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Cummins X15 SCR 2018-2024: OEM 5418539

CUMMINS X15 SCR 2018-2024: OEM 5418539

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 NUMBER5418539
PART TYPESCR
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEX15
YEAR2018-2024
PART NUMBER5418539RM-SCR
APPLICATION NOTESVolvo 485-605 EPA21, EPA17

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR, Tamerx part number 5418539RM-SCR ( OEM Part Number 5418539 ). 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 OEM5418539
Additional OEM5418539

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490550940
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.


Built to handle the demands of modern diesel aftertreatment systems, the Cummins X15 SCR (OEM 5418539) is designed for 2018–2024 Cummins X15 engines. This SCR unit plays a vital role in the selective catalytic reduction process, helping manage nitrogen oxide emissions within the exhaust system. Manufactured to meet OEM specifications, it provides dependable compatibility and a direct-fit design for easier installation. A reliable replacement solution for maintaining proper function of your Cummins X15 emissions system.

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 2018–2024: OEM 5418539 is an important component in the diesel aftertreatment system used on Cummins X15 engines. This Selective Catalytic Reduction (SCR) assembly is designed to process exhaust gases after combustion, helping reduce harmful nitrogen oxide emissions produced during engine operation. By working together with Diesel Exhaust Fluid (DEF) and other emissions components, the SCR catalyst supports proper exhaust treatment before gases exit the vehicle.

  • The Cummins X15 SCR OEM 5418539 functions as an outlet catalyst module within the engine’s aftertreatment system.

  • Exhaust gases pass through the SCR catalyst where DEF reacts with nitrogen oxide emissions.

  • This chemical reaction converts harmful NOx gases into nitrogen and water vapor before they leave the exhaust system.

  • The SCR assembly works alongside other emissions components such as the DOC and DPF to complete the exhaust treatment process.

  • OEM 5418539 is designed for compatibility with Cummins X15 engines from 2018 through 2024, matching the factory aftertreatment configuration.

  • The catalyst housing is built to withstand high exhaust temperatures and constant exposure to exhaust gases inside the emissions system.

A properly functioning SCR catalyst plays a major role in the overall diesel aftertreatment system. The Cummins X15 SCR 2018–2024: OEM 5418539 is designed to provide the correct fit and emissions treatment capability required for Cummins X15 engines. Customers searching for dependable replacement emissions components can find this SCR assembly available from Tamerx Diesel Parts.

The Selective Catalytic Reduction (SCR) system plays a key role in reducing harmful emissions in modern diesel engines. By injecting Diesel Exhaust Fluid (DEF) into the exhaust stream, the SCR system helps convert nitrogen oxides (NOx) into less harmful gases. When the SCR system stops working properly, it can lead to noticeable performance issues, warning lights, and even vehicle derating. Understanding what happens when SCR fails can help you address problems early and avoid costly downtime.

  • One of the first signs of an SCR malfunction is a dashboard warning light. The system continuously monitors DEF levels, NOx sensors, and overall efficiency. If it detects a fault, it will alert the driver immediately.

  • Many diesel vehicles are programmed to reduce engine power if the SCR system fails. This “derate” mode limits speed and performance to encourage prompt repairs and maintain emissions compliance.

  • Without a functioning SCR system, harmful nitrogen oxide (NOx) emissions increase significantly. This can cause the vehicle to fail emissions testing and may result in fines or operational restrictions in regulated areas.

  • Faulty sensors, clogged DEF injectors, or contaminated DEF fluid can cause improper dosing. This may trigger repeated fault codes or excessive DEF usage.

  • Ignoring SCR issues can place additional strain on other emissions components, including the Diesel Particulate Filter (DPF). Over time, this can lead to more extensive and costly repairs.

If your SCR system stops working, it’s important to address the issue quickly. From warning lights and reduced power to increased emissions and possible derating, SCR problems can impact both vehicle operation and compliance. Regular maintenance, proper DEF handling, and timely repairs help keep your diesel engine running reliably and within emissions standards.

Yes, emissions issues related to the Cummins X15 SCR 2018–2024: OEM 5418539 may cause the engine to reduce power.

Yes, soot, ash, or other exhaust deposits can build up inside the Cummins X15 SCR 2018–2024: OEM 5418539 over time.

Yes, contaminated or low-quality DEF can reduce the efficiency of the Cummins X15 SCR 2018–2024: OEM 5418539.

Yes, the Cummins X15 SCR 2018–2024: OEM 5418539 is a key part of the diesel emissions control system.

Cummins SCRs