
Cummins ISC, ISL, QSL Fuel Injector : OEM 5579409 ( Set of 6 )
CUMMINS ISC, ISL, QSL FUEL INJECTOR : OEM 5579409 ( SET OF 6 )

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY
WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured Tamerx Fuel Injector, Tamerx part number 2872331RM-SET ( OEM Part Number 5579409 ). All parts are proudly remanufactured in the U.S.A. to the highest of OEM standards, and improvements are often applied to the original design in the remanufacturing process. This part is primarily made for a Cummins ISC, ISL, QSL, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
OEM NUMBERS
Primary OEM | 5579409 |
Additional OEM | 5579409 |
ADDITIONAL DETAILS
CONDITION | Remanufactured |
UPC / Barcode | |
WEIGHT | 12.00 LBS |
SHIPPING OPTIONS
Ship Weight : 12.00 LBS
UPS Ground, 2nd Day Air, Next Day Air
SHIPPING POLICY
Tamerx Diesel Products ships via UPS Ground. Next day air shipping can be arranged for a reasonable price of anywhere from $50.00 - $100.00 depending on the weight of the product and your location. We will do everything we can to make sure that you get the service you need. We understand how important it is to receive your order as quickly as possible.
In most cases Tamerx Diesel Products only needs one address, as long as your product is shipping to the same location as your billing information. In order to eliminate credit card fraud, your billing information must match the credit card you provide.
The terms, conditions, and details of our warranty vary from product to product. Specific warranty details can be found below.
Tamerx Diesel Products provides a replacement warranty on all of our parts. The duration and mileage limitations of the warranty vary by product and are specified on the product's detail page/item listing.
Please note that the warranty covers replacement of the part and the cost of shipping the replacement part to you only. It does not cover any shop, labor, towing, or any similar or related costs. This is not a "money back guarantee".
If you experience a problem with your part or it is not functioning properly, the correct warranty procedure is to call us at (510) 257-1777 (8:00 AM - 5:00 PM ET Monday through Friday). Be sure to have your order number and/or other relevant order information ready so we can easily locate your order and resolve your issue as quickly as possible. From that point, we will review with you any troubleshooting steps that may need to be taken and other areas or systems that can be checked to rule out external problems contributing to your part's issue. If a replacement is determined to be necessary, we will then arrange for your replacement part to ship out ASAP and issue any necessary return shipping labels and/or documents.
As is the case for the majority of the diesel products sold on Tamerx Diesel Products, your part's warranty is active as soon as you install it. In some other cases, warranty activation is contingent upon you sending us your core (i.e., your old part). Tamerx Diesel Products will provide you a return shipping label for parts that have a warranty with a core return condition. When we have received your core return, the part's warranty coverage begins. We reserve the right to void the product warranty if your core is not received within the allotted time, or if it isn't received at all. If the warranty for the diesel part you are purchasing has a core return requirement, it will be clearly noted on the product detail page/item listing.
What is a Core Charge?
A core charge (also called "core deposit") is similar to the deposit you might pay for a can or bottle of soda and is a standard requirement in the auto parts industry. For example, in many states, to promote recycling, you pay a deposit when you purchase a can of soda and receive your deposit back when you return the empty can. Many automotive parts have a core charge, or core price, that works in essentially the same way as a soda can deposit.
30 Day Core Charge Hold
You authorize Tamerx Diesel Products, to hold your credit card for the specified core charge amount and that you agree to return your core with 30 days of receiving the purchased part. When we have received your core return, the hold is released and the core charge payment is canceled.
The customer, or parts buyer, is responsible for any shipping costs associated with core returns unless otherwise specified in the product listing/detail page. Tamerx Diesel Products offers prepaid UPS shipping labels (SKU numbers UPS-CR1 and UPS-CR2) for use in returning your core that are available for purchase on our website during your shopping/order process.
The shipping label you will need to use for the core return is dependent upon what part you are purchasing. UPS-CR1 is good for cores weighing up to 20 pounds. UPS-CR2 is appropriate for shipping cores weighing 21 pounds or more. You must include enough information with the core return that clearly identifies it as a.) a Core Return, and b.) contains enough information we can use to clearly associate the core return with your order. Including a copy of the invoice or packing slip that came with the original shipment, clearly marked "Core Return", is ideal. Alternately, you can include a note marked as "Core Return" that includes your order number, full name and address, and phone number or other contact information. Failure to include this information with your returned core will most likely delay any due core credit being issued and/or delay any applicable warranty activation. Core returns need to be for the exact part purchased and cannot be damaged. Substituting another part in place of the part you have purchased is not acceptable.
