Loading...

Cummins X15 SCR 2018-2024: OEM 5418101

CUMMINS X15 SCR 2018-2024: OEM 5418101

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 NUMBER5418101
PART TYPESCR
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEX15
YEAR2018-2024
PART NUMBER5418101RM-SCR
APPLICATION NOTESNavistar 400-565 EPA21, EPA17

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR, Tamerx part number 5418101RM-SCR ( OEM Part Number 5418101 ). 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 OEM5418101
Additional OEM5418101

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490552142
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.


Designed for Cummins X15 engines spanning model years 2018–2024, OEM 5418101 is a selective catalytic reduction component that supports effective exhaust emissions control and EPA compliance. This SCR unit is engineered for accurate fitment and smooth integration with the existing aftertreatment system. Built with durable materials, it is suited for the high-temperature conditions common in heavy-duty diesel applications. The component helps maintain consistent aftertreatment operation while meeting OEM specifications. It is an ideal choice for fleet maintenance and specific repair needs requiring reliable emissions management.

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 5418101 operates as part of the engine’s aftertreatment system to treat exhaust gases before they exit the vehicle. It uses Selective Catalytic Reduction (SCR) technology, which is a chemical process designed to significantly reduce nitrogen oxide (NOx) emissions in heavy-duty diesel applications.

Here’s a clear explanation of how it works:

  • As exhaust gases flow through the aftertreatment system, a controlled amount of Diesel Exhaust Fluid (DEF) is injected into the hot exhaust stream upstream of the SCR catalyst. DEF is a mixture of urea and water that converts into ammonia when heated. 
  • The mixture of exhaust gases and ammonia then enters the SCR catalyst housed in the 5418101 unit. Within the catalyst, a chemical reaction occurs where NOx molecules react with ammonia and are converted into nitrogen and water vapor, both of which are much less harmful. 
  • Sensors before and after the SCR monitor NOx levels and temperature, allowing the engine control system to adjust DEF dosing so the system maintains regulatory compliance and reliable operation. 

Because it integrates with Cummins X15 engines from model years 2018–2024, OEM 5418101 is engineered for accurate fitment and proper system integration, helping ensure emissions are treated effectively under real-world conditions. 

Replacing your SCR (Selective Catalytic Reduction) system should be considered only after proper diagnosis confirms that the catalyst has reached the end of its service life. SCR systems are designed to be durable, and many failures are caused by upstream issues rather than the catalyst itself. Premature replacement without addressing root causes often leads to repeat failures.

You should begin evaluating SCR replacement when performance issues persist despite corrective actions. After confirming DEF quality, repairing sensor faults, and resolving upstream engine or emissions problems, continued SCR efficiency codes may indicate irreversible catalyst damage.

Midway through the diagnostic process, the following signs strongly suggest SCR replacement is necessary:

  • Persistent SCR efficiency or conversion fault codes
  • Verified good DEF quality and proper dosing operation
  • NOx sensors tested and confirmed functional
  • Evidence of catalyst poisoning from oil ash or coolant
  • Thermal damage from excessive exhaust temperatures
  • Failed ammonia storage or conversion tests

Once these conditions are met, replacement becomes the most reliable solution. However, installing a new SCR without correcting oil consumption, coolant leaks, failed EGR components, or regeneration issues will quickly damage the replacement unit.

SCR replacement should be the final step, not the first. Thorough diagnostics, documented test results, and confirmation of permanent catalyst degradation are essential before committing to replacement, ensuring long-term emissions compliance and avoiding unnecessary repair costs.

Yes, it connects with existing sensors and the engine control module to ensure proper monitoring and function.

While possible, professional installation is advised due to precision requirements for sensor connections and sealing.

Yes, it is manufactured to fit the exhaust system configurations of X15 engines from 2018 through 2024.

Yes, the unit includes the internal catalyst media needed for the selective catalytic reduction process.

Cummins SCRs