Should I Buy Aftermarket Or OEM Diesel Fuel Injectors?

fuel injection

When planning to replace your vehicle’s diesel fuel injectors, it is important to choose the best injector type for your specific make and model. For most vehicles, owners will have the option of purchasing aftermarket or original equipment manufacturer (OEM) diesel injectors. Each type has its pros and cons, so be sure to assess your options.

Aftermarket Fuel Injectors
Pros: These types of fuel injectors are usually the least expensive option, as they have already been used in a different diesel engine. You generally won’t have to worry about them being worn out because the distributor should have inspected and tuned them. In some cases, they may have even been disassembled and refined to meet OEM quality. For many diesel truck owners, this can be both an economical and quality option.

Cons: Aftermath fuel injectors are usually only problematic when a vendor does not inspect them well. If you purchase from a low-quality distributor, you should expect a low-quality product. For this reason, be sure to be thorough in your search and make sure that you purchase your injectors from a company with integrity.

OEM Fuel Injectors
Pros: Original equipment manufacturer injectors include all new parts, making them as close to new as possible. The actual car manufacturer will assemble and test these parts, ensuring that they are up to standards. These parts will be shiny and new without fully sacrificing affordability. It is also helpful that the manufacturer performs this task since they are the experts on the specific part for your model.

Cons: Since these models have new parts, they are usually more expensive than aftermarket products. These parts also use an older body with new parts, so they could be faulty if the manufacturer does a poor job. Make sure that your fuel injection system has been tested before you leave with your vehicle.

Diesel fuel is 25% to 30% more energy rich than regular gasoline, so you are already doing your vehicle a service by using it. Choosing the right diesel fuel injection system can fully enhance your car’s efficiency and longevity. If you are having any doubts about which type of injector to choose, make sure to consult an expert. The age, make, model, and condition of your car could change its injection needs. Be diligent in this process and in inspecting the system after installation for any problems. These should be addressed right away.

Driving A Diesel Engine? Avoid These 5 Common Mistakes

2004 dodge cummins injectors

By taking good care of your diesel engine, you are keeping your engine running smoothly for as long as possible. If you are letting basic maintenance slip through the cracks, however, you are setting yourself up for spending excess time and money on repairs down the road. As the owner of a diesel engine, be sure that you are not making these common mistakes.

    1. Forgetting Fluids
      Depending on your vehicle’s specific needs, you should be following a strict schedule for changing your fluids. Make sure that you are changing your oil, transmission fluid, coolant, power steering fluid, and wiper fluid regularly.


  1. Dirty Filter
    If you are not changing your truck’s fuel filter regularly, it could be damaging your diesel fuel injection system. This happens because your fuel is not flowing properly. Clogged fuel injectors could mean big problems for your engine’s overall function, so be diligent about cleaning or changing your filter.
  2. Ignoring Small Problems
    If your truck isn’t starting as well as it normally does, or misfires a few times, don’t brush the problem under the rug. This could be a sign of failing fuel injectors or other engine issues. Getting your car into the mechanic is always the safest option to rule out or address engine damage.
  3. Skipping Inspections
    You should be scheduling regular inspections with a mechanic or dealership that understands your specific make and model. For example, if you are using 2004 Dodge cummins injectors, make sure that your vehicle is inspected by a business that has experience with these parts. You want to be schedule part replacement or repairs with the same mechanic or dealer that performed your inspection.
  4. Driving A Cold Engine
    Are you driving off as soon as your start your engine? This is a common mistake that can cause major issues. By letting your engine run before you drive, you are allowing the entire engine receive even lubrication and heat evenly. This is especially important if you are driving in a cold region.

Cars with diesel engines enjoy 20-40% more efficiency than gasoline counterparts. It is worth your wile to take care of your engine and reap these benefits. The best maintenance routine depends on your specific make or model, so speak to your mechanic about how to best service your vehicle. Whether you use 2004 dodge cummins injectors or 2006 5.9 cummins injectors, it is important to make sure that your engine is using and receiving its fuel efficiently.

Why Diesel Fuel Injectors Stop Working

2005 Duramax diesel

If you are noticing smoke coming from your engine, strange noises, or poor truck performance in general, your diesel fuel injectors could be to blame. When diesel injectors fail, it impacts the entire performance of your vehicle. From 2005 Duramax diesel injectors to 03 Cummins injectors, fuel injection systems can experience the same types of failures. If you suspect that your system is not working at all, the following issues could be to blame.

