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Cummins QSX15, ISX15 SCR Filter 2011-2016: OEM 5418388

CUMMINS QSX15, ISX15 SCR FILTER 2011-2016: OEM 5418388

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$4,495.00

CORE CHARGE:

$0.00
iCORE DISCLAIMER: The CORE charge is a 30 day hold and will not be processed as long as the CORE is returned within 30 days. If you do not have a CORE or fail to return the CORE within 30 days, the CORE charge hold amount will be processed at that time.

AVAILABILITY IN STOCK
OEM NUMBER5418388
PART TYPESCR Filter
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEQSX15, ISX15
YEAR2011-2016
PART NUMBER4377768RM-SCR
APPLICATION NOTESTier 4
ADDITIONAL NOTESOutlet Catylist Module

PRODUCT DESCRIPTION

This is a Genuine Remanufactured Tamerx SCR Filter, Tamerx part number 4377768RM-SCR ( OEM Part Number 5418388 ). 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 QSX15, ISX15, production years 2011-2016, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: Outlet Catylist Module

OEM NUMBERS

Primary OEM5418388
Additional OEM5418388, A050Z653

ADDITIONAL DETAILS

CONDITIONGenuine Remanufactured
UPC / Barcode00840490553170
WEIGHT115.00 LBS

SHIPPING OPTIONS

Ship Weight : 115.00 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.


Clean up your emissions with the Cummins QSX15, ISX15 SCR Filter 2011–2016 (OEM 5418388), engineered to enhance NOx reduction and support peak aftertreatment efficiency. This precision-designed SCR filter fits both QSX15 and ISX15 engines with exact OEM compatibility, helping maintain smoother exhaust flow and strong compliance with emission standards. Built for long-lasting durability and dependable performance under heavy-duty use, it’s a reliable choice for demanding hauls and everyday work alike. Upgrade your emission control system with a filter that keeps your rig running greener and more efficiently mile after mile.

FITMENT CHART

YEARMAKEENGINE(S)
2011Cummins QSX15 ISX15
2012Cummins QSX15 ISX15
2013Cummins QSX15 ISX15
2014Cummins QSX15 ISX15
2015Cummins QSX15 ISX15
2016Cummins QSX15 ISX15

PEOPLE ALSO ASKS | BLOG(S)

The Selective Catalytic Reduction (SCR) filter plays a vital role in controlling nitrogen oxide (NOx) emissions on Cummins QSX15 and ISX15 engines from 2011 to 2016. As part of the SCR emissions system, this filter helps convert harmful NOx in the exhaust into harmless nitrogen and water vapor, supporting cleaner exhaust output and helping your engine meet environmental standards. Over time, SCR filters can become worn or restricted, which can reduce emissions performance and trigger fault codes. The Cummins QSX15, ISX15 SCR Filter OEM 5418388 from Tamerx Diesel Parts is engineered to meet original equipment specifications, offering a dependable replacement to help keep your emissions system functioning as intended.

  • Effectively reduces NOx emissions by enabling the SCR system to convert nitrogen oxides into harmless
   nitrogen and water vapor, supporting cleaner exhaust output and better emissions control

  • Designed for Cummins QSX15 & ISX15 engines (2011–2016) ensuring proper fitment, correct installation,
   and seamless integration with the factory exhaust and SCR system

  • Supports stable exhaust flow by maintaining proper movement of exhaust gases through the SCR system,
   helping downstream emissions components operate efficiently

  • Built to OEM standards (5418388) providing dependable durability, consistent performance, and full
   compatibility with original SCR hardware

  • Ideal for highway and heavy-duty use where sustained emissions control and efficient SCR operation
   are important for long-term engine reliability

Replacing a worn or failing SCR filter with the Cummins QSX15, ISX15 SCR Filter OEM 5418388 from Tamerx Diesel Parts helps restore proper emissions treatment and supports the overall health of your exhaust system. Choosing a high-quality, OEM-matched SCR filter ensures your engine maintains efficient emissions performance and continues running reliably across varied driving conditions.

A Selective Catalytic Reduction (SCR) filter is designed to last for many miles while reducing nitrogen oxide emissions in diesel exhaust systems. However, certain conditions and maintenance issues can cause the SCR filter to fail sooner than expected. Understanding the most common causes helps prevent costly emissions system repairs.

  • Poor-quality or contaminated DEF: Incorrect or dirty diesel exhaust fluid can damage the catalyst and reduce efficiency.

  • DEF crystallization buildup: Low exhaust temperatures or improper dosing can cause hardened deposits that restrict flow.

  • Upstream DPF or DOC problems: Excess soot and ash entering the SCR can contaminate the filter prematurely.

  • Faulty NOx sensors or dosing components: Incorrect readings or DEF delivery issues can stress the SCR system.

  • Frequent short trips and idling: Low-temperature operation prevents proper DEF breakdown and catalyst activity.

  • Delayed maintenance or ignored warning lights: Small SCR faults can escalate into major failures if not addressed early.

Premature SCR filter failure is often caused by upstream issues or improper DEF management rather than the filter itself. Proactive maintenance, quality DEF use, and early diagnostics help extend SCR life and ensure reliable emissions performance.

Common signs include persistent SCR warnings, frequent DEF system alerts, and reduced engine performance. These symptoms often signal that the filter is no longer reducing NOx efficiently.

If the filter is blocked, you may experience increased backpressure, power loss, or engine derate. Replacing the filter promptly restores normal exhaust flow and helps avoid further damage.

While light surface deposits can sometimes be removed, heavy soot and chemical buildup often can’t be fully cleaned. Replacing the SCR filter ensures reliable emissions performance long-term.

Yes, this filter is designed to work with DEF injection as part of the selective catalytic reduction process. Proper DEF quality and supply are essential for optimal NOx reduction.

Cummins SCR Filters

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