Cummins ISX15 Decomposition Reactor Tube 2011-2017: OEM 2871759
CUMMINS ISX15 DECOMPOSITION REACTOR TUBE 2011-2017: OEM 2871759
ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY
WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured Tamerx Decomposition Reactor Tube, Tamerx part number 2871759RM-DECOMP ( OEM Part Number 2871759 ). 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 2011-2017, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
Additional Notes: 90 degree elbow
OEM NUMBERS
| Primary OEM | 2871759 |
| Additional OEM | 2871759 |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490556560 |
| WEIGHT | 20.00 LBS |
SHIPPING OPTIONS
Ship Weight : 20.00 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.
Serving as an essential component within the selective catalytic reduction (SCR) system, the Cummins ISX15 Decomposition Reactor Tube (2011–2017) OEM 2871759 is designed to support proper exhaust aftertreatment operation. Built to meet original equipment specifications, it ensures precise compatibility with Cummins ISX15 engines across the specified model years. This decomposition reactor tube facilitates the proper mixing and conversion of diesel exhaust fluid (DEF) before it reaches the SCR catalyst, helping reduce nitrogen oxide (NOx) emissions and support compliance with emissions regulations. Constructed from durable, high-quality materials, it is engineered to withstand high temperatures and the demanding conditions of heavy-duty diesel applications. Ideal for technicians, fleet operators, and maintenance professionals, this OEM component helps maintain consistent aftertreatment system functionality and long-term reliability.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2011 | Cummins | ISX15 | ||||
| 2012 | Cummins | ISX15 | ||||
| 2013 | Cummins | ISX15 | ||||
| 2014 | Cummins | ISX15 | ||||
| 2015 | Cummins | ISX15 | ||||
| 2016 | Cummins | ISX15 | ||||
| 2017 | Cummins | ISX15 | ||||
PEOPLE ALSO ASKS | BLOG(S)
The Cummins ISX15 Decomposition Reactor Tube (OEM 2871759) is exposed to extreme heat and plays a critical role in the aftertreatment system, so proper maintenance is essential for maximizing its service life. While the tube itself requires very little direct maintenance, keeping the surrounding emissions system in good condition can significantly reduce wear and prevent premature failure.
Here are some practical ways to help extend the lifespan of your decomposition reactor tube:
- Use only high-quality Diesel Exhaust Fluid (DEF)
- Clean DEF helps prevent contamination and reduces the chance of deposits forming inside the reactor tube.
- Keep the DEF system properly maintained
- Regularly inspect the DEF injector, dosing system, and related components to ensure DEF is being delivered evenly and accurately.
- Avoid prolonged engine idling
- Extended idle time lowers exhaust temperatures, which can contribute to DEF crystallization and buildup inside the reactor tube.
- Allow regeneration cycles to complete
- Interrupting regeneration too often can affect exhaust temperatures and reduce the efficiency of the aftertreatment system.
- Inspect the exhaust system for leaks or damage
- Exhaust leaks can alter flow patterns and temperatures, reducing the effectiveness of the decomposition process.
- Address warning lights and fault codes promptly
- Early diagnosis of SCR or DEF system issues can prevent excessive deposits and unnecessary stress on the reactor tube.
- Perform routine aftertreatment inspections
Checking sensors, clamps, and surrounding components helps ensure the entire emissions system continues to operate correctly. - Follow the recommended maintenance schedule
Keeping up with scheduled engine and aftertreatment maintenance helps maintain the proper operating conditions needed for long-term reliability.
Think of the Cummins 2871759 Decomposition Reactor Tube as the mixing chamber of the SCR system. Its lifespan depends on clean DEF, proper exhaust temperatures, and a well-maintained aftertreatment system. By practicing preventive maintenance and addressing small issues early, you can help minimize internal deposits, support efficient NOx reduction, and maximize the service life of the reactor tube.
A decomposition reactor tube is designed to withstand high temperatures and continuous operation, so it typically has a long service life. There isn't a fixed replacement interval, and many decomposition reactor tubes can last 100,000 to 200,000 miles or more, depending on the application, operating conditions, and maintenance practices.
Rather than replacing it based on mileage alone, it's best to monitor its condition and replace it when signs of wear, restriction, or damage appear.
Several factors can affect the lifespan of a decomposition reactor tube:
- DEF quality
- Using clean, high-quality Diesel Exhaust Fluid (DEF) helps minimize crystallization and deposit buildup inside the tube.
- Operating conditions
- Frequent short trips or applications that don't allow the exhaust system to reach proper operating temperature can increase the risk of internal deposits.
- Proper DEF dosing
- A malfunctioning DEF injector can create uneven spray patterns, leading to excessive buildup inside the reactor tube.
- Routine maintenance
- Regular inspections of the aftertreatment system can identify early signs of blockage, corrosion, or wear before they become major problems.
- Engine and exhaust system condition
- Problems affecting exhaust temperature or flow can reduce the efficiency of the decomposition process and shorten the tube's service life.
- Environmental exposure
- Heat cycles, vibration, moisture, and road debris can gradually contribute to external wear and corrosion over time.
With proper maintenance and normal operating conditions, a decomposition reactor tube can provide many years of reliable service. Performing routine inspections and addressing DEF or SCR system issues early are the best ways to maximize its lifespan and avoid unnecessary downtime.
The OEM 2871759 Decomposition Reactor Tube provides the pathway where Diesel Exhaust Fluid (DEF) mixes with hot exhaust gases and begins decomposing into ammonia before entering the SCR catalyst, supporting effective NOx reduction.
The reactor tube is positioned between the DEF dosing injector and the SCR catalyst, allowing sufficient time and distance for DEF to vaporize before entering the catalyst.
The reactor tube provides the necessary exhaust temperature, flow path, and mixing area for DEF to convert into ammonia, which is required for the SCR catalyst to reduce nitrogen oxide emissions.
No. The 2871759 is a decomposition reactor tube and does not contain catalytic material. The chemical conversion of NOx takes place inside the downstream SCR catalyst.
Cummins Decomposition Reactor Tubes