All fluids must be drained.
If you have purchased a set or a parts package, you will need to return cores for all components of the set. For example, if you have purchaed a high pressure oil pump with an IPR valve, you will need to return both HPOP and IPR valve cores to receive proper credit. If you have purchased an EGR cooler/EGR valve package, your core return must consist of an EGR cooler core and an EGR valve core, or core credit will not be given.
Core Charges are often mandated by state legislature, and, as such, the actual core charge and taxes on the charge may vary depending on the state in which you buy your part. The Tamerx Diesel Products core charge presented to you online today with your item is representative of the most common core charge.
Designed to support consistent engine working conditions, OEM 5579409 Fuel Injectors are built for Cummins ISC, ISL, and QSL engines. Each injector meets original equipment specifications, ensuring accurate fuel delivery and reliable integration with the engine’s fuel system. The direct-fit design allows for efficient, no-hassle installation, making this set a practical solution for maintenance professionals, fleet operators, and equipment owners. Whether you're performing scheduled service or addressing injector-related issues, these components help promote dependable operation in demanding work environments.
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When it comes to the performance and efficiency of your Cummins engine, the quality of your fuel injectors plays a crucial role. The Cummins ISC, ISL, and QSL Fuel Injectors, specifically the OEM 5579409 set of 6, are designed to meet the high demands of these powerful engines. Let's explore what makes these injectors a top choice for your Cummins engine.
Key Features of Cummins ISC, ISL, QSL Fuel Injectors:
- OEM Quality
- These injectors meet the Original Equipment Manufacturer (OEM) specifications, ensuring reliability and performance.
- Set of 6
- This set includes six injectors, providing a complete replacement for your engine.
- Engine Compatibility
- Designed specifically for Cummins ISC, ISL, and QSL engines.
Benefits of Using OEM 5579409 Injectors:
- Enhanced Performance
- Proper fuel atomization and delivery improve engine performance and fuel efficiency.
- Durability
- Built to withstand the harsh conditions of heavy-duty use, ensuring longevity.
- Reduced Emissions
- Improved fuel delivery helps in reducing engine emissions, contributing to a cleaner environment.
A faulty fuel injector can cause numerous issues for your diesel engine, leading to decreased performance and potentially costly repairs. Understanding the symptoms of a bad fuel injector can help you address problems early and keep your vehicle running smoothly.
Common Symptoms of a Bad Fuel Injector
One of the first signs of a failing fuel injector is a decrease in engine performance. This can manifest in several ways, including:
- Rough Idling
- The engine may sputter or feel rough when the vehicle is idling.
- Engine Misfires
- You might notice the engine skipping or misfiring during acceleration.
- Poor Fuel Economy
- A faulty injector can cause your engine to consume more fuel than usual.
- Starting Issues
- Difficulty starting the engine can also be a sign of injector problems.
- Check Engine Light
- The check engine light may illuminate if the injector is malfunctioning.
Several factors can lead to a bad fuel injector, including dirt or debris clogging the injector, electrical issues, or wear and tear over time. Regular maintenance and using high-quality fuel can help prevent these issues.
If you suspect a bad fuel injector, it’s essential to address the problem promptly. Replacing the injector with a high-quality part, like those offered by Tamerx Diesel Products, ensures optimal performance and longevity for your engine.
For all your diesel engine needs, including fuel injectors, trust Tamerx Diesel Products. Our commitment to quality and customer satisfaction guarantees the best performance for your vehicle. Visit our website today to learn more and find the perfect injector for your engine.
The lifespan of a fuel injector varies based on operating conditions and maintenance practices. With proper care, injectors can last between 150,000 to 250,000 miles.
Poor-quality fuel can lead to injector clogging and reduced performance. Using high-quality diesel fuel and regular fuel system maintenance can help maintain optimal injector function.
Yes, specific tools are recommended for proper installation to ensure correct seating and to prevent damage to the injector or engine components.
A faulty injector can cause incomplete combustion, leading to increased emissions and potential non-compliance with environmental regulations.