Cummins X15, X12 SCR Filter 2018-2024: OEM 5418595
CUMMINS X15, X12 SCR FILTER 2018-2024: OEM 5418595
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 5418595RM-SCR ( OEM Part Number 5418595 ). 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 X15, X12, production years 2018-2024, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
Additional Notes: Outlet Module
OEM NUMBERS
| Primary OEM | 5418595 |
| Additional OEM | 5418595 |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490552715 |
| 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.
Covering 2018–2024 Cummins X15 and X12 applications, the SCR Filter with OEM 5418595 is a key component of the diesel exhaust aftertreatment system. This selective catalytic reduction filter is engineered to match the exhaust configurations and emissions sensor locations specific to X15 and X12 engines, ensuring proper integration with factory DEF (diesel exhaust fluid) delivery and control systems. Its role is to work with DEF to reduce nitrogen oxides (NOₓ) in the exhaust stream, helping support compliance with applicable emissions standards throughout these model years. Reliable SCR filter operation supports consistent exhaust flow and contributes to the effective performance of downstream aftertreatment components. This page provides application-focused details to assist with identifying the Cummins X15 and X12 SCR Filter 2018–2024 (OEM 5418595) for accurate service and replacement needs.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2018 | Cummins | X15 | X12 | |||
| 2019 | Cummins | X15 | X12 | |||
| 2020 | Cummins | X15 | X12 | |||
| 2021 | Cummins | X15 | X12 | |||
| 2022 | Cummins | X15 | X12 | |||
| 2023 | Cummins | X15 | X12 | |||
| 2024 | Cummins | X15 | X12 | |||
PEOPLE ALSO ASKS | BLOG(S)
The Cummins X15 / X12 SCR Filter, OEM 5418595, is a major aftertreatment component designed to reduce NOx emissions using the SCR (Selective Catalytic Reduction) process. Since it works directly with DEF dosing, exhaust heat, and multiple sensors, its lifespan depends heavily on keeping the entire system clean, sealed, and properly maintained.
If you want your SCR filter to last as long as possible, focus on preventing the most common causes of SCR damage: DEF contamination, crystallization, exhaust leaks, sensor failures, and ignored fault codes.
Best Ways to Extend SCR Filter Life
- Always use clean, certified DEF
- DEF quality directly impacts SCR system health.
- Use DEF from reputable suppliers
- Keep DEF containers sealed
- Never use DEF that looks dirty or has been stored improperly
- Prevent DEF crystallization
- Crystallized DEF can clog dosing components and interfere with the SCR reaction.
- Inspect for leaks in DEF lines and fittings
- Watch for dried white residue near the doser area
- Repair DEF seepage immediately
- Fix SCR and DEF fault codes early
- Small issues become expensive fast.
- Don’t ignore SCR efficiency codes
- Address warning lights before derate conditions occur
- Avoid clearing codes without diagnosing the cause
- Keep sensors and wiring in good condition
- SCR operation depends on accurate readings.
- Check NOx sensors and temperature sensors
- Inspect harnesses for corrosion, broken pins, or loose connectors
- Protect wiring from heat and vibration damage
- Prevent exhaust leaks upstream
- Leaks can throw off temperature and NOx readings and reduce SCR efficiency.
- Inspect clamps, gaskets, and exhaust joints
- Repair leaks before they cause incorrect dosing or system strain
- Maintain overall engine health
- Cleaner combustion helps protect aftertreatment components.
- Stay on schedule with oil and filter changes
- Replace air filters regularly
- Use quality fuel and follow service intervals
To prolong the life of your Cummins X15/X12 SCR Filter (OEM 5418595), keep DEF clean, prevent crystallization, repair leaks quickly, and respond early to warning signs. These habits protect the SCR catalyst and help the entire aftertreatment system stay reliable long-term.
The signs of a bad SCR filter (SCR catalyst) usually show up as NOx efficiency problems, repeated emissions warnings, and DEF system-related faults. Since the SCR’s job is to reduce NOx using DEF, failure is typically detected by the ECM through sensor readings—not by obvious mechanical damage.
Common signs of a bad SCR filter
- Check engine light / emissions warning light
- One of the first signs that the SCR is not meeting emissions requirements.
- NOx efficiency fault codes
- Codes such as “SCR efficiency below threshold”, NOx conversion low, or emissions system fault strongly indicate catalyst degradation.
- Derate / restricted operating mode
- Many vehicles will enter derate (limp mode) when SCR performance drops or faults remain active.
- Abnormal DEF consumption
- You may notice higher-than-normal DEF usage because the system tries to compensate for low NOx conversion.
- Strong ammonia smell
- If DEF is injected but the SCR catalyst cannot process it correctly, ammonia may pass through the exhaust (ammonia slip).
- DEF crystallization or deposits
- White crusty buildup near the doser/injector or SCR inlet often signals crystallization, which can restrict flow and damage the catalyst.
- Repeated SCR faults even after component repairs
- If NOx sensors, dosing components, and wiring check out but SCR faults keep returning, the SCR filter is likely contaminated or heat-damaged.
A bad SCR filter is most often confirmed by persistent NOx efficiency codes, repeated derate conditions, abnormal DEF behavior, and recurring emissions warnings—and in most cases, replacement is the most reliable solution.
Yes, the SCR filter is essential for lowering nitrogen oxide emissions in the exhaust stream.
Yes, issues with the SCR filter can cause aftertreatment system fault codes and warning indicators.
NOx sensors and temperature sensors are used to monitor exhaust composition and system status.
Yes, OEM 5418595 is a genuine Cummins-specified SCR catalyst component.
Cummins SCR Filters
