
Cummins QSB 6.7L, ISB SCR Filter 2011-2017: OEM 5418022
CUMMINS QSB 6.7L, ISB SCR FILTER 2011-2017: OEM 5418022

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 5418022RM-SCR ( OEM Part Number 5418022 ). 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 QSB 6.7L, ISB, production years 2011-2017, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
Additional Notes: Outlet Catalyst Module
OEM NUMBERS
| Primary OEM | 5418022 |
| Additional OEM | 5418022, A055V177 |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490553019 |
| WEIGHT | 53.00 LBS |
SHIPPING OPTIONS
Ship Weight : 53.00 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.
Designed for 2011–2017 Cummins QSB 6.7L and ISB applications, the SCR Filter (OEM 5418022) is a critical component of the diesel emissions aftertreatment system. This selective catalytic reduction filter is engineered to match factory exhaust configurations and emissions sensor locations, ensuring proper fitment and compatibility with OEM systems. Its function is to work with diesel exhaust fluid (DEF) to help reduce nitrogen oxide (NOₓ) emissions in the exhaust stream, supporting compliance with applicable emissions standards for these model years. Reliable SCR filter operation supports consistent exhaust flow and contributes to the effectiveness of the overall aftertreatment system. This page provides application-specific details to assist with accurate identification of the Cummins QSB 6.7L / ISB SCR Filter OEM 5418022 for service and replacement needs.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2011 | Cummins | QSB 6.7L | ISB | |||
| 2012 | Cummins | QSB 6.7L | ISB | |||
| 2013 | Cummins | QSB 6.7L | ISB | |||
| 2014 | Cummins | QSB 6.7L | ISB | |||
| 2015 | Cummins | QSB 6.7L | ISB | |||
| 2016 | Cummins | QSB 6.7L | ISB | |||
| 2017 | Cummins | QSB 6.7L | ISB | |||
PEOPLE ALSO ASKS | BLOG(S)
How the Cummins QSB 6.7L / ISB SCR Filter Works (2011–2017, OEM 5418022)
The Cummins QSB 6.7L / ISB SCR Filter, OEM 5418022, is a key part of the engine’s emissions aftertreatment system used in 2011–2017 applications. Its job is to treat exhaust gases after combustion, helping reduce harmful emissions before the exhaust exits the vehicle or equipment.
This SCR filter is part of the Selective Catalytic Reduction (SCR) process, which is specifically designed to reduce nitrogen oxides (NOx)—one of the main regulated pollutants produced by diesel engines.
- Step 1: Exhaust flows into the aftertreatment system
- As the engine runs, exhaust gases move downstream through the emissions system. By the time exhaust reaches the SCR stage, it has already passed through earlier aftertreatment components (depending on configuration), such as a DOC and DPF.
- Step 2: DEF is introduced into the exhaust stream
- Upstream of the SCR filter, the system injects Diesel Exhaust Fluid (DEF). DEF is a urea-based fluid that reacts with heat in the exhaust. This converts DEF into ammonia, which is needed for the SCR chemical reaction.
- Step 3: Chemical reaction happens inside the SCR filter
- Inside the SCR filter is a catalyst-coated structure. As exhaust passes through it, the ammonia reacts with NOx gases. This reaction converts NOx into:
- Nitrogen (N₂)
- Water vapor (H₂O)
- Both are naturally occurring and much safer than NOx.
- Inside the SCR filter is a catalyst-coated structure. As exhaust passes through it, the ammonia reacts with NOx gases. This reaction converts NOx into:
- Step 4: Sensors help control the process
- The system relies on temperature and NOx readings to ensure the correct DEF amount is delivered and that the SCR reaction is happening efficiently. This keeps the system stable and prevents fault codes.
The Cummins SCR filter OEM 5418022 works by using DEF and catalyst chemistry to reduce NOx emissions, helping Cummins QSB 6.7L and ISB engines meet emissions requirements from 2011–2017.
You can prolong the lifespan of an SCR filter (SCR catalyst) by protecting it from DEF contamination, preventing DEF crystallization, and keeping the DEF dosing system and exhaust temperatures operating correctly. Since the SCR relies on chemical reactions to reduce NOx, the key is keeping the catalyst surface clean and active.
Best ways to extend SCR filter lifespan
- Use only high-quality DEF
- Always use DEF that meets ISO standards and comes from sealed containers. Low-quality DEF can contain minerals that permanently damage the SCR catalyst.
- Prevent DEF contamination
- Never mix DEF with water, fuel, coolant, or additives. Even small contamination can poison the catalyst and cause NOx efficiency failures.
- Store DEF properly
- Keep DEF sealed, clean, and stored in a cool environment. Heat and dirt degrade DEF and increase deposit formation.
- Avoid DEF crystallization
- DEF crystals form when DEF dries inside the doser/injector or exhaust piping. Ensure the injector isn’t leaking or dripping and that the system heats properly.
- Fix dosing problems early
- A weak DEF pump, clogged injector, failing doser valve, or damaged heated lines can cause under- or over-dosing, which accelerates SCR failure.
- Maintain proper exhaust temperatures
- Frequent short trips keep exhaust too cool for proper SCR function and can increase deposits. Regular steady driving helps keep the system in the correct operating range.
- Keep upstream emissions components healthy
- Problems with the DOC or DPF can affect exhaust flow and temperature, placing extra strain on the SCR and shortening its lifespan.
An SCR filter lasts longest when DEF quality is protected, crystallization is prevented, dosing stays accurate, and upstream emissions components are functioning properly.
Yes, SCR issues can trigger aftertreatment fault codes and warning lights.
Common signs include repeated aftertreatment warnings and high NOx sensor readings.
NOx sensors and exhaust temperature sensors commonly work with the SCR module.
Yes, it is often replaced without replacing the entire aftertreatment assembly.







































