
Cummins ISB 6.7L SCR Outlet Catalyst Module 2013-2018: OEM 4388435RM-SCR
CUMMINS ISB 6.7L SCR OUTLET CATALYST MODULE 2013-2018: OEM 4388435RM-SCR

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 4388435RM-SCR ( OEM Part Number 4388435RM-SCR ). 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 2013-2018, and comes with a One Million Miles or One Year Warranty.
OEM NUMBERS
| Primary OEM | 4388435RM-SCR |
| Additional OEM | 4388291, 4388435, 4388435RM-SCR |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490555068 |
| WEIGHT | 80.00 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 proper aftertreatment function with this Cummins ISB 6.7L SCR Outlet Catalyst Module for 2013–2018 applications. OEM 4388435RM-SCR helps process exhaust gases within the SCR system to support proper emissions control and dependable system operation. A practical replacement for a damaged, restricted, or failing outlet catalyst module in compatible Cummins ISB 6.7L engines.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2013 | Cummins | ISB 6.7L | ||||
| 2014 | Cummins | ISB 6.7L | ||||
| 2015 | Cummins | ISB 6.7L | ||||
| 2016 | Cummins | ISB 6.7L | ||||
| 2017 | Cummins | ISB 6.7L | ||||
| 2018 | Cummins | ISB 6.7L | ||||
PEOPLE ALSO ASKS | BLOG(S)
Inside an SCR aftertreatment system, exhaust must pass efficiently through the catalyst while maintaining sufficient contact with the catalyst material for treatment to occur. The Cummins ISB 6.7L SCR Outlet Catalyst Module 2013-2018: OEM 4388435RM-SCR provides a structured exhaust passage designed for this process, making internal flow and catalyst condition important considerations when selecting a replacement module.
- OEM 4388435RM-SCR is intended for compatible 2013-2018 Cummins ISB 6.7L applications.
- Structured catalyst channels provide a controlled path for exhaust gases traveling through the SCR outlet module.
- Large catalyst surface area allows exhaust to interact with the catalyst material as it passes through the internal substrate.
- Consistent internal passages help maintain exhaust movement without unnecessary restriction from a damaged or deteriorated catalyst.
- Application-specific module dimensions match the intended layout of compatible Cummins ISB 6.7L aftertreatment systems.
- Durable catalyst and housing construction withstands the heat, vibration, and exhaust exposure encountered during normal diesel operation.
- Replacement restores the catalyst pathway when the original module becomes physically damaged, contaminated, or excessively restricted.
The Cummins ISB 6.7L SCR Outlet Catalyst Module OEM 4388435RM-SCR combines an application-specific exhaust pathway with the catalyst surface needed for SCR exhaust treatment. For customers searching for a Cummins ISB 6.7L SCR catalyst, SCR outlet module, diesel SCR catalyst replacement, or OEM 4388435RM-SCR, this module provides a practical replacement for maintaining the intended exhaust flow through the catalyst.
Restricted exhaust flow can be a sign that an SCR Outlet Catalyst Module has accumulated deposits, contamination, or internal damage. Because similar symptoms can come from other aftertreatment components, proper diagnosis is important before determining that the module itself is clogged.
- Reduced engine power: Excessive exhaust restriction may make the engine feel sluggish, especially under load.
- Engine derate: A severe aftertreatment fault or restriction may eventually trigger reduced-power operation.
- Check engine light: SCR efficiency, exhaust pressure, or related aftertreatment faults can activate the warning light.
- Abnormal exhaust backpressure: Higher-than-specified pressure readings may indicate a restriction somewhere in the exhaust system.
- SCR system warnings: Dashboard messages may appear when the ECM detects abnormal aftertreatment performance.
- Visible deposits: DEF crystallization or other deposits around the module and nearby exhaust components may indicate a problem requiring further inspection.
- Recurring fault codes: SCR-related codes that return after being cleared can point to an unresolved restriction, sensor issue, DEF dosing problem, or catalyst fault.
Confirming a clogged SCR Outlet Catalyst Module usually requires diagnostic codes, pressure and sensor data, and a physical inspection of the aftertreatment system. Checking the DEF injector, sensors, exhaust piping, and related components can help locate the actual restriction before cleaning or replacement is considered.
Check the DEF doser, NOx sensors, temperature sensors, wiring, exhaust connections, and related aftertreatment components.
Yes. Exhaust leaks can affect sensor readings and disrupt proper SCR system operation.
Yes. The module works with DEF dosing to support the chemical process that reduces NOx emissions.
Yes. Repeated excessive exhaust temperatures can deteriorate or physically damage the catalyst material.