  • Lack Of Filtration: If your vehicle is showing problematic symptoms, it might be because your injection system is not filtering properly. To avoid this, be sure that you are changing your filter according to your vehicle’s owner’s manual.
  • Fuel Leakage: If fuel is leaking onto your fuel injectors, it could be causing corrosion on the hardware and excess particles in the fuel itself. Be sure that you are inspecting your tank regularly to make sure that there are not any cracks or loose places that could be releasing fuel.
  • Wrong Injection Rate: When systems are set at an incorrect injection rate, this usually points to loose or dislodged parts in your system. Be sure to get this inspected by a professional to pinpoint these spots and correct the issue.
  • Incorrect Installation: Any problems in the installation process will cause major issues later on. If the entire system is installed correctly, the fuel might spray in the wrong direction or not spray at all. Reinstallation or repair should be able to reverse this issue.
  • Wear And Tear: General damage could be the cause of your failed injection system. More modern rail-injectors can double the wear on a system because they release two or three times per engine cycle. While this might not be a problem for remanufactured models, be sure to ask your mechanic about how to address wear and tear.

Whether you have 2005 Duramax diesel injectors or 03 Cummins injectors, it is important to understand these common causes of failure. If you think that your engine is acting up, be sure to take your truck to a specialist right away to address any issues. By being diligent about repairs, you will keep your diesel vehicle on the road for many more miles.

Do My Diesel Fuel Injectors Need Replacing? Know These 5 Symptoms

best LLY injectors

Damaged or leaking fuel injectors can cause problems for the entire vehicle, potentially causing engine failure down the line. This is why it is important to know how to spot a faulty injection system. The best LLY injectors should allow the engine to run smoothly, allowing for optimal vehicle performance. If you notice any of the following symptoms, call your mechanic immediately and talk about ordering replacements.

  • You Smell Fuel: If you are frequently smelling a strong fuel order, this could mean that your injectors are leaking. This happens because the diesel injectors experience high pressure, and they sometimes start to leak from the nozzle or tip.
  • Lower Fuel Efficiency: When an injection system is performing as it should, the right amount of fuel is entering the engine chambers. If this process is happening incorrectly, your vehicle does not have the fuel it needs to function properly, causing your fuel efficiency to go down.
  • Trouble Starting: If you are having general starting issues, your fuel injectors might be to blame. This is especially true if your engine isn’t starting when you have a full tank.
  • Engine Misfires: While problematic fuel injectors cause general performance problems, engine misfires are a big sign. To avoid further engine problems such as stalling, get to a mechanic right away to check if your injectors are leaking or clogged.
  • Low RPMs: If the fuel injection system is clogged or leaking, and your engine is not receiving enough fuel, your vehicle may be stuck on lower RPM’s than usual. This could cause damaging stress on your engine, so be sure to address this as soon as possible.

Once you bring your vehicle to a mechanic, they will inspect your injectors to diagnose the problem. Leaking or clogs will likely be the main issue, which is easily fixed by cleaning, repair, or replacement. Even the best LLY injectors are subject to issues such as excess deposit buildup, which causes the system to fail due to internal or external deposits. Once you have your diesel injectors repaired or replaced, be sure to ask your mechanic how you can best maintain your system to avoid problems in the future.

What You Need To Know About Diesel Fuel Injectors

Diesel engines function using diesel fuel injectors. The best diesel fuel injectors efficiently deliver fuel into the engine, allowing the vehicle to function at its best. Here is what you should know about this intricate process.

What Is A Diesel Engine?

The main difference between a diesel engine and a regular engine is the way that the fuel is mechanically delivered. In a diesel engine, fuel enters the car’s combustion chambers through a series of fuel injector nozzles. This is a very hot and pressurized system.

What Is A Diesel Fuel Injector

Fuel injectors are the main players in this system. These pieces make sure that the engine is receiving the perfect amount of fuel in that moment. The injectors deliver the fuel as a fine mist into the cylinders. The complexities and variations of this part vary between engine models.

How Do The Injectors Work?

When the injection pressures reach 30,000 psi, detected by the injection needles, the system breaks the fuel into a fine mist. To break this down more specifically, this pressure triggers the injection valves to open, starting the flow of the fuel. This flow starts in the lower chamber, and the fuel passes through small holes that break down the liquid into smaller particles, or the fine mist mentioned above. Fuel broken down into this form is much easier to burn. Once this entire process is finished, the timing valve will cut of the pressure and shut the valve. Once the pressure builds back up, the valves will open again, releasing more fuel.

What Are The Different Types of Fuel Injectors?

Fuel injection systems are available in a multitude of types, depending on the specific make and model of the car. To make sure that your car is performing at its best, it is of vital importance that you purchase the appropriate injector. By installing an injector that is not fitted for your vehicle, your engine may not receive the appropriate amount of fuel or the entire system could fail.

To ensure that you are selecting the best diesel fuel injectors for your car’s needs, be sure to speak with a Diesel Logic professional. As industry leaders in diesel vehicles, we are here to assure your satisfaction.