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Cummins L9 SCR 2022-2024: OEM 5418950

CUMMINS L9 SCR 2022-2024: OEM 5418950

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 NUMBER5418950
PART TYPESCR
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEL9
YEAR2022-2024
PART NUMBER5418950RM-SCR
APPLICATION NOTESPACCAR 260-350 EPA21

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR, Tamerx part number 5418950RM-SCR ( OEM Part Number 5418950 ). 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, production years 2022-2024, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM5418950
Additional OEM5418950

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490551213
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.


Stay ahead of emissions demands with the Cummins L9 SCR 2022–2024: OEM 5418950, designed to support cleaner exhaust flow in modern diesel systems. This SCR assembly helps convert nitrogen oxide emissions into less harmful compounds as part of the engine’s aftertreatment process. Manufactured to meet OEM specifications, it offers dependable fitment and durability for Cummins L9 applications. Choose a reliable component that helps maintain efficient operation and consistent performance on every mile.

FITMENT CHART

YEARMAKEENGINE(S)
2022Cummins L9
2023Cummins L9
2024Cummins L9

PEOPLE ALSO ASKS | BLOG(S)

Exhaust aftertreatment systems are designed to reduce harmful gases produced during diesel combustion. The Cummins L9 SCR 2022–2024: OEM 5418950 is a Selective Catalytic Reduction (SCR) assembly used in Cummins L9 engines to help control nitrogen oxide (NOx) emissions within the exhaust stream. Installed as part of the aftertreatment system, this SCR component works with diesel exhaust fluid (DEF) to convert harmful gases into nitrogen and water before they exit the vehicle’s exhaust system.

  • Designed for Cummins L9 engines from 2022 to 2024, the OEM 5418950 SCR fits directly into the factory aftertreatment system layout.

  • The SCR catalyst chamber allows DEF to interact with exhaust gases so nitrogen oxide pollutants can be chemically converted.

  • As exhaust flows through the catalyst structure, NOx gases are transformed into nitrogen and water vapor.

  • The internal catalyst substrate contains multiple channels that increase the reaction surface for consistent emission treatment.

  • A properly functioning OEM 5418950 SCR unit helps maintain stable readings from emission monitoring sensors in the exhaust system.

  • The SCR assembly works together with DEF dosing components and other aftertreatment parts to manage overall exhaust chemistry.

  • The catalyst housing is built to handle sustained high exhaust temperatures during heavy-duty engine operation.

  • Replacing a restricted or aging SCR unit helps restore proper exhaust gas processing and consistent emission control.

The Cummins L9 SCR 2022–2024: OEM 5418950 from Tamerx Diesel Parts provides a reliable replacement solution for maintaining proper aftertreatment performance. Installing the correct SCR assembly helps support consistent exhaust treatment and dependable emission system operation.

The Selective Catalytic Reduction (SCR) system is built to provide long-term emissions control in modern diesel engines. Designed to operate under high temperatures and demanding conditions, the SCR catalyst can last for many miles when properly maintained. However, several factors can influence how long the system remains effective and efficient.

  • The quality of Diesel Exhaust Fluid (DEF) plays a major role. Contaminated or incorrect DEF can damage the catalyst and reduce its ability to properly treat exhaust gases.

  • Engine oil consumption can introduce oil into the exhaust stream, coating the catalyst surface and shortening its service life.

  • Coolant leaks inside the engine may send harmful deposits through the exhaust system, permanently affecting SCR performance.

  • Ongoing Diesel Particulate Filter (DPF) issues, such as excessive soot buildup or improper regeneration, can increase heat and stress within the aftertreatment system.

  • Faulty sensors or improper DEF dosing can cause the SCR to operate inefficiently over time.

  • Severe-duty operation, heavy loads, and extended idling can gradually impact exhaust components, including the SCR.

  • Delayed repairs after warning lights appear can allow small issues to escalate into more significant damage.

SCR lifespan depends largely on proper maintenance and overall engine health. Using clean DEF, addressing engine concerns promptly, and keeping the entire emissions system functioning correctly can help extend the durability of the SCR and maintain reliable performance.

Yes, leaks in the exhaust system can disrupt the emissions reduction process. They can also cause incorrect sensor readings.

The SCR system significantly reduces nitrogen oxide emissions. This helps diesel engines produce cleaner exhaust.

Yes, faulty sensors can send incorrect data to the engine control system. This may cause improper DEF dosing and emissions errors.

Ignoring SCR problems can lead to repeated emissions faults and reduced engine power. Fixing the issue early helps keep the truck running properly.

Cummins SCRs