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Cummins X15 SCR 2018-2021: OEM 5506027

CUMMINS X15 SCR 2018-2021: OEM 5506027

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 NUMBER5506027
PART TYPESCR
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEX15
YEAR2018-2021
PART NUMBER5506027RM-SCR
APPLICATION NOTESTemsa, 485-565, EPA17

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR, Tamerx part number 5506027RM-SCR ( OEM Part Number 5506027 ). 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 OEM5506027
Additional OEM5506027

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490551244
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.


Keep your emissions system operating at peak efficiency with the Cummins X15 SCR 2018–2021: OEM 5506027, an essential aftertreatment component designed for modern diesel engines. This SCR assembly helps reduce harmful NOx emissions by converting them into less harmful gases during the exhaust treatment process.Engineered to match OEM specifications, it offers dependable fitment and durability for demanding Cummins X15 applications. Count on a reliable emissions solution that helps keep your truck compliant and ready for the road.

FITMENT CHART

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

PEOPLE ALSO ASKS | BLOG(S)

Modern diesel engines rely on advanced aftertreatment systems to control harmful exhaust pollutants and meet strict emission regulations. The Cummins X15 SCR 2018–2021: OEM 5506027 is a Selective Catalytic Reduction (SCR) component that plays an important role in reducing nitrogen oxide (NOx) emissions produced during diesel combustion. Installed within the exhaust aftertreatment system, this SCR unit works together with diesel exhaust fluid (DEF) to convert harmful gases into safer compounds before they exit the vehicle.

  • Designed for Cummins X15 engines from 2018 to 2021, the OEM 5506027 SCR fits directly into the factory aftertreatment system for accurate compatibility and installation.

  • Selective Catalytic Reduction technology works by introducing diesel exhaust fluid (DEF) into the exhaust stream, where it reacts with nitrogen oxides to create nitrogen and water vapor.

  • This chemical reaction significantly reduces NOx emissions, one of the primary pollutants produced by diesel engines.

  • A properly functioning OEM 5506027 SCR assembly supports balanced exhaust chemistry and stable emission system performance.

  • Accurate SCR operation helps maintain proper DEF dosing, which is essential for consistent emission reduction and proper exhaust flow.

  • Installing the correct OEM SCR component helps prevent emission system warning lights and reduces the likelihood of diagnostic trouble codes.

  • The catalyst structure inside the SCR unit is engineered to handle high exhaust temperatures and demanding diesel operating conditions.

  • Replacing a worn or restricted SCR assembly helps restore proper aftertreatment performance and maintain compliance with emission standards.

Choosing the Cummins X15 SCR 2018–2021: OEM 5506027 from Tamerx Diesel Parts ensures your emission aftertreatment system continues operating as designed. With the correct SCR unit installed, your truck can maintain cleaner exhaust output and dependable emission control for everyday operation.

The Selective Catalytic Reduction (SCR) system is built to withstand high exhaust temperatures and continuous operation. Its internal catalyst is designed to convert nitrogen oxide (NOx) into less harmful emissions using Diesel Exhaust Fluid (DEF). However, certain conditions can cause internal damage that reduces efficiency or leads to complete failure. Understanding what harms the SCR internally can help prevent premature replacement.

  • Oil contamination is one of the leading causes of internal damage. Excessive oil consumption or turbo-related issues can allow oil to enter the exhaust system, coating and degrading the catalyst material.

  • Coolant leaks within the engine can introduce harmful deposits into the exhaust stream. When coolant passes through the SCR, it can leave behind residue that permanently damages the catalyst.

  • Poor-quality or contaminated DEF may introduce impurities that interfere with the chemical reaction inside the SCR.

  • Excessive soot from unresolved Diesel Particulate Filter (DPF) issues can overload the system and restrict proper exhaust flow.

  • Overheating caused by improper regeneration cycles or exhaust restrictions can break down the catalyst substrate internally.

  • Physical impact or severe vibration may crack the internal substrate, reducing efficiency and triggering fault codes.

Internal SCR damage often results in reduced emissions efficiency, warning lights, and possible engine derate. Promptly addressing engine leaks, maintaining proper DEF quality, and keeping the entire aftertreatment system in good condition can help extend the life of the SCR and prevent costly repairs.

Catalyst aging, contaminated DEF, or exhaust system restrictions may lower efficiency. These issues can prevent the SCR catalyst from properly converting NOx gases.

The chemical reaction inside the SCR catalyst works best within a certain temperature range. If exhaust temperatures remain too low, emissions conversion may be less effective.

If the emissions system detects excessive NOx levels, the engine control module may reduce engine power. This safety measure helps prevent the vehicle from exceeding emissions limits.

Technicians usually check DEF quality, sensor signals, and related emissions components. These steps help determine whether the SCR catalyst or another system part is causing the issue.

Cummins SCRs