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Cummins ISX15 SCR Outlet Catalyst Module 2011-2014: OEM 4329020

CUMMINS ISX15 SCR OUTLET CATALYST MODULE 2011-2014: OEM 4329020

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$5,995.00

CORE CHARGE:

$500.00
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.

AVAILABILITY IN STOCK
OEM NUMBER4329020
PART TYPESCR Outlet Catalyst Module
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEISX15
YEAR2011-2014
PART NUMBER4329020RM-SCR
APPLICATION NOTESEPA10

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR Outlet Catalyst Module, Tamerx part number 4329020RM-SCR ( OEM Part Number 4329020 ). 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 2011-2014, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM4329020
Additional OEM2871707, 2871782, 4329020

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490555914
WEIGHT90