Loading...

Cummins L9, B6.7 SCR 2018-2024: OEM 5418654

CUMMINS L9, B6.7 SCR 2018-2024: OEM 5418654

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 NUMBER5418654
PART TYPESCR
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEL9, B6.7
YEAR2018-2024
PART NUMBER5418654RM-SCR
APPLICATION NOTESGrove Crane 260-350 EPA21, EPA17

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR, Tamerx part number 5418654RM-SCR ( OEM Part Number 5418654 ). 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 L9, 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 OEM5418654
Additional OEM5418654

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490551176
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.


Take control of your emissions system with the Cummins L9, B6.7 SCR 2018–2024: OEM 5418654, designed to help manage NOx levels in modern diesel applications. This SCR assembly works with diesel exhaust fluid to convert harmful exhaust gases into less harmful compounds during the aftertreatment process. Engineered to match OEM specifications, it provides reliable fitment and long-lasting durability for both Cummins L9 and B6.7 engines. Choose a dependable emissions solution that supports cleaner exhaust and consistent engine operation on every mile.

FITMENT CHART

YEARMAKEENGINE(S)
2018Cummins L9 B6.7
2019Cummins L9 B6.7
2020Cummins L9 B6.7
2021Cummins L9 B6.7
2022Cummins L9 B6.7
2023Cummins L9 B6.7
2024Cummins L9 B6.7

PEOPLE ALSO ASKS | BLOG(S)

Controlling exhaust emissions requires a properly functioning aftertreatment system that can process gases produced during diesel combustion. The Cummins L9, B6.7 SCR 2018–2024: OEM 5418654 is a Selective Catalytic Reduction (SCR) assembly designed for Cummins L9 and B6.7 engines. Installed in the exhaust pathway, this component helps convert nitrogen oxide gases into less harmful compounds through a catalytic chemical reaction.

  • Designed for Cummins L9 and B6.7 engines from 2018 to 2024, the OEM 5418654 SCR fits directly into the factory exhaust aftertreatment system.

  • The SCR catalyst chamber allows diesel exhaust fluid to react with nitrogen oxide emissions inside the exhaust stream.

  • As exhaust gases pass through the catalyst structure, chemical reactions convert harmful NOx gases into nitrogen and water vapor.

  • The catalyst substrate provides a large internal surface area that supports efficient exhaust gas treatment.

  • A properly functioning OEM 5418654 SCR unit helps maintain stable emission readings from NOx sensors placed before and after the catalyst.

  • Correct SCR operation supports coordination between the DEF dosing system and the exhaust aftertreatment components.

  • The catalyst housing is designed to tolerate high exhaust temperatures and continuous heavy-duty driving conditions.

  • Replacing a worn or restricted SCR assembly can help restore proper exhaust treatment and consistent aftertreatment operation.

The Cummins L9, B6.7 SCR 2018–2024: OEM 5418654 available from Tamerx Diesel Parts provides a reliable replacement option for maintaining emission system efficiency. With the correct SCR assembly installed, the aftertreatment system can continue processing exhaust gases effectively while supporting dependable engine operation.

The Selective Catalytic Reduction (SCR) system is responsible for reducing nitrogen oxide (NOx) emissions in modern diesel engines by using Diesel Exhaust Fluid (DEF). When the SCR system begins to fail, it typically provides clear warning signs. Recognizing these common symptoms early can help prevent reduced engine performance, emissions violations, and costly repairs.

  • An illuminated check engine light is one of the most frequent indicators of an SCR issue. Diagnostic trouble codes often point to catalyst efficiency, NOx sensors, or DEF system faults.

  • An SCR or emissions system warning message may appear on the dashboard, signaling a problem within the aftertreatment system.

  • Engine derate or reduced power mode can occur if the system detects that emissions are not being properly controlled.

  • Increased DEF consumption or DEF-related warnings may indicate improper dosing or injector issues.

  • Failed emissions testing can result from the SCR’s inability to properly reduce NOx levels.

  • Persistent fault codes related to NOx sensors, temperature sensors, or DEF quality may accompany a failing SCR system.

If you notice these symptoms, prompt diagnosis is important. Addressing SCR problems early helps maintain emissions compliance, prevent further aftertreatment damage, and keep your diesel engine operating reliably.

 

The chemical reaction inside the catalyst works best within a specific temperature range. If exhaust temperatures are too low, emissions reduction may not occur efficiently.

Yes, contaminated DEF can interfere with the catalytic reaction inside the SCR unit. This can lead to emissions warnings or reduced system efficiency.

The SCR system typically works alongside components like the diesel particulate filter and emissions sensors. These systems together help control exhaust pollutants.

Yes, blockages in the catalyst can restrict exhaust flow. This restriction may lead to increased backpressure and reduced engine performance.

Cummins SCRs