
Cummins ISL, QSL SCR Filter 2018-2024: OEM 5418435
CUMMINS ISL, QSL SCR FILTER 2018-2024: OEM 5418435

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured Tamerx SCR Filter, Tamerx part number 5418435RM-SCR ( OEM Part Number 5418435 ). 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 ISL, QSL, production years 2018-2024, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
OEM NUMBERS
| Primary OEM | 5418435 |
| Additional OEM | 5418435 |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490552777 |
| WEIGHT | 55.00 LBS |
SHIPPING OPTIONS
Ship Weight : 55.00 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.
Helping reduce nitrogen oxide emissions in diesel applications, the Cummins ISL, QSL SCR Filter 2018–2024 (OEM 5418435) is designed for compatibility with select Cummins ISL and QSL engines. This Selective Catalytic Reduction (SCR) filter works with diesel exhaust fluid (DEF) to convert harmful gases in the exhaust stream before they exit the vehicle. Built to meet original equipment specifications, it provides reliable fitment and seamless integration with the existing aftertreatment system. The durable construction is intended to withstand the high temperatures and demanding operating conditions commonly found in heavy-duty diesel environments. Replacing a worn or restricted SCR filter with the OEM 5418435 helps maintain proper exhaust system function and supports compliance with emissions regulations.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2018 | Cummins | ISL | QSL | |||
| 2019 | Cummins | ISL | QSL | |||
| 2020 | Cummins | ISL | QSL | |||
| 2021 | Cummins | ISL | QSL | |||
| 2022 | Cummins | ISL | QSL | |||
| 2023 | Cummins | ISL | QSL | |||
| 2024 | Cummins | ISL | QSL | |||
PEOPLE ALSO ASKS | BLOG(S)
The Cummins ISL, QSL SCR Filter (Selective Catalytic Reduction), OEM 5418435, is a key component in the emissions system designed to reduce nitrogen oxide (NOx) emissions using diesel exhaust fluid (DEF). Found in many Cummins ISL and QSL engines from 2018 to 2024, this system depends on clean inputs and proper exhaust conditions to function effectively. With the right maintenance approach, you can help extend its lifespan and avoid unnecessary issues.
Tips to Extend the Life of Your Cummins SCR Filter
- Use high-quality diesel exhaust fluid (DEF)
- Always use DEF that meets recommended standards to prevent contamination inside the SCR catalyst.
- Store DEF properly
- Keep DEF sealed in clean containers and protect it from dirt, moisture, and extreme temperatures.
- Inspect the DEF system regularly
- Check the DEF tank, injector, pump, and lines for leaks, buildup, or blockages.
- Maintain the exhaust system
- Ensure there are no leaks or damaged components that could affect exhaust flow and SCR operation.
- Address warning lights and fault codes quickly
- Early diagnosis helps prevent further strain on the SCR system.
- Keep the engine properly serviced
- A well-maintained engine produces cleaner exhaust, which helps protect emissions components.
Why Preventive Care Matters
Taking care of the Cummins ISL, QSL SCR Filter OEM 5418435 helps maintain consistent emissions treatment and supports the overall function of the aftertreatment system. Regular inspections, proper DEF handling, and timely maintenance can significantly extend the service life of this important component.
A Selective Catalytic Reduction (SCR) system is designed to reduce nitrogen oxide emissions in diesel engines by using diesel exhaust fluid (DEF). When the SCR filter or catalyst fails, it can lead to warning lights, emissions faults, and restricted vehicle operation.
The most common cause of SCR filter failure is contamination within the catalyst or DEF system. When contaminants enter the system, they interfere with the chemical reaction needed to properly treat exhaust gases.
Several factors can lead to SCR filter failure, including:
- Contaminated or poor-quality DEF
- that leaves deposits in the system
- DEF crystallization
- caused by improper dosing or storage conditions
- Faulty sensors
- providing incorrect emissions data
- DEF injector issues
- that prevent proper fluid distribution
- Excessive soot or residue
- entering the exhaust system
Driving habits and maintenance also play a role. Ignoring warning lights or delaying repairs can allow small issues to develop into larger SCR system failures.
Regular maintenance, proper DEF handling, and prompt attention to diagnostic codes can help prevent contamination and extend the life of the SCR filter.
Diesel exhaust fluid is used in the system to enable chemical reactions that reduce nitrogen oxide emissions.
Medium-duty and heavy-duty commercial vehicles such as delivery trucks and vocational units may use this component.
The filter operates alongside DEF dosing components, sensors, and downstream catalyst modules.
Restricted flow can lead to inconsistent exhaust treatment and may trigger emissions-related alerts.









































