Loading...

Cummins B6.7 SCR 2018-2024: OEM 5418525

CUMMINS B6.7 SCR 2018-2024: OEM 5418525

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$5,995.00

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 NUMBER5418525
PART TYPESCR
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEB6.7
YEAR2018-2024
PART NUMBER5418525RM-SCR
APPLICATION NOTESPACCAR 200-260 EPA21, EPA17

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR, Tamerx part number 5418525RM-SCR ( OEM Part Number 5418525 ). 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 B6.7, production years 2018-2024, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM5418525
Additional OEM2116814X, 4394860, 5418525

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490550797
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.


Support proper emissions system function with the Cummins B6.7 SCR 2018–2024 (OEM 5418525). Designed for Cummins B6.7 engines, this SCR unit helps manage exhaust gases through the selective catalytic reduction process used in modern diesel aftertreatment systems. Built to meet OEM specifications, it is made for dependable fitment and compatibility with the listed model years. Using the correct SCR component helps keep the exhaust system operating as intended.

FITMENT CHART

YEARMAKEENGINE(S)
2018Cummins B6.7
2019Cummins B6.7
2020Cummins B6.7
2021Cummins B6.7
2022Cummins B6.7
2023Cummins B6.7
2024Cummins B6.7

PEOPLE ALSO ASKS | BLOG(S)

Modern diesel engines rely on advanced emissions components to keep exhaust output within regulated limits. The Cummins B6.7 SCR (Selective Catalytic Reduction) assembly is a key aftertreatment component designed to manage nitrogen oxide (NOx) emissions produced during diesel combustion. Working alongside Diesel Exhaust Fluid (DEF), this component supports the chemical process that converts harmful pollutants into safer byproducts before they exit the exhaust system.

  • Supports NOx Reduction in the Exhaust Stream
    The SCR system works by facilitating a reaction between DEF and nitrogen oxides in the exhaust, converting these pollutants into nitrogen and water vapor. This process helps control emissions produced by diesel engines.

  • Designed for Cummins B6.7 Engine Applications
    This assembly is engineered specifically for Cummins B6.7 engines produced between 2018 and 2024, ensuring compatibility with the engine’s aftertreatment layout and emissions system components.

  • Works with the Engine’s Aftertreatment System
    The SCR module operates alongside other emissions components such as the DEF system and sensors, helping maintain coordinated exhaust treatment and balanced system operation.

  • Direct-Fit OEM Replacement Design
    Built to match original equipment specifications, this SCR assembly is intended to install within the existing exhaust aftertreatment configuration without requiring modifications.

  • Built for Heavy-Duty Exhaust Conditions
    SCR catalysts operate in high-temperature exhaust environments, and components are constructed to handle demanding duty cycles common in commercial diesel vehicles.

In modern diesel platforms, the SCR assembly plays a critical role in keeping the emissions system functioning as intended. For vehicles powered by the Cummins B6.7 engine, the correct SCR unit helps maintain stable exhaust treatment and supports the coordinated operation of the engine’s aftertreatment system across various driving conditions.

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.

 

Possible signs include emissions-related warning lights, abnormal exhaust behavior, or reduced efficiency in the aftertreatment system.

Yes, deposits or contaminants in the exhaust system can gradually affect the catalyst’s ability to process emissions.

It works together with sensors, DEF dosing equipment, and other aftertreatment components to manage exhaust chemistry and emissions levels.

Rather than filtering exhaust, the SCR catalyst triggers chemical reactions that convert harmful gases into safer compounds.

Cummins SCRs