuel pump upgrade that will make the driving smooth.
  • Made to maximize the vehicle’s fuel system efficiency.
  • It will help to gain power and a better jump in performance.
  • For superior quality and durability, they are made from premium materials.
  • Produced to be hard and strong as nails to face high-pressure and high-heat conditions.
  • Engineered to give consistent, reliable working, and long-lasting service.

Electrical Fuel Pump Part Number: 12-801-1, 12-802-1, 12-426, 12-815-1, 12-812-1 and many more.

Features Electrical Fuel Pump:

  • Top-grade fuel pump upgrade that will make the driving smooth.
  • Made to maximize the vehicle’s fuel system efficiency.
  • It will help to gain power and a better jump in performance.
  • For superior quality and durability, they are made from premium materials.
  • Produced to be hard and strong as nails to face high-pressure and high-heat conditions.
  • Engineered to give consistent, reliable working, and long-lasting service.

For more, you can visit our Holley Fuel Delivery System Section.

Delphi Fuel Pump

Like all Delphi products, the fuel pumps are designed based on many years of experience. Delphi provides quality replacement parts that give the right fit, shape, and work. Delphi responds to the changing needs of the market by improvising to work on new ideas that can bring a change in the automobile field. Delphi automotive parts meet the needs of all its customers around the globe.

Mechanical Fuel Pump Part Number: MF0048, MF0002, MF0010, MF0063, MF0011, MF0041 and many more.

Features Of Mechanical Fuel Pump: 

  • Increased durability and enhanced stability because of internal springs preventing fuel tube chafing.
  • Better security and sturdiness with many redundant buttons on the fuel level sensor.
  • Improved sturdiness with steel-plated and all-metal internal components.
  • A large volume tank maintains enough fuel in low fuel situations.
  • Longer pump life because of a two-strainer system keeping out contaminates.
  • Lower failure rates because of its innovative style and durability.
  • Reduced chances for greenhouse emissions via the EVAP system due to integrated OE fuel vapor pressure sensor.
  • Guaranteed correct fuel gauge reading.

Electrical Fuel Pump Part Number: FD0039, FE0415, FE0479, FD0037, FD0038, FE0113, and many more.

Features  Of Electrical Fuel Pump: 

  • The product has been tested and can operate even with a low voltage which ensures a vehicle will start even if it has a low battery voltage.
  • Strict OE-testing makes sure the pump can withstand extreme temperatures from -25 to 150F.
  • Designed for unflawed electrical installation with raised terminal size and increased connectors. 
  • Eliminates excessive electrical resistance improves heat dissipation and boosts current flow capacity.
  • Improved tubing styles that minimize noise from the pump.
  • Tested performance in corrosive, contaminated E22, and E95 fuel blends to make sure of long life.
  • Patented generation IV turbine pump, which provides quick fuel pressure rise for quick engine starts.

For more, you can visit our Delphi Fuel Delivery System section.

Bosch Fuel Pump

Many Bosch auto parts such as fuel pumps are greater than OE because they are made to address the needs of the repair. Bosch offers top-of-the-line fuel pump solutions covering all the aspects of different types of vehicles and driving habits and much more.

Electrical Fuel Pump Part Number:  69487, 67000, 69238, 69763, 66090, 69302, and many more.

Features Of Electrical Fuel Pump:

  • Accurate delivery of amount and pressure (original equipment)
  • High level of interference suppression.
  • Silent operation.
  • An optimum amount of fuel delivery under any operating conditions.
  • Maximum operative reliability and maintenance of exhaust standards.
  • Long operative life.
  • High serviceability.
  • Replacement pump made to match previous pump's dimensions and look, ensuring a perfect fit.
  • Virtually eliminates fuel pulsation for a better drive and longer life.
  • Precision, spin-balanced, polymer-encased armature minimizes noise.
  • Aftermarket recognition for premium quality and innovation.

