
Cummins ISX15 Fuel Injector 2011-2013: OEM 5579415RX ( Set of 6 )
CUMMINS ISX15 FUEL INJECTOR 2011-2013: OEM 5579415RX ( SET OF 6 )

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured OEX Reman Fuel Injector, OEX Reman part number 5579415RI-SET ( OEM Part Number 5579415RX ). 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 ISX15, production years 2011-2013, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
Additional Notes: OEX Reman- Inlcudeds injector and Fuel Connector
OEM NUMBERS
Primary OEM | 5579415RX |
Additional OEM | 2894920, 5579415, 5579415RX |
ADDITIONAL DETAILS
CONDITION | Remanufactured |
UPC / Barcode | 00840490538238 |
WEIGHT | 6.00 LBS |
SHIPPING OPTIONS
Ship Weight : 6.00 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.
Fuel system reliability is supported by the Cummins ISX15 Fuel Injector 2011-2013: OEM 5579415RX (Set of 6), a direct-fit replacement set for ISX15 diesel engines. Each injector is built to OEM specifications, providing precise fuel delivery and consistent operation across all six cylinders. Their strong construction ensures efficient combustion and dependable service life, even under demanding operating conditions. By choosing an OEM set, you minimize compatibility risks and help maintain the integrity of the engine’s fuel system. This complete injector set is a trusted choice for keeping Cummins-powered trucks operating smoothly and efficiently.
FITMENT CHART
YEAR | MAKE | ENGINE(S) | ||||
---|---|---|---|---|---|---|
2011 | Cummins | ISX15 | ||||
2012 | Cummins | ISX15 | ||||
2013 | Cummins | ISX15 |
PEOPLE ALSO ASKS | BLOG(S)
The Cummins ISX15 Fuel Injector, OEM part number 5579415RX, is designed to deliver precise, high-pressure fuel injection in ISX15 engines built between 2011 and 2013. This fuel injector is a critical component of the engine’s combustion system and is often sold as a complete kit—typically in sets of six.
Each injector is made up of several high-precision parts, all working together to ensure consistent fuel delivery, efficient combustion, and reduced emissions.
Main Components of the Injector Assembly:
- Injector Body
- main housing that contains internal components and guides the flow of fuel under high pressure.
- High-Pressure Inlet Tube
- Connects the fuel rail to the injector, allowing pressurized fuel to flow into the injector body.
- Nozzle and Needle Valve
- Responsible for atomizing the fuel into fine droplets as it enters the combustion chamber, enabling cleaner and more efficient combustion.
- Chamber Nozzle Gasket
- Creates a tight seal between the injector and the cylinder head, preventing combustion gas leaks.
- O-Ring Seals
- Prevent oil or fuel leaks around the injector body and ensure a secure fit in the engine.
Each part of the 5579415RX injector plays a critical role in ensuring optimal engine performance. Proper sealing prevents fuel loss and contamination. Precision fuel delivery improves combustion efficiency, lowers emissions, and contributes to smoother engine operation.
Together, these components form a durable, OEM-standard injector kit designed for reliability, power consistency, and long engine life.
Fuel injectors are built to be durable, but like any engine component, they won’t last forever. Their job is to deliver fuel in precise amounts and at the right time. Over years of use, injectors can wear out or become clogged, affecting engine function and efficiency.
Average Lifespan of Fuel Injectors
Most fuel injectors are designed to last between 80,000 to 150,000 miles, depending on several factors:
- Fuel quality
- Clean fuel helps prevent buildup and internal wear.
- Maintenance habits
- Regular oil and filter changes reduce contaminants that can reach the injector system.
- Driving conditions
- Stop-and-go traffic, towing, or idling for long periods may shorten injector life.
- Engine health
- Issues like worn piston rings or valve seals can lead to injector fouling.
- Use of additives
- Some fuel system cleaners can extend life by reducing deposits.
While injectors can last well over 100,000 miles with proper care, it’s important to watch for early signs of trouble—like misfires or rough idling. Routine inspection and preventive maintenance can help you get the most life out of your injectors.
Installing all six ensures even fuel distribution across every cylinder.
It atomizes fuel precisely, allowing efficient burning in the ISX15 engine.
Symptoms include hard starting, loss of power, smoke, or diagnostic codes.
Yes, professional installation and calibration are recommended for best performance.