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Cummins ISL SCR Filter 2012-2018: OEM 5303808

CUMMINS ISL SCR FILTER 2012-2018: OEM 5303808

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 NUMBER5303808
PART TYPESCR Filter
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEISL
YEAR2012-2018
PART NUMBER5303808RM-SCR
ADDITIONAL NOTESOutlet module

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR Filter, Tamerx part number 5303808RM-SCR ( OEM Part Number 5303808 ). 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, production years 2012-2018, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: Outlet module

OEM NUMBERS

Primary OEM5303808
Additional OEM5303808, A041W58393

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490553767
WEIGHT44.00 LBS

SHIPPING OPTIONS

Ship Weight : 44.00 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.


Engineered to meet original equipment standards, the Cummins ISL SCR Filter (2012–2018) OEM 5303808 is a critical component for maintaining proper exhaust aftertreatment system operation. Designed for precise compatibility, it fits seamlessly with Cummins ISL engines within the specified model years. This SCR filter plays an important role in reducing nitrogen oxide (NOx) emissions, helping support compliance with emissions regulations. Constructed from durable, high-quality materials, it is built to withstand demanding diesel operating conditions while maintaining consistent functionality. Ideal for fleet operators and service professionals, this OEM filter supports reliable system operation and long-term engine dependability.

FITMENT CHART

YEARMAKEENGINE(S)
2012Cummins ISL
2013Cummins ISL
2014Cummins ISL
2015Cummins ISL
2016Cummins ISL
2017Cummins ISL
2018Cummins ISL

PEOPLE ALSO ASKS | BLOG(S)

When it comes to replacing emissions components like the Cummins ISL SCR Filter (OEM 5303808), ensuring compatibility with your engine is essential. Even though this filter is designed for ISL engines between 2012 and 2018, verifying the correct fit requires a closer look at your engine’s specific details.

Not all engines within the same model range are configured identically. Variations in build specifications can affect which parts are required, making proper identification a critical first step.

To accurately determine compatibility, here are the key factors to check:

  • Confirm your engine model and production year
    • Make sure your engine is a Cummins ISL within the 2012–2018 range, as this is the baseline requirement for this SCR filter.
  • Use your Engine Serial Number (ESN)
    • The ESN is the most reliable way to identify the exact parts your engine needs. It provides detailed information about how your engine was built.
  • Check the existing part number on your current filter
    • If your installed SCR filter shows OEM 5303808, you can confidently replace it with the same part.
  • Review your engine’s CPL (Control Parts List)
    • The CPL outlines the specific configuration of your engine and helps ensure the correct match for emissions components.
  • Consult a trusted supplier or Cummins database
    • Providing your ESN allows professionals to verify compatibility quickly and accurately.

Taking the time to confirm these details helps avoid ordering the wrong part, prevents installation issues, and ensures your emissions system continues to operate as intended.

An SCR filter is built to reduce emissions effectively, but its longevity depends on how well it’s maintained and operated. Without proper care, contamination and buildup can shorten its service life and lead to avoidable issues.

The best way to extend the lifespan of an SCR filter is by keeping the system clean and ensuring it operates under the right conditions. Consistent habits can make a noticeable difference over time.

Here are key ways to help your SCR filter last longer:

  • Use clean, high-quality DEF
    • Always use Diesel Exhaust Fluid that meets proper standards and store it in a sealed, contaminant-free container. Poor-quality DEF can lead to crystallization and internal blockages.
  • Avoid frequent short trips
    • Short driving cycles may not allow the system to reach the temperature needed for proper operation, which can cause deposits to build up inside the filter.
  • Follow routine maintenance schedules
    • Regular inspections help identify early signs of buildup, dosing issues, or sensor faults before they become more serious.
  • Address engine issues promptly
    • Problems like incomplete combustion can introduce excess soot or contaminants into the exhaust, placing added strain on the SCR system.
  • Ensure sensors and dosing components are working properly
    • Faulty readings or inconsistent DEF injection can reduce system efficiency and increase the likelihood of buildup.

By maintaining proper operating conditions and staying proactive with care, you can help extend the life of your SCR filter and keep your emissions system functioning reliably.

A restricted or contaminated SCR filter can reduce the effectiveness of emissions treatment, potentially triggering fault codes and affecting exhaust system operation.

Yes, it is built to OEM specifications, allowing for proper fitment and integration with the existing aftertreatment system without modification.

Yes, in many cases the engine control module calibration must be updated after installation to ensure the new SCR component functions correctly within the system.

The SCR filter is constructed using durable materials designed to withstand high exhaust temperatures and chemical reactions occurring during emissions treatment.

Cummins SCR Filters

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