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Cummins X15 SCR 2018-2024: OEM 5418504

CUMMINS X15 SCR 2018-2024: OEM 5418504

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$4,995.00

AVAILABILITY IN STOCK
OEM NUMBER5418504
PART TYPESCR
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEX15
YEAR2018-2024
PART NUMBER5418504RM-SCR
APPLICATION NOTESVolvo 400-565 EPA21, EPA17

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR, Tamerx part number 5418504RM-SCR ( OEM Part Number 5418504 ). 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 X15, production years 2018-2024, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM5418504
Additional OEM5418504

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490550704
WEIGHT75.00 LBS

SHIPPING OPTIONS

Ship Weight : 75.00 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.


Supporting emissions control in modern diesel systems, the Cummins X15 SCR 2018–2024 (OEM 5418504) is designed for compatibility with select Cummins X15 engine applications. This Selective Catalytic Reduction (SCR) unit works with diesel exhaust fluid (DEF) to convert nitrogen oxides in the exhaust stream into less harmful gases before they exit the vehicle. Built to meet original equipment specifications, it provides reliable fitment and seamless integration with the existing aftertreatment system. The durable construction is designed to handle the high temperatures and demanding operating conditions commonly found in heavy-duty diesel environments. Replacing a worn or restricted SCR unit with the OEM 5418504 helps maintain proper exhaust system function and supports compliance with emissions regulations.

FITMENT CHART

YEARMAKEENGINE(S)
2018Cummins X15
2019Cummins X15
2020Cummins X15
2021Cummins X15
2022Cummins X15
2023Cummins X15
2024Cummins X15

PEOPLE ALSO ASKS | BLOG(S)

The Cummins X15 SCR (Selective Catalytic Reduction) system, OEM 5418504, is a critical component in the emissions control system used in many Cummins X15 engines produced between 2018 and 2024. Its primary role is to reduce nitrogen oxide (NOx) emissions produced during diesel combustion, helping trucks meet modern environmental standards.

The SCR unit works as part of the aftertreatment system and operates after exhaust gases have passed through earlier components such as the Diesel Oxidation Catalyst (DOC) and Diesel Particulate Filter (DPF). At this stage, the SCR system performs the final step in reducing harmful exhaust compounds.

Main Roles of the Cummins X15 SCR 5418504

  • Reduces nitrogen oxide (NOx) emissions
    • from diesel exhaust gases
  • Uses diesel exhaust fluid (DEF)
    • to trigger chemical reactions that convert pollutants
  • Converts NOx into nitrogen and water vapor,
    • which are less harmful to the environment
  • Supports compliance with modern emissions regulations
    • for heavy-duty diesel engines
  • Works with other aftertreatment components
    • to manage overall exhaust treatment

The SCR system injects DEF into the exhaust stream, where it reacts with NOx gases inside the catalyst. This reaction transforms harmful emissions into safer compounds before the exhaust leaves the vehicle.

For trucks equipped with Cummins X15 engines from 2018 to 2024, the OEM 5418504 SCR unit plays a central role in ensuring the emissions system functions properly and maintains regulatory compliance.

A Selective Catalytic Reduction (SCR) system is designed to reduce nitrogen oxide emissions in diesel vehicles. It works by injecting diesel exhaust fluid (DEF) into the exhaust stream, where it reacts with exhaust gases inside the SCR catalyst. When the system fails, it can trigger warning lights, emissions faults, or restricted vehicle operation.

The most common cause of SCR failure is contamination inside the catalyst or related components. When contaminants enter the exhaust system, they can interfere with the chemical reactions needed to reduce emissions effectively.

Several factors can lead to SCR system failure, including:

  • Low-quality or contaminated DEF
    • that leaves deposits in the system
  • DEF crystallization
    • caused by improper fluid dosing or storage conditions
  • Faulty sensors
    • that send incorrect readings to the control module
  • Injector problems
    • that prevent proper DEF distribution
  • Excessive soot buildup
    • from engine-related issues

Driving conditions and maintenance habits can also play a role. For example, irregular maintenance or ignoring warning lights can allow small issues to develop into larger SCR system problems.

Regular inspections, proper DEF handling, and prompt attention to diagnostic codes can help prevent contamination and extend the lifespan of SCR system components. Addressing engine or emissions issues early is one of the best ways to avoid SCR failure.

The SCR module operates together with components such as the diesel oxidation catalyst and diesel particulate filter.

The SCR stage significantly lowers nitrogen oxide levels before exhaust gases are released from the vehicle.

Technicians verify the correct component by matching OEM part number 5418504 with the engine application.

The module is designed to operate in high-temperature exhaust environments produced by heavy-duty diesel engines.

Cummins SCRs