For more, you can visit our  Bosch Fuel Delivery System section.

Denso Fuel Pump

Denso’s fuel pumps are created equal and are guaranteed silent operation, reliability, and efficiency. Many Denso fuel pumps are greater than OE because they are made to address the needs of the repair. DENSO fuel pumps are designed to fit perfectly the first time.

Electrical Fuel Pump Part Number: 950-0107, 950-0226, 950-3030, 950-0113, 951-0008, 950-0231 and many more.

Features Of Electrical Fuel Pump:

  • The armature in a Denso fuel pump is perfectly balanced at 3,000 and 8,000 rpm to reduce vibration and noise.
  • DENSO confirms every component to give the quietest operation possible. 
  • DENSO’s open-vane impeller works harder than competitors’ closed-vane impellers. 
  • DENSO's proven turbine fuel pump technology
  • External compression springs minimize the chances of chafing the reservoir
  • Tests have proven a Denso fuel pump gives the same flow performance and half the energy use 
  • Perfectly checks the pressure for better performance.
  • Pumps contain all new parts, not re-manufactured 
  • Functions at higher speeds and uses less current than older style pumps.

For more, you can visit our Denso Fuel Delivery System section.

Airtex Fuel Pump

Airtex is the automotive industry with over 80 years of aftermarket and OEM experience in the fuel delivery product category. There are millions of vehicles like cars, trucks, fleets, and specialty vehicles that are fitted with Airtex fuel pumps. Its fuel delivery systems meet original equipment style specifications. Besides mechanical and electric fuel pumps, Airtex also provides a wide range of fuel pump accessories.

Mechanical Fuel Pump Part Number: 60278, 6962, 60007, 60514, 40506, and many more.

Features Of Mechanical Fuel Pump:

  • Precision-cast units are designed to satisfy OEM specifications.
  • Special heat-treated rocker arms and case-hardened pins make sure long-lasting performance.
  • Best seals and pump diaphragms for compatibility with the latest multi-fuel blends.
  • 100 percent checked throughout the whole producing process for worry-free performance.

Electrical Fuel Pump Part Number: E3265, E3240, E2471, E3210, E3270, E3290, and many more.

Features Of Electrical Fuel Pump:

  • Airtex electric fuel pumps are 100% quality tested.
  • They are designed to deliver quiet operation and are leading in performance and durability.
  • Every Airtex pump meets or exceeds OE specifications in fit, form, and work. 
  • Every single pump is 100% checked throughout the complete manufacturing process for worry-free, out-of-the-box performance.

For more, you can visit our  Airtex Fuel Delivery System section.

How Long Does the Fuel Pump Last?

Fuel pumps are maintenance-free components and only need to be changed when they stop working. There are some fuel pumps that last above 100,000 miles. To keep the fuel pump lubricated and for cooling the electric pumps, use the fuel. This helps in maintaining its function and prolongs its lifespan. Continually driving with low fuel will starve the fuel pump for lubrication and cooling. If care is taken properly, the vehicle’s fuel pump will last the complete duration of the car. To make this happen, never let the car’s fuel levels fall down. Always fill up the fuel in the tank.

What Are the Symptoms Of Worn Out Fuel Pump?

The biggest problem with a defective fuel pump is an irregular supply of fuel to the engine. The vehicle may begin to lose power, will give a jerk while in motion, or simply won’t start when a fuel pump is bad. If a fuel pump creates a problem, the user can either replace the faulty fuel pump on their own or take it to a garage. The fuel pump is responsible for supplying the engine with the fuel needed for it to run, any problem with it can cause major performance issues. A failing fuel pump will give one or more of the following symptoms that can alert the driver.

Whining Noise From The Fuel Tank

One of the problems with the fuel pump is a loud whining noise. A worn fuel pump will produce a loud whine or howl while running. Many fuel pumps will provide a quiet humming noise during their normal operation. However, a loud whining sound coming from the fuel tank is usually a sign of a problem. 

