Cummins ISX15 SCR Outlet Catalyst Module 2014-2017: OEM 4388098
CUMMINS ISX15 SCR OUTLET CATALYST MODULE 2014-2017: OEM 4388098
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 4388098RM-SCR ( OEM Part Number 4388098 ). 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 | 4388098 |
| Additional OEM | 4388098 |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490557062 |
| 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.
Helping manage the final phase of exhaust treatment, the Cummins ISX15 SCR Outlet Catalyst Module (2014–2017) OEM 4388098 is an integral part of the diesel aftertreatment system. Manufactured according to original equipment specifications, it provides accurate fitment for Cummins ISX15 engines within the specified model years. This module processes exhaust gases through the selective catalytic reduction system, helping reduce nitrogen oxide (NOx) emissions before the treated gases exit the exhaust. Its robust construction is designed to endure elevated temperatures, vibration, and harsh conditions associated with heavy-duty diesel applications. Suitable for fleet maintenance and professional diesel service, this OEM SCR outlet catalyst module helps preserve proper emissions system function and dependable long-term operation.
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 4388098) is an aftertreatment device designed to help control harmful exhaust emissions. The OEM number 4388098 is identified as a Cummins aftertreatment component, making it part of the emissions-control system used to treat exhaust before it leaves the vehicle.
Within an SCR-equipped system, the catalyst works with Diesel Exhaust Fluid (DEF) and other aftertreatment components to reduce nitrogen oxide (NOx) emissions produced during diesel combustion.
What Does the Cummins 4388098 SCR Outlet Catalyst Module Do?
- Reduces harmful NOx emissions
- The SCR catalyst provides the surface where chemical reactions help transform nitrogen oxides into primarily nitrogen and water vapor.
- Works with the DEF system
- DEF introduced upstream ultimately produces ammonia, which reacts with NOx as exhaust passes through the SCR catalyst.
- Supports the final stages of exhaust treatment
- After upstream components handle other pollutants, the SCR catalyst focuses on reducing NOx before the exhaust exits the system.
- Works alongside aftertreatment sensors
- NOx and temperature sensors help the engine control system monitor operating conditions and determine whether SCR performance is within the expected range.
- Supports emissions compliance
- Effective SCR operation is important for keeping the engine's exhaust emissions within applicable regulatory requirements.
- Helps maintain dependable operation
- When the catalyst and surrounding aftertreatment components operate correctly, they can help prevent emissions-related fault codes, warning lights, and potential derates.
The Cummins ISX15 SCR Outlet Catalyst Module (OEM 4388098) plays an important role in turning engine exhaust into cleaner tailpipe emissions. By supporting NOx reduction and working together with the DEF dosing system and other aftertreatment components, it helps maintain efficient emissions control and reliable engine operation.
Because available listings identify 4388098 more generally as a Cummins aftertreatment device, exact ISX15 and 2014–2017 fitment should be confirmed using the engine serial number before replacement.
An SCR Outlet Catalyst Module usually doesn't have a fixed replacement interval. It is designed for long-term service and should generally be replaced only when testing confirms that the catalyst is damaged, contaminated, or no longer reducing NOx emissions effectively.
Replacing the module based on mileage alone can be unnecessary. Instead, watch for these signs that replacement may be needed:
- Persistent SCR efficiency fault codes
- If catalyst-related codes repeatedly return after other SCR components have been checked, the module may have lost efficiency.
- Poor NOx conversion
- Diagnostic testing that shows consistently high downstream NOx levels despite correct DEF dosing can indicate catalyst deterioration.
- Physical damage
- A cracked, melted, or severely damaged catalyst substrate typically requires replacement.
- Severe contamination
- Oil, coolant, excessive soot, or other contaminants can poison or damage the catalyst material beyond recovery.
- Repeated engine derates
- Persistent SCR faults that lead to reduced-power conditions may indicate a catalyst problem, especially after sensors and DEF components have been ruled out.
- Failed emissions testing
- If the system cannot maintain the required emissions performance and diagnostics identify the catalyst as the cause, replacement may be necessary.
- SCR problems remain after related repairs
- If the NOx sensors, DEF injector, wiring, exhaust system, and other related components are operating correctly but SCR efficiency remains poor, the outlet catalyst should be evaluated for replacement.
Before installing a new SCR Outlet Catalyst Module, identify and correct the original cause of failure. DEF dosing problems, contaminated DEF, oil or coolant consumption, exhaust leaks, and sensor faults can damage a replacement catalyst if they aren't corrected first.
Because 4388098 is a catalyst-based aftertreatment device rather than simply a soot filter, conventional DPF cleaning should not automatically be treated as a repair for catalyst deterioration.
Yes, the catalyst inside 4388098 can lose emissions-conversion effectiveness even when its external housing appears physically intact.
Abnormally high exhaust temperatures can thermally degrade the catalyst material inside OEM 4388098 even when obvious external damage is absent.
Yes, unresolved engine faults that alter exhaust composition or temperature can expose the 4388098 aftertreatment device to conditions that shorten its service life.
Cummins SCR Outlet Catalyst Modules
