Best Injectors For 24V Cummins – 2021 Buyer’s Guide

| Last Updated: December 25, 2021

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Are you finding trouble with a faulty fuel injector? Well, it’s time to replace your old 24v Cummins injectors.

Getting a new fuel injector won’t only increase the HP but also eliminates tons of issues that result from an old injector. To simplify your hunt, we have summarized the top recommendations to help you choose the best one for you. They are all known for their quality and flawless functionality.

Check them out!

Comparison Chart of the Best Injectors For 24v Cummins

  • No core needed
  • High performance is promised
  • Made for closed-course racing use
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  • Offers crisp spray pattern for cleaner burn
  • Extrude hone finished according to Engineered Diesel's specifications
  • 1-year unlimited mileage warranty
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  • Best for the Money
  • Made to be premium quality components
  • Manufactured and tested to the strictest OE standards
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  • Best 100 HP Injectors for 24v Cummins
  • Fits 2004.5-07 325HP Cummins Engine
  • 7-hole 124 deg spray angle
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  • For 98.5-02 24V Dodge Cummins 5.9L
  • Made to be durable
  • Offers notable quality
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How Do Injectors Work, and What Do They Do?

A fuel injector is specially designed to spray the atomized fuel into a combustion chamber of the engine. The fuel is pressurized and then supplied to the fuel injector by means of the fuel pump. This is followed by the distribution of fuel to each injector via the fuel rail.

A nozzle is then used to disperse highly-pressurized fuel into an atomized spray. This phenomenon helps in efficiently mix the fuel with air. This mixture being highly-combustible is ignited by the spark plug to explode the mixture. The same process is repeated again and again in the cylinder to allow the smooth running of the engine.

What Size Injectors Do I Need on my Cummins?

Upgrading your vehicle by incorporation of high-end accessories would surely bring you benefits in the long run. Size is an important factor to consider while getting a new fuel injector for your 24v Cummins. The rule is simple, too small or too large is bad.

The determination of size for your application can be done by accessing the horsepower first. Generally, it is recommended to stick to 100hp to 150hp. Moreover, the safe duty cycle, which is the percent of the time that the fuel injector is open versus the total time between firing events, can also help you find the right injector.

How to Choose an Injector For 24v Cummins

High-end technology has made almost all vehicles on the road fuel injected. Multiple manufacturers produce top-notch models to add power to your vehicle. However, this plethora of options might confuse you in getting the right product for you. Well, we are here to help you.

Listed below are a couple of features that combine to give you quality injector for your 24v Cummins. Let’s discuss them one by one!

Durable Construction

A high-quality fuel injector tends to last long. You must look for a model that is established from high-quality materials to offer durable performance. Moreover, it is recommended to pick a model from a reputed brand as they have a proven history of providing reliable products.

DieselTuff Performance Injector Set 


What better than getting a fantastic warranty with a good product? Manufacturers offer certain warranties on the injector to save you from frequent expenditures. Go for a model that is backed by a reliable warranty to ensure ultimate performance.


While injectors can be expensive, you can still find a quality product with essential features within a reasonable range. Just dig down and make sure to prioritize quality over price to bring value to your money.


An efficient fuel injector is fully compatible with the vehicle and gives immense power to the engine. Make sure to opt for a model with perfect size and functionality.  

Review of the Best Injectors For 24v Cummins

So those were all the major characteristics that contribute to making the right product for you. Moving forward, we have designed a detailed review of some high-end injectors that work flawlessly with 24v Cummins.

Let’s get started!

Best Overall:
DieselTuff Performance Injector Set


  • Comes from a reputed brand
  • A nice design that is user-friendly as well
  • Suitable for running the engine efficiently
  • Incorporates copper O-rings for ultimate performance
  • Manufactured from quality materials to ensure durability


  • Installation can be a bit tricky

What Recent Buyers Report

Users have found this product extremely useful for increasing the efficiency of the engine. They report that the construction is quite reliable and high-end, plus the user-friendly design adds on to perfection. Moreover, you won’t need any core with this injector, and this model is perfectly compatible with the 24v Cummins.

Why it Stands Out to Us

This amazing injector from DieselTuff mainly stands out to us for its flawless construction. It is made from quality materials plus exhibits an attractive design to ensure improved performance. You can easily use this injector in a range of Cummins engines to allow top-notch performance whenever you want.

Who Will Use This Most

It is undoubtedly recommended as an ideal choice for those who want to improve the performance of their vehicle’s performance. This injector works perfectly with the 24v Cummins. Plus, it is also suitable for other Cummins engines as well, including 98.5-2 Cummins to enhance its efficiency to a great extent.