Difficulty Starting


Another symptom ordinarily related to a problematic fuel pump is the problem while starting. As a result of fuel pumps continuously running whenever the ignition switch is turned on, they will eventually wear out and weaken over time. A weak fuel pump will pump fuel, however, the vehicle might find problems ranging from the shortage of fuel pressure. A weakened fuel pump will cause the vehicle to require additional cranks to start the engine than normal, and in additional serious cases might even cause the vehicle to need multiple turns of the key before it will start.

Engine Sputtering

One of the possible indicators of a defective fuel pump could be a sputtering engine generally at high speeds. If you have to be driving at a systematically high speed and the engine suddenly sputters before returning to regular operation, it should indicate problems with the fuel pump. During this case, the fuel pump cannot offer a continuing stream of fuel to the engine at the perfect pressure.

Stalling At High Temperature


Stalling will happen due to multiple issues at intervals vehicles however pay attention when it happens frequently at high temperatures shown on the car’s coolant temperature gauge. A rising temperature with stalling indicates a fuel pump problem. If stalling still occurs with a high-temperature gauge, it may indicate the fuel pump’s deterioration and time for a replacement.

Loss of Power Under Stress


Another indication of a nasty fuel pump could be a loss of power once the vehicle is under stress, like driving uphill or carrying a significant load or whereas fast driving. The engine shuts down as a result of weakening components of the fuel pump and cannot sustain the car’s high fuel demands in these conditions. In these conditions, the vehicle will feel like it is unable to go or maintain the supposed quantity of power. If the fuel pump is the cause, it means that it will not regulate fuel pressure accurately and supply a suitable quantity of fuel to the engine.

Car Surging

Vehicle surging might be caused due to irregular resistance within the fuel pump motor and is a sign of fuel pump repair. Surging seems like the accelerator pedal has been used. However, it happens at a random, consistent speed. If this happens every time, it should be due to issues with the fuel pump.

Low mileage


If it looks like you are filling up your vehicle quite usually, it should be due to a problem with the fuel pump. A defective valve in the fuel pump might not be opening, causing additional fuel than necessary to pour into the engine system. Excess fuel within the engine doesn't get used or stored.

Car Will Not Start


Another additional serious symptom of difficulty with the fuel pump could be the engine not starting. If the fuel pump fails fully to the point of not having the ability to produce enough fuel for the engine to run, the vehicle will not start. The engine can still crank once the key is turned, however, it'll be unable to start because of the shortage of fuel.

Loss of current or low voltage


Electrical pumps cannot run without the supply of electricity, therefore if something prevents voltage from reaching the fuel pump, the fuel pump can stop functioning. Check the wiring to visualize if it's loose, broken, or damaged.



Dirt within the tank will build up and clog the fuel filter and even accelerate wear and tear, or cause the pump's check valve to remain open. This will result in starting troubles because of loss of pressure.  Make certain to check your fuel tank and keep it totally clean so as to avoid failure. 



Corrosion within the metal tank can create rust that may come off and clog up the strainer.  Rust equally has damaging effects as dirt. Rust forms in tanks because of condensation during different weather once your fuel tank is low with fuel. Keep your fuel tank full so as to reduce the formation of condensation that makes rust.

How Much Does It Cost For A New Fuel Pump?

Once you have completed the inspections and are sure that you need to replace your fuel pump, it is time to replace the fuel pump as per the manufacturer's recommendation. You have an option to choose from a different brand or the same brand if it suits your budget. Prices ranges are different and also vary from one brand to the other. Depending on the vehicle you drive, the fuel pump will cost you around $70 to $300. While the labor cost is only about $40 to $100. If you have the proper tools and knowledge, you can change the fuel pump yourself and save a lot of labor.

How Do I Keep The Fuel Pump Running Properly?

