Loading...

Cummins ISB 6.7L SCR Outlet Catalyst Module 2011-2016: OEM 4354073

CUMMINS ISB 6.7L SCR OUTLET CATALYST MODULE 2011-2016: OEM 4354073

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$4,995.00

CORE CHARGE:

$0.00
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.

AVAILABILITYIN STOCK
OEM NUMBER4354073
PART TYPESCR Outlet Catalyst Module
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEISB 6.7L
YEAR2011-2016
PART NUMBER4354073RM-SCR
WARRANTY
One Million Miles or One Year

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR Outlet Catalyst Module, Tamerx part number 4354073RM-SCR ( OEM Part Number 4354073 ). 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 ISB 6.7L, production years 2011-2016, and comes with a One Million Miles or One Year Warranty.

OEM NUMBERS

Primary OEM4354073
Additional OEM433174, 433175, 4354073, 5506101, A061A271

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490555044
WEIGHT80.00 LBS

SHIPPING OPTIONS

Ship Weight : 80.00 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 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, 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 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.


Restore confidence in your aftertreatment system with the Cummins ISB 6.7L SCR Outlet Catalyst Module 2011–2016 (OEM 4354073). This SCR outlet catalyst module plays a key role in reducing NOx emissions and supporting proper exhaust treatment in compatible Cummins ISB 6.7L applications. Manufactured to OEM specifications, it offers precise fitment and dependable compatibility across the listed model years. Replacing a worn or failing catalyst module helps maintain efficient emissions control, proper exhaust flow, and reliable aftertreatment operation.

FITMENT CHART

YEARMAKEENGINE(S)
2011Cummins ISB 6.7L
2012Cummins ISB 6.7L
2013Cummins ISB 6.7L
2014Cummins ISB 6.7L
2015Cummins ISB 6.7L
2016Cummins ISB 6.7L

PEOPLE ALSO ASKS | BLOG(S)

Reducing nitrogen oxide (NOx) emissions requires several aftertreatment components to work together throughout the exhaust system. The Cummins ISB 6.7L SCR Outlet Catalyst Module 2011-2016: OEM 4354073 serves an important role in the SCR process, providing a catalyst surface that supports the chemical reactions used to treat exhaust gases before they leave the system.

  • OEM 4354073 is intended for compatible 2011-2016 Cummins ISB 6.7L applications.
  • Supports NOx reduction within the SCR system, helping the aftertreatment assembly manage regulated diesel exhaust emissions.
  • Catalyst substrate provides an active reaction surface as treated exhaust gases travel through the module.
  • Outlet-position design allows the module to perform its function during a later stage of the SCR exhaust treatment process.
  • Heat-resistant construction is suited for the elevated temperatures routinely encountered within diesel aftertreatment systems.
  • Application-specific housing and connections help maintain proper alignment with compatible surrounding exhaust components.
  • Factory-style configuration makes OEM 4354073 a practical replacement when the original SCR outlet catalyst becomes damaged or no longer functions correctly.

For customers searching for a Cummins ISB 6.7L SCR catalyst, SCR outlet module, NOx catalyst, or OEM 4354073 replacement, selecting the correct component is essential for restoring the intended aftertreatment configuration. The Cummins ISB 6.7L SCR Outlet Catalyst Module 2011-2016 OEM 4354073 provides application-specific construction for maintaining this important stage of the diesel emissions system.

Diagnosing a faulty SCR Outlet Catalyst Module requires checking the catalyst along with the components that support the Selective Catalytic Reduction (SCR) system. Since NOx sensors, DEF delivery, exhaust temperature, and wiring problems can produce similar symptoms, a complete diagnostic process helps identify the actual cause before replacement.

  • Use a diagnostic scan tool to retrieve SCR efficiency, NOx, DEF system, and catalyst-related fault codes.
  • Compare upstream and downstream NOx sensor readings to determine whether the SCR catalyst is reducing NOx as expected.
  • Review exhaust temperature sensor data to confirm the catalyst is reaching the required operating temperatures.
  • Inspect the DEF injector and dosing system for improper spray patterns, crystallization, leaks, or restricted DEF flow.
  • Examine the SCR Outlet Catalyst Module for contamination, cracks, physical damage, or signs of excessive heat.
  • Check the exhaust system for leaks or restrictions that could interfere with sensor readings and catalyst operation.
  • Inspect wiring harnesses and electrical connectors associated with NOx sensors, temperature sensors, and other SCR components.

A thorough diagnostic inspection helps determine whether the SCR Outlet Catalyst Module itself has failed or another aftertreatment component is causing the problem. Identifying the root cause before replacement helps restore proper SCR operation, maintain emissions compliance, and prevent recurring system faults.

Common signs can include an emissions warning light, recurring SCR efficiency codes, increased DEF consumption, abnormal NOx readings, or an emissions-related derate. Other SCR components should be tested before assuming the catalyst has failed.

Yes. Excessive engine oil entering the exhaust can contaminate the catalyst surface and reduce its ability to convert NOx. The source of the oil contamination should be corrected before installing a replacement.

Yes. Improper DEF decomposition can create crystalline deposits that restrict catalyst passages and exhaust flow. Low exhaust temperatures and DEF dosing problems can contribute to this buildup.

SCR efficiency-related codes such as P20EE may appear when the control system detects insufficient NOx conversion. However, DEF dosing problems and faulty NOx sensors can produce similar symptoms, so complete diagnostics are important.

Cummins SCR Outlet Catalyst Modules