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Cummins X15 SCR 2018-2021: OEM 5417532

CUMMINS X15 SCR 2018-2021: OEM 5417532

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 NUMBER5417532
PART TYPESCR
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEX15
YEAR2018-2021
PART NUMBER5417532RM-SCR-5
APPLICATION NOTES, 485-565, EPA17

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR, Tamerx part number 5417532RM-SCR-5 ( OEM Part Number 5417532 ). 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 OEM5417532
Additional OEM5417532

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490552098
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.


Covering 2018–2021 Cummins X15 diesel applications, the SCR unit with OEM 5417532 is an essential part of the exhaust aftertreatment system. This selective catalytic reduction module is engineered to match the X15 engine’s exhaust configuration and emissions sensor locations, ensuring proper integration with factory DEF (diesel exhaust fluid) delivery and control systems. Its role is to work with DEF to reduce nitrogen oxides (NOₓ) in the exhaust stream, supporting compliance with applicable emissions standards for the covered model years. Consistent SCR operation helps maintain steady exhaust flow and contributes to the effective performance of downstream aftertreatment components. This page provides application-specific details to assist with identifying the Cummins X15 SCR 2018–2021 (OEM 5417532) for accurate service and replacement needs.

FITMENT CHART

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

PEOPLE ALSO ASKS | BLOG(S)

The Cummins X15 SCR, OEM 5417532, is important because it plays a central role in keeping your engine emissions compliant, operational, and protected from aftertreatment-related issues. It is a core component of the Selective Catalytic Reduction (SCR) system used on 2018–2021 Cummins X15 engines.

At its core, the SCR unit is responsible for reducing nitrogen oxide (NOx) emissions, which are heavily regulated. Without a properly functioning SCR, the engine cannot meet emissions standards, and the vehicle may quickly encounter warning lights or reduced-operation conditions.

Why OEM 5417532 matters for your engine

  • Ensures emissions compliance
    • The SCR catalyst enables the chemical reaction that converts harmful NOx into nitrogen and water vapor, allowing the engine to meet required emissions limits.
  • Prevents derate and shutdown scenarios
    • SCR failures often trigger DEF and emissions fault codes that can lead to power derate or limited vehicle operation.
  • Supports proper DEF system operation
    • The SCR works with DEF dosing, NOx sensors, and temperature sensors. If the SCR isn’t functioning correctly, the entire system can become unstable.
  • Protects other aftertreatment components
    • A healthy SCR reduces stress on sensors, DEF injectors, and downstream exhaust components.
  • Maintains consistent engine operation
    • Proper SCR function helps avoid repeated fault codes, warning lights, and drivability interruptions.

The Cummins X15 SCR (OEM 5417532) is important because it enables effective NOx reduction, keeps the engine compliant with emissions regulations, and helps prevent costly downtime in 2018–2021 X15 applications.

No, an SCR (Selective Catalytic Reduction) system should not be reused after professional servicing, and replacement is the recommended solution.

Even if professional servicing removes surface buildup or DEF deposits, it cannot restore the SCR catalyst’s internal chemical coating once it has been contaminated, crystallized, or heat-damaged. SCR systems fail chemically, not mechanically—and that damage is permanent.

Why SCR reuse after servicing is not recommended

  • Catalyst poisoning cannot be reversed
    • DEF contamination, poor-quality DEF, or mineral buildup permanently reduce NOx conversion.
  • NOx efficiency fault codes return
    • Serviced SCR units commonly trigger repeat SCR efficiency or emissions faults.
  • Derate or restricted mode comes back
    • The ECM will continue limiting operation when emissions targets aren’t met.
  • Unstable DEF dosing behavior
    • The system may overcorrect DEF injection trying to compensate for a weak catalyst.
  • Short and unpredictable remaining lifespan
    • Even if it works briefly, failure usually returns quickly.

Professional servicing does not restore SCR functionality. For reliable emissions control and to avoid repeat derates or shutdown risks, SCR reuse is not recommended—replacement is the correct and dependable solution.

NOx and exhaust temperature sensors monitor conditions around the SCR catalyst to gauge conversion effectiveness.

Yes, it is a genuine Cummins® outlet catalyst module made for the X15 aftertreatment system.

Yes, the SCR outlet catalyst module can typically be serviced or replaced separately from other aftertreatment components.

It targets nitrogen oxides (NOx) in the exhaust stream to help manage emissions.

Cummins SCRs

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