The fuel pump assembly maintenance is simple that can give your fuel pump the best chance for extended life. The best way to take care of your fuel pump assembly is by keeping your fuel tank level properly maintained. It sounds easy, but many people run their cars with the fuel warning light on. This kind of driving gives unnecessary stress and strain on the fuel pump. Whenever the fuel level in the tank goes too low, the force required to draw fuel out of the tank increases. If you drive every time in this style, the fuel pump will wear out quickly. To save the fuel pump, always keep at least a half tank of fuel in the car. If you don't use a tank of fuel in a month, add a fuel cleaner into the fuel tank. Never fill fuel at gas stations that are getting refilled from tanker trucks because there is more dirt during these refueling times.

Holley Fuel Injectors - Part Number Catalog


Part Numbers

Mechanical Fuel Pump

12-289-13, 12-460-11, 12-390-11, 12-327-25

Electrical Fuel Pump

712-801-1, 12-150, 712-815-1, 12-125, 712-327-11, 12-600, 712-802-1

Fuel Pump Module Assembly

12-345, 12-313, 12-316

Delphi Fuel Pump - Part Number Catalog


Part Numbers

Mechanical Fuel Pump

MF0076, MF0005, MF0020, MF0092, MF0062, MF0003, MF0049, MF0051, MF0030, MF0064, MF0023, MF0013

Electrical Fuel Pump

FD0031, FE0441, FE0420, FD0029, FE0402, FE0443, FE0442, FE0539, FE0216FE0127FE0070, FE0023 

Fuel Pump Module Assembly

FG0111, FG1272, FG0411, FG0435, FG0375, FG0162, FG0052, FG0340, FG0279, FG0474, FG0127, FG0053

Bosch Fuel Pump - Part Number Catalog


Part Numbers

Fuel Pump Module Assembly

67475, 67429, 69348, 67974, 69740, 66072, 66078, 67072, 66076, 66074, 67226, 67681

Electrical Fuel Pump

69407, 69418, 69228, 69430, 69117, 69414, 69237, 69132, 67923, 67873, 66149, 69131 

Denso Fuel Pump - Part Number Catalog


Part Numbers

Fuel Pump Module Assembly

953-3041, 953-3061, 953-3035, 953-3056, 953-3057, 953-3058, 953-3053, 953-3060, 953-3049, 953-3032953-3038953-3052

Electrical Fuel Pump

950-0118, 950-0166, 950-3028, 950-0206, 950-0123, 950-0114, 950-0194, 950-0132, 950-0171, 951-0001, 951-0003, 951-0004

Airtex Fuel Pump - Part Number Catalog


Part Numbers

Fuel Pump Module Assembly

E3992M, E3507M, E3500M, E3952M, E7186M, E7273M, E3549M, E3942M, E2613M, E7094M, E3972M

Electrical Fuel Pump

E2059MN, E2236, E2254, E84070N, E8229, E2487


Articles and Guides that are written with the help of mechanics to ensure you have all the knowledge you need to make the correct purchase here at PartsAvatar.

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You should always wear gloves to protect your hands and always wait for the vehicle to cool down before replacing the pump.

A new fuel pump improves the car’s fuel efficiency and better control over your steering. You will also have a much smoother and safer ride.

Replacing a fuel pump can be a tough job in some vehicles, but with a little experience and knowledge, it can be done to save serious money. For fuel pump replacement work, mechanics charge a huge amount. If you have the knowledge, then the job can be done at home.

The fuel tank cleaning doesn't cost too much, it is around $80 and $100. Auto mechanics perform this type of work if the fuel filter is badly choked up, and it doesn't take more than a couple of hours to complete the job.

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Mike Morrales
Automotive Product Expert
A super dork when it comes to new automotive tech. Part manufacturers are constantly making revolutionary product updates for their aftermarket line up. However, knowing what changes were made and how they could affect your day to day driving adventures is something our automotive product expert will definitely be chiming in on, stay tuned !.