Bottom Line

An extraordinary model with a range of exceptional features, this injector incorporates top-notch construction that is well-complemented by nice design. Moreover, it has copper O-rings to deliver ultimate performance to the user. Lastly, it is compatible with a number of Cummins engines to mark reliability.

Engineered Diesel EDCB9802I7X16S


  • Offers an impressive spray pattern
  • Attractive design with great features
  • Fine construction to make it last long
  • Comes with a fantastic 1-year warranty
  • Nicely improve the functioning of your engine


  • A fuel additive is required

What Recent Buyers Report

This product has earned great ratings from its customers. They report that the quality is just amazing, plus the design is user-friendly as well. Talking about the performance, this injector works superbly with the Cummins engine and gives you high-end performance in the hour of need. Lastly, you get to enjoy a 1-year warranty as well.

Why it Stands Out to Us

Another great injector on the list, this model from Engineered Diesel is composed of heavy-duty materials to give you long-lasting service. Similarly, the design is attractive, plus it is meant to spray the fuel evenly in the engine to keep your vehicle running. Moreover, manufacturers offer a great warranty of 1-year on this product to enhance the confidence of the customer.

Who Will Use This Most

It is surely a great choice to enhance the performance of your vehicle. This model works great with 24v Cummins. The crisper spray pattern ensures a cleaner burn to improve your experience. In short, with this injector, your vehicle's engine is meant to run efficiently and smoothly without any issue.

Bottom Line

A powerhouse of features, this injector is well-known for its durable construction. It embodies a good-looking design that makes it user-friendly as well. This injector is totally compatible with the 24v Cummins. Moreover, the 1-year warranty saves the user from the hefty expenditures of frequent maintenance and replacement.

Best for the Money:
Diesel Fuel Injector Set by BuyAutoParts


  • Shiny and good-looking design
  • Known for its unparalleled performance
  • Comes with a nice 1-year warranty to mark perfection
  • Surely one of the most economical injectors out there
  • Manufactured from heavy-duty material to enhance longevity


  • Some minor concerns over quality
  • Shipping service is not as great as advertised

What Recent Buyers Report

This injector is popular among the customers for its affordable price tag. Users report that the construction is highly reliable, plus the design is equally amazing. It works great with the Cummins and gives ultimate performance to the user. Moreover, there is a 1-year warranty to cover all technical faults.

Why it Stands Out to Us

A remarkable model from BuyAutoParts, this injector stands out from its rivals for its reasonable price. Not only is the construction durable, but the design is very attractive as well. Similarly, it ensures an even distribution of fuel in the engine to improve your vehicle’s performance. Moreover, it is backed by an impressive 1-year warranty.

Who Will Use This Most

Available at an affordable price, this injector is considered as the perfect option for those who are on a tight budget and can’t afford to spend on relatively expensive models. It can be employed to improve the functionality of 24v Cummins. Moreover, the user-friendly design makes the installation just a breeze.

Bottom Line

In case you are in search of a reliable injector to go with your vehicle’s engine, then look no further. This model has a nice construction plus a user-friendly design. It works amazingly to ensure a smooth and silent operation. In short, it has everything you are looking for.

Best 100 HP Injectors for 24v Cummins:
DieselTuff Performance Nozzle Set


  • Installation does not take longer
  • Does not need any core incorporation
  • Composed of flawless materials to ensure durability
  • Impressive spray angle to deliver ultimate performance
  • One of the best 100hp injectors you’ll find on the market


  • Customer service must be improved

What Recent Buyers Report

Users are very happy and satisfied with the performance of this injector. They report that the material used in the construction is appreciable. Moreover, the user-friendly design helps in easy installation of this model. Moreover, the injector perfectly fits the 24v Cummins and guarantees a powerful performance to the customers.

Why it Stands Out to Us

One of its kinds, this injector is ideally recognized for its top-notch construction. The composition is coupled with an attractive design to give you maximum performance. The beautiful nozzle design is meant to spray the fuel evenly to give you a smooth running. In short, this injector is totally reliable and versatile.

Who Will Use This Most

It is an ideal option for those who intend to upgrade their vehicle's performance. This is a user-friendly model and does not require a significant amount of time from beginners. It works efficiently with the 24v Cummins and tends to give a flawless performance with the 55hp to 100hp. What else could you ask for?

Bottom Line

This injector is incorporated with tons of features, including reliable construction, attractive design, and amazing performance. It is compatible with a range of 24v Cummins and ensures an exceptional performance whenever you use it. With this injector, the engine runs seamlessly, thanks to the incredible spray angle.

Editor's Pick:
labwork Performance Diesel Fuel Injector


  • Known for its ideal performance
  • Package includes a complete set of 6
  • A jet black finish gives it an appealing appearance
  • Comes with the O-rings for improved functionality
  • Nicely constructed to serve the user in the long run


  • Installation might take longer
  • You might need to call for professional help

What Recent Buyers Report

Similar to some other popular injectors, this model has succeeded in winning the confidence of many customers on the market. Users report that its most striking quality is its attractive black design. Moreover, it gives you a cleaner and smooth-running vehicle, thanks to the quality features.

Why it Stands Out to Us

One of the finest injectors, this model incorporates amazing composition to deliver the ultimate performance whenever you want. It is constructed very well, plus it comes with a black appearance to add on to perfection. Moreover, it works efficiently with the Cummins engine and tends to last in the long run.

Who Will Use This Most

The top-notch functionality of this injector makes it ideally suited for 24v Cummins. You can employ this injector in your vehicle to enjoy a smooth running experience. It amazingly enhances the power of your vehicle to a great extent without consuming much fuel. Overall, this model is worth the investment.

Bottom Line

If you need an ultimate injector for maximum power gain, you should definitely get your hands on this model. Whether we talk about the durable construction or the good-looking design, this injector won’t do you wrong. You won’t find a better deal out there.

Cautious Considerations to Keep in Mind

Injectors are arguably the most efficient and easiest way to add power to the vehicle. There are tons of options currently available on the market. The ultimate choice depends on your requirements. However, there are a few considerations that must not be overlooked in order to avoid any regret in the future.


Fuel injectors come in a range of prices. Most of them can be really heavy on your pocket. Any model from a reputed brand will surely cost you much. However, a reliable product is always worth the investment. A wise pick is meant to bring a bang for your bucks.


A fuel injector might become clogged due to several reasons. Similarly, you might encounter some leakage issues. A bad and dirty injector can ultimately lead to several problems in your vehicle. There might be too much consumption of fuel, or it can alter the performance of the engine as well.

Therefore, you must take your vehicle to the workstation for maintenance in order to enjoy a seamless driving experience.


Depending on your vehicle, the injector installation can take longer. Some injectors are a bit difficult to install, and therefore, you might need to call professional help to obtain a proper setup.

How to Install Injectors on 24v Cummins

Installing the injector on 24v Cummins might seem a daunting task for beginners. However, with proper guidance, you can complete the task without facing too much difficulty. This might take a bit longer for a beginner as compared to the professional.

Follow these simple steps to get the work done.

  1. First of all, pinch down the heater hose and remove the cylinder head lifting bracket.

  2. Then remove the cap bolt and find the fuel rail. It is generally screwed by bolts, so you must remove them. Be careful of any residual fuel that may spill.

  3. Each injector is attached to the rail by a wire harness. Remove the connector with gentle care as they are generally manufactured from plastic and might break.

  4. The removal of the connector is followed by unscrewing the injector. Remove the injector carefully from the manifold. This will create a hole in the intake manifest so you can install a new injector. Place the new injector in the manifest and tighten the bolts. Attach it to the connector and firmly screw the fuel rail.

In case you need a complete overview of what was just described, you are recommended to refer to the video below.


Having an efficient fuel injector on board will add remarkable power to your vehicle. It tends to add value to your driving experience. Before making any purchase, you are recommended to always keep a few things into consideration in order to make a valued purchase. With this, we come to the end of this detailed guide. Hopefully, you now have sufficient knowledge to pick the right model for your needs.

People Also Ask

Injectors are specially designed to increase the capability of your vehicle. They have surely revolutionized the industry. However, still, some people are concerned about the functionality of these injectors. Therefore, in this section, we have brought an answer to some of the frequently asked queries to help them make an informed decision.

Can You Have a Too Big of Injectors?

Yes, you can incorporate too big injectors in your vehicle. This happens when you are unable to command a low pulse width along with the low pressure from the regulator. However, it is recommended to always pick the proper size in order to get the best out of the product. A relatively big injector can lead to multiple issues like bad fuel mileage and poor drivability.

How Long Duel Fuel Injectors Work?

A dual fuel injector is ideally known for enhancing the performance of the vehicle by a sudden release of energy that ultimately powers the engine. The lifespan of each injector generally depends on the usage. With proper use and frequent maintenance, the time period can be remarkably increased to a great extent.

How to Tell if Fuel Injectors Are Clogged?

A faulty fuel filter can lead to a clogged fuel injector. This results in too much or too little fuel into the engine that ultimately results in a number of problems. There are multiple symptoms associated with a clogged injector, including poor idle, failed emission, increased fuel consumption, and rough engine performance. Moreover, you might face issue in starting the vehicle as well as the engine won’t be able to reach the full RPM.

Sean comes from the forums actually and drives an OBS Ford. He writes fantastic DIYs and knows his way around a camera, too. We keep him caffeinated and away from DPF filters to avoid another rant about recent emissions restrictions.