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Fuel Injectors

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Buy New, Used, & Rebuilt Fuel Injectors for Sale

Goldfarb & Associates offers the highest quality of new and rebuilt genuine OEM diesel fuel injectors from manufacturers such as Bosch, Stanadyne, Delphi, Denso, Zexel, and more. With thousands of injectors in stock at all times, Goldfarb surely has you covered. Whether you need parts for passenger automotive, heavy-duty trucks, light-duty pick-up trucks, industrial, commercial, agricultural, or marine vehicles, Goldfarb has the replacement diesel fuel injector to get your engine up and running once again.

Goldfarb offers injectors for applications that include Powerstroke, Cummins, Duramax, Ford, Chevrolet, GM, Dodge, BMW, Mercedes, Audi, Volkswagen, Hyundai, Kia, Detroit, Volvo, Mack, International, Navistar, Caterpillar, John Deere, Yanmar, Komatsu, and more. If your diesel engine is in need of fuel injector replacement parts, Goldfarb will be able to help you identify the injector and locate a new or remanufactured replacement at an affordable price.

Goldfarb never charges a core charge on injectors that are currently in stock. If you have any questions about diesel parts whatsoever, don't hesitate to reach out through our Live Chat or call us today!

Fuel Injectors

A diesel engine fuel injector is used to inject fuel into a diesel engine's combustion chamber. It is part of the fuel system, and its primary function is to deliver the necessary amount of fuel at a time to ensure optimal combustion and engine performance. In more modern diesel engines, you will often find electronic fuel injectors controlled by the engine's electronic control module (ECM). An electronic fuel injector may be more precise than a mechanical option, allowing for lower emissions and better fuel economy.

Fuel Injector Components

A diesel engine fuel injector comprises a nozzle, a valve, and a solenoid, which is a tightly wound electromagnetic coil. The valve and solenoid work together, controlling the timing and amount of fuel delivered to the chamber. The nozzle has several small holes and is responsible for spraying a fuel mist into the combustion chamber. In addition to these functional parts, you will also find a filter inside fuel injectors that remove impurities and debris from the fuel before it enters the nozzle. The filter is essential for efficient and reliable operation.

Different Types of Fuel Injection

Fuel injection can be done using different methods and with different types of injectors. Each type has strengths and weaknesses, and the best kind of system depends on the engine and vehicle requirements. Here are the five fuel injection types:

1. Single-Point Injection

Single-point injection (SPI), also called throttle-body injection, was the earliest fuel injector type, and it uses the simplest design. This system utilizes a single injector to deliver fuel to all of the engine's cylinders. This basic design is less efficient and not as precise as some of the styles that follow.

2. Sequential Fuel Injection

Sequential fuel injection (SPFI), or timed injection, is a multiport injection system. Using multiple injectors in an SPFI system, each injector is triggered independently, and they are all timed to deliver fuel in sequence to each cylinder. This process allows for precise control over fuel delivery, resulting in higher performance and better fuel economy.

3. Multipoint Injection

A multipoint injection system (MPFI) or port system uses multiple injector nozzles, each dedicated to a specific cylinder to deliver fuel to the engine. This system is more efficient than a single-point injection system allowing for more precise delivery. With multiple points of injection, the engine's air-to-fuel ratio is improved. The other advantage over single-point injection is that it keeps fuel from collecting in the intake manifold or condensing in the system.

4. Direct Injection

A direct injection system delivers fuel past the valves and directly into the engine's combustion chamber rather than to the intake manifold. Direct injection is much more common in diesel engines but can be found in gasoline engines as well. The fuel metering in a direct injection system is also more precise and efficient and works well in low-emissions and lean-burn engines.

5. Common Rail Injection

A common rail injection system (CRI) is used in more modern diesel engines. Rather than delivering fuel directly to the intake manifold or combustion chamber of an engine, a common rail injection system has a high-pressure pump that delivers fuel to a common rail for holding. The common rail acts as a central reservoir for pressurized fuel. When needed, the high-pressure fuel is delivered to injectors in precise amounts depending on the engine's operating conditions, including temperature and load. The extreme precision optimizes the combustion process and allows for improved fuel efficiency, better engine performance, and low emissions. A CRI system also uses sensors to monitor engine performance and adjust the amount and timing of fuel delivery.

Advantages of Using a Rebuilt Fuel Injector

Buying a rebuilt or remanufactured fuel injector will benefit your diesel engine in a variety of ways. Here are some benefits to consider:

1. Cost Savings

It may be obvious, but used and rebuilt fuel injectors are typically less expensive than brand-new injectors. A rebuilt fuel injector will be made from refurbished or remanufactured parts but can often provide the same reliable performance as a new part.

2. Better Fuel Economy

A rebuilt fuel injector can improve a vehicle's fuel economy by providing more precise fuel delivery to the engine. You do not need a brand-new injector to produce better combustion and less waste in a diesel engine.

3. Improved Vehicle Performance

A rebuilt fuel injector will improve engine performance, resulting in better acceleration, smoother idling, and reduced engine hesitation.

4. Reduced Emissions

Reduce fuel emissions by adding a rebuilt fuel injector. You will find less unburned fuel entering the exhaust system.

5. Longer Lifespan

Rebuilt fuel injectors are often more durable and long-lasting than brand-new options. The rebuilt parts you'll find at Goldfarb & Associates undergo thorough testing and quality control to ensure they meet OEM specifications before being sold.

Overall, using a rebuilt fuel injector can be a cost-effective improvement to your engine's performance, efficiency, and lifespan. When considering any rebuilt or remanufactured parts, make sure that a reputable supplier properly inspects them to ensure quality and reliability.

Used and Rebuilt Fuel Injectors FAQ

Q: Can you trust a used fuel injector?

A: While the reliability of used diesel engine parts can vary depending on their condition, age, and usage, Goldfarb & Associates works with an extensive and reliable network of professionals that guarantee their work. Every used and rebuilt fuel injector is carefully checked before it is sold and fitted to a vehicle. With maintenance and care, our used fuel injectors will serve you well for years.

Q: What are some signs that a fuel injection system is failing?

A: Some signs that your engine's fuel injector may be failing include poor vehicle performance, decreased fuel efficiency, engine misfiring, the check engine light coming on, rough or uneven idling, and an odor of gasoline inside or outside of the vehicle. Have a qualified mechanic examine your vehicle if you see (or smell) any of these signs.

Q: How long can a rebuilt fuel injector last?

A: A well-rebuilt fuel injector will last from 50,000 to 100,000 miles or more before needing to be replaced or serviced again. Regular maintenance and cleaning of the injectors and the fuel system can extend the lifespan. It is also important to replace the fuel filter as recommended and to use high-quality fuel for your vehicle's engine. If you suspect your rebuilt injector is failing or notice issues with the vehicle's performance, it is best to have a qualified mechanic inspect it as soon as possible.

Q: Can I replace just one fuel injector, or must I replace them all simultaneously?

A: It is usually recommended that you replace all fuel injectors at once to help ensure even fuel distribution and optimal engine performance. However, if only one injector is damaged, it may be possible to stick with one replacement. Talk to a qualified mechanic or parts supplier to determine the best solution for your vehicle.

Q: What should I look for when buying a rebuilt fuel injector?

A: While the rebuilt fuel injectors for sale at Goldfarb have been properly inspected, you should always examine used parts for any signs of damage, such as cracks or chips. You may also want to ask about any maintenance history of the injector and what the rebuild process involved. Fuel Injectors for Sale

With over 20 years of experience in the diesel injection industry, Goldfarb & Associates has the expertise necessary to help identify the fuel injectors that are right for your engine. In building a network of over 500 diesel injection remanufacturers around the country and the globe, Goldfarb & Associates can help locate even the most obscure and hard-to-find fuel injectors. In addition, Goldfarb thoroughly evaluates every fuel injector that arrives and leaves the Rockville, Maryland headquarters.

By physically inspecting all injector bodies, nozzles, and fuel connections, Goldfarb ensures that each one meets or exceeds OEM standards. With the developments in today's more complicated fuel injectors that include more advanced fuel delivery systems (common rail, piezo, etc.), Goldfarb understands the challenges of newer-style diesel injectors and will help diagnose and replace the necessary parts to get your engine running smoothly.

Goldfarb also guarantees that each fuel injector and diesel engine part will be shipped free of charge in the United States and packaged and protected according to the highest standards.


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