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Cummins X15 SCR 2018-2021: OEM 5418500

CUMMINS X15 SCR 2018-2021: OEM 5418500

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 NUMBER5418500
PART TYPESCR
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEX15
YEAR2018-2021
PART NUMBER102-0291RM-SCR-6
APPLICATION NOTESOshkosh, 485-565, EPA17

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR, Tamerx part number 102-0291RM-SCR-6 ( OEM Part Number 5418500 ). 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 2018-2021, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM5418500
Additional OEM5418500

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490551695
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.


Ready to elevate your engine’s efficiency and emissions control? The Cummins X15 SCR 2018–2021: OEM 5418500 delivers reliable Selective Catalytic Reduction performance for heavy-duty applications. Engineered for a perfect fit and long-lasting durability, this OEM unit helps you stay EPA-compliant while maximizing uptime. Built tough to handle the demands of the road, it’s a smart choice for fleets that expect more.

FITMENT CHART

YEARMAKEENGINE(S)
2018Cummins X15
2019Cummins X15
2020Cummins X15
2021Cummins X15

PEOPLE ALSO ASKS | BLOG(S)

Keeping your diesel truck’s exhaust aftertreatment system functioning properly is key to staying emissions-compliant and dependable on the road. For Cummins X15 engines from 2018 to 2021, the Cummins X15 SCR 2018–2021: OEM 5418500 is a vital component engineered to support effective emissions reduction and reliable performance. Choosing the right SCR unit ensures proper interaction with your engine’s system and helps maintain smooth, trouble-free operation.

    • The Selective Catalytic Reduction (SCR) assembly targets nitrogen oxide (NOx) emissions, transforming them into nitrogen and water,
      helping your truck meet regulatory standards and reducing environmental impact.

    • The OEM 5418500 SCR unit is designed specifically for Cummins X15 engines built from 2018 through 2021,
      ensuring accurate fitment and seamless compatibility with the original aftertreatment system.

    • Working alongside DEF dosing and the rest of the exhaust components, this SCR assembly supports balanced emissions control,
      which assists with maintaining efficient DEF usage and consistent system performance.

    • Installing the correct OEM SCR helps reduce the likelihood of warning lights, fault codes, and derate conditions that can interrupt operations,
      keeping your truck in service and maximizing uptime.

    • A fully functioning SCR system helps protect other aftertreatment components by minimizing excessive emissions buildup,
      contributing to longer component life and fewer unexpected issues.

    • Choosing an OEM SCR replacement like the Cummins X15 SCR 2018–2021: OEM 5418500 delivers confidence in durability, correct integration,
      and dependable performance for essential emissions control.

Selecting the right SCR component makes a real difference when maintaining your Cummins X15 emissions system. The OEM 5418500 SCR assembly helps restore effective NOx reduction and ensures your truck continues to operate cleanly and efficiently. At Tamerx Diesel Parts, we provide reliable components to help you minimize downtime and keep your fleet performing at its best.

A Selective Catalytic Reduction (SCR) system is essential for reducing nitrogen oxide emissions in modern diesel engines. Designed for long-term durability, the SCR system relies on proper diesel exhaust fluid (DEF) dosing, clean exhaust flow, and healthy upstream components. Consistent maintenance practices can help prevent premature SCR failure and costly repairs.

  • Use high-quality DEF: Always use manufacturer-approved diesel exhaust fluid to avoid contamination and catalyst damage.

  • Keep the DEF system clean: Prevent dirt, debris, or water from entering the DEF tank, lines, or injector.

  • Maintain upstream emissions components: Proper DOC and DPF operation reduces soot and ash entering the SCR.

  • Address warning lights promptly: Early diagnosis of SCR or emissions fault codes helps prevent long-term damage.

  • Avoid extended low-temperature driving: Regular highway driving supports proper exhaust temperatures and DEF breakdown.

  • Inspect sensors and dosing components: Functional NOx sensors and DEF injectors ensure accurate emissions control.

Extending the life of an SCR system depends on preventive care and timely issue resolution. By maintaining DEF quality, monitoring system alerts, and supporting overall exhaust health, vehicle owners can maximize SCR lifespan and ensure reliable emissions performance.

By significantly reducing NOx output, this SCR filter ensures your engine stays compliant with strict environmental regulations. Proper SCR function is essential for passing emissions tests.

Indicators of failure include persistent SCR or DEF warning lights, repeated fault codes, and occasional engine derate conditions. These signs usually mean the SCR system isn’t reducing NOx effectively.

Replacement may be necessary if diagnostics show poor NOx conversion or if emissions system warnings persist. Addressing a failing SCR filter can prevent more extensive aftertreatment problems.

While its primary purpose is emissions control, a malfunctioning SCR filter can trigger derate conditions that affect engine power delivery. A functioning SCR helps maintain smooth, dependable engine behavior.

Cummins SCRs

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