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Cummins QSX15 SCR Outlet Catalyst Module 2018-2024: OEM 5418396

CUMMINS QSX15 SCR OUTLET CATALYST MODULE 2018-2024: OEM 5418396

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$18,950.00

CORE CHARGE:

$7,500.00
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 NUMBER5418396
PART TYPESCR Outlet Catalyst Module
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEQSX15
YEAR2018-2024
PART NUMBER5418396RM-SCR
APPLICATION NOTESEPA17

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR Outlet Catalyst Module, Tamerx part number 5418396RM-SCR ( OEM Part Number 5418396 ). 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, production years 2018-2024, and comes with a EPA17 Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM5418396
Additional OEM5418211, 5418396, A059F361

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490557222
WEIGHT88.00 LBS

SHIPPING OPTIONS

Ship Weight : 88.00 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.


Dependable emissions control begins with the Cummins QSX15 SCR Outlet Catalyst Module 2018–2024 (OEM 5418396). Designed specifically for Cummins QSX15 engines, this SCR outlet catalyst module helps reduce NOx emissions while supporting efficient exhaust aftertreatment and reliable system operation. Manufactured to OEM specifications, it delivers precise fitment and dependable compatibility across the listed model years. Installing the correct SCR outlet catalyst module helps maintain proper exhaust flow, consistent emissions compliance, and long-lasting performance.

FITMENT CHART

YEARMAKEENGINE(S)
2018Cummins QSX15
2019Cummins QSX15
2020Cummins QSX15
2021Cummins QSX15
2022Cummins QSX15
2023Cummins QSX15
2024Cummins QSX15

PEOPLE ALSO ASKS | BLOG(S)

Every component in a diesel aftertreatment system has a specific purpose, and the outlet catalyst module serves as one of the final stages in the emissions process. The Cummins QSX15 SCR Outlet Catalyst Module 2018-2024: OEM 5418396 is engineered to integrate with the original exhaust system, making it a dependable replacement for maintaining proper aftertreatment operation and factory-style fitment.

  • OEM 5418396 is designed for 2018-2024 Cummins QSX15 engine applications, ensuring OEM-quality compatibility.
  • Functions as the outlet catalyst within the SCR system, supporting the final phase of exhaust gas treatment.
  • Built to fit original mounting locations and exhaust connections, allowing for a straightforward replacement on compatible applications.
  • Constructed with durable catalyst materials designed to withstand continuous exposure to high exhaust temperatures.
  • Works with the factory aftertreatment assembly, helping maintain proper alignment with surrounding emissions components.
  • Supports consistent exhaust gas movement through the system for dependable aftertreatment operation.
  • Manufactured for long-lasting durability, making it a reliable choice when replacing a worn or damaged outlet catalyst module.

The Cummins QSX15 SCR Outlet Catalyst Module 2018-2024 OEM 5418396 is a dependable OEM-style replacement that helps maintain the integrity of your diesel aftertreatment system. With direct-fit compatibility, durable construction, and reliable integration into the factory exhaust assembly, it is designed to support consistent emissions system operation for years to come.

In some situations, an SCR Outlet Catalyst Module may be inspected and cleaned if it has accumulated minor deposits or contamination. However, cleaning is not always an effective solution. If the catalyst has been physically damaged or its internal structure has deteriorated, replacement is typically the only reliable option. A complete diagnostic inspection is necessary to determine the appropriate repair.

  • Light contamination or external deposits may be addressed during routine aftertreatment system service.
  • Internal catalyst damage, such as melting, cracking, or substrate deterioration, cannot be repaired through cleaning.
  • Oil, coolant, or severe DEF contamination can permanently reduce catalyst efficiency and often requires replacement.
  • Repeated SCR efficiency fault codes after related system repairs may indicate the catalyst has reached the end of its service life.
  • Professional diagnostics can determine whether the problem is caused by the outlet catalyst module or another component, such as a NOx sensor or DEF injector.
  • Cleaning the catalyst without correcting the underlying cause may result in recurring SCR system problems.
  • Following the manufacturer's recommended service procedures helps ensure the correct repair is performed.

Whether an SCR Outlet Catalyst Module can be cleaned or must be replaced depends on its overall condition and the cause of the failure. Proper diagnosis and timely repairs help restore SCR system performance, maintain emissions compliance, and protect the rest of the aftertreatment system.

Yes, inconsistent engine performance can alter exhaust conditions and reduce the efficiency of the SCR process. Maintaining proper engine operation helps support catalyst performance.

High-quality DEF provides the correct chemical composition needed for the SCR reaction. Contaminated or degraded DEF can reduce NOx conversion efficiency.

Yes, leaks can disrupt exhaust flow and interfere with the chemical reaction inside the SCR catalyst. Repairing leaks helps maintain proper emissions performance.

Symptoms may include SCR efficiency fault codes, engine derate, increased NOx readings, emissions warning lights, or failed emissions inspections.

Cummins SCR Outlet Catalyst Modules