Cummins ISX15 SCR Outlet Catalyst Module 2014-2017: OEM 4354168
CUMMINS ISX15 SCR OUTLET CATALYST MODULE 2014-2017: OEM 4354168
ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY
WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured Tamerx SCR Outlet Catalyst Module, Tamerx part number 4354168RM-SCR ( OEM Part Number 4354168 ). 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 ISX15, production years 2014-2017, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
OEM NUMBERS
| Primary OEM | 4354168 |
| Additional OEM | 4354167, 4354168 |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490557147 |
| WEIGHT | 102.00 LBS |
SHIPPING OPTIONS
Ship Weight : 102.00 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.
Providing a crucial finishing point in the exhaust emissions process, the Cummins ISX15 SCR Outlet Catalyst Module (2014–2017) OEM 4354168 helps ensure treated gases move properly through the aftertreatment system. Made to original equipment specifications, it offers accurate fitment for Cummins ISX15 engines within the specified model years. This module supports the selective catalytic reduction process by assisting with the conversion of nitrogen oxide (NOx) emissions into less harmful compounds before exhaust exits the system. Built with durable materials, it is suited for exposure to high exhaust temperatures, vibration, and rigorous heavy-duty diesel operating conditions. Suitable for fleet maintenance and professional diesel repair applications, this OEM SCR outlet catalyst module helps maintain proper emissions system operation and dependable service life.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2014 | Cummins | ISX15 | ||||
| 2015 | Cummins | ISX15 | ||||
| 2016 | Cummins | ISX15 | ||||
| 2017 | Cummins | ISX15 | ||||
PEOPLE ALSO ASKS | BLOG(S)
The Cummins ISX15 SCR Outlet Catalyst Module (OEM 4354168) is an important component of the engine’s exhaust aftertreatment system. OEM 4354168 is identified as a Cummins aftertreatment device and is also cross-referenced as an SCR component for Cummins applications.
Its primary purpose is to support the Selective Catalytic Reduction (SCR) process, helping reduce harmful nitrogen oxide (NOx) emissions before treated exhaust is released from the vehicle.
What Does the Cummins 4354168 SCR Outlet Catalyst Module Do?
- Reduces NOx emissions
- The SCR catalyst provides a surface where chemical reactions convert harmful nitrogen oxides into primarily nitrogen and water vapor.
- Works with Diesel Exhaust Fluid (DEF)
- DEF introduced upstream ultimately produces ammonia, which reacts with NOx as the exhaust passes through the SCR catalyst.
- Handles a critical stage of exhaust treatment
- The module helps complete the emissions-cleaning process after exhaust has traveled through other aftertreatment components.
- Supports proper emissions performance
- Effective SCR operation helps the ISX15 maintain the emissions levels expected by the engine’s electronic control system.
- Works alongside sensors and controls
- NOx sensors, temperature sensors, and the engine control system monitor conditions surrounding the SCR process and can detect poor emissions-conversion efficiency.
- Helps prevent emissions-related operating problems
- When SCR performance falls below acceptable levels, the engine may develop fault codes, warning lights, or potentially an emissions-related derate.
Why Is This Module Important?
The Cummins ISX15 SCR Outlet Catalyst Module (OEM 4354168) is important because it helps turn harmful NOx emissions into much less harmful substances before exhaust leaves the system. Keeping the SCR catalyst, DEF system, sensors, and surrounding aftertreatment components in good condition supports cleaner emissions and dependable engine operation.
Available parts information specifically identifies OEM 4354168 as an SCR-type component used with the Cummins ISX15, reinforcing its role within the engine’s emissions-control system.
An SCR Outlet Catalyst Module is an important component of a diesel engine’s aftertreatment system. It works as part of the Selective Catalytic Reduction (SCR) system to help reduce nitrogen oxide (NOx) emissions before exhaust gases leave the vehicle or equipment.
The module relies on proper exhaust temperatures and correctly dosed Diesel Exhaust Fluid (DEF) to perform effectively. Because it works alongside several other emissions components, problems elsewhere in the aftertreatment system can affect its operation and lifespan.
Here are some important things to know about an SCR Outlet Catalyst Module:
- It helps reduce NOx emissions
- The catalyst supports chemical reactions that convert harmful nitrogen oxides into less harmful nitrogen and water vapor.
- It depends on proper DEF dosing
- Too much, too little, or contaminated DEF can interfere with SCR operation and contribute to deposits or reduced catalyst efficiency.
- NOx sensors help monitor its performance
- Upstream and downstream NOx readings allow the engine control system to determine whether the SCR system is reducing emissions effectively.
- High temperatures can damage it
- Abnormally high exhaust temperatures can deteriorate, crack, or even melt the internal catalyst substrate.
- Engine problems can shorten its lifespan
- Excessive oil consumption, coolant leaks, faulty injectors, turbocharger problems, or excessive soot production can contaminate the catalyst.
- It usually isn't a routine replacement item
- An SCR Outlet Catalyst Module is generally replaced based on its condition and diagnostic results rather than at a predetermined mileage.
- Failure can lead to derates
- Persistent SCR efficiency problems may eventually cause some diesel engines to enter reduced-power or speed-limited operating modes.
Proper engine maintenance, clean DEF, correct DEF dosing, and prompt attention to emissions-related fault codes can help protect the SCR Outlet Catalyst Module and extend its service life.
OEM 4354168 is identified as a genuine Cummins aftertreatment device, with application listings specifically describing it as an SCR unit for the ISX15.
A Dinex SCR cross-referenced to Cummins 4354168 specifies stainless steel construction.
The stainless-steel housing should be checked for cracks, deformation, corrosion, and damaged connections that could compromise the integrity of the 4354168 SCR assembly.
Yes, internal catalyst damage can reduce the effectiveness of the 4354168 even when its exterior housing shows no obvious physical damage.
Cummins SCR Outlet Catalyst Modules
