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International N13 SCR 2018-2021: OEM 5418526

INTERNATIONAL N13 SCR 2018-2021: OEM 5418526

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$4,995.00

CORE CHARGE:

$1,000.00
iCORE DISCLAIMER: The CORE charge is a 30 day hold and will not be processed as long as the CORE is returned within 30 days. If you do not have a CORE or fail to return the CORE within 30 days, the CORE charge hold amount will be processed at that time.

AVAILABILITY IN STOCK
OEM NUMBER5418526
PART TYPESCR
BRANDTamerx Diesel Products
ENGINE MAKEInternational
ENGINE TYPEN13
YEAR2018-2021
PART NUMBER5418526RM-SCR
APPLICATION NOTESNavistar, 365-475, EPA17

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR, Tamerx part number 5418526RM-SCR ( OEM Part Number 5418526 ). 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 International N13, production years 2018-2021, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM5418526
Additional OEM5418526

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490550810
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 to support modern diesel aftertreatment systems, the International N13 SCR 2018–2021 (OEM 5418526) helps manage exhaust emissions through the selective catalytic reduction process. Built for International N13 engines within the listed model years, this unit is manufactured to meet OEM standards for proper compatibility. Its design supports consistent exhaust system function in vehicles equipped with SCR technology. Choosing the correct component helps maintain dependable emissions system operation.

FITMENT CHART

YEARMAKEENGINE(S)
2018International N13
2019International N13
2020International N13
2021International N13

PEOPLE ALSO ASKS | BLOG(S)

The exhaust aftertreatment system plays an important role in controlling the gases produced during diesel engine operation. One of the key components in this system is the Selective Catalytic Reduction (SCR) assembly. In International N13 engines, the SCR module works with Diesel Exhaust Fluid (DEF) to convert nitrogen oxide (NOx) emissions into nitrogen and water vapor before the exhaust leaves the system. This chemical process helps reduce harmful pollutants released into the environment.

  • Key Component in Emissions Control Systems
    The SCR assembly forms part of the engine’s aftertreatment setup, where it helps reduce nitrogen oxide levels in the exhaust stream before the gases exit the tailpipe.

  • Designed for International N13 Engines (2018–2021)
    This unit is intended for diesel engines within the International/Navistar N13 platform produced from 2018 to 2021, supporting compatibility with the engine’s factory emissions system layout.

  • Works with DEF to Neutralize Pollutants
    Diesel Exhaust Fluid is introduced into the exhaust stream where it reacts within the catalyst chamber, helping convert harmful NOx gases into safer compounds.

  • Direct Replacement Built to OEM Specifications
    Manufactured according to OEM 5418526 standards, the SCR assembly is designed to integrate with existing aftertreatment components such as sensors, DEF dosing hardware, and exhaust piping.

  • Constructed for Heavy-Duty Diesel Applications
    SCR components operate within hot exhaust conditions and continuous gas flow, so the assembly is built to withstand the demanding environment found in commercial truck engines.

The SCR module is an essential part of maintaining balanced emissions treatment in diesel-powered vehicles. For International N13 engines, using the correct SCR assembly helps support consistent exhaust processing and proper coordination between the engine and its aftertreatment system.

The Selective Catalytic Reduction (SCR) system is closely monitored by your vehicle’s onboard diagnostics to ensure emissions stay within regulated limits. When the system detects a problem, it alerts the driver through dashboard warning lights or messages. Recognizing these indicators early can help prevent reduced engine performance and more serious aftertreatment damage.

  • The check engine light is one of the most common signs of an SCR-related issue. Faults involving DEF dosing, NOx sensors, or catalyst efficiency can trigger this warning.

  • A dedicated SCR warning light or message may appear in vehicles equipped with specific emissions alerts. This often points directly to a malfunction within the SCR system.

  • A DEF warning light can indicate low fluid levels, poor DEF quality, or a malfunction in the DEF delivery system.

  • An emissions system warning message may display if the vehicle detects that NOx levels are not being properly reduced.

  • A reduced power or engine derate warning may activate if the SCR fault remains unresolved, limiting speed and performance.

If any of these warning lights appear, prompt diagnosis is important. Addressing SCR-related problems early helps maintain emissions compliance, prevent additional exhaust system damage, and keep your diesel engine running reliably.

No. Instead of filtering gases, the SCR catalyst converts harmful nitrogen oxides into safer compounds through chemical reactions.

SCR catalysts commonly use ceramic substrates with catalytic coatings such as vanadium or zeolite-based materials.

SCR reactions work best within a specific temperature range that allows the chemical process to convert nitrogen oxides effectively.

It directly supports the conversion of nitrogen oxides into harmless gases, helping maintain regulated exhaust emissions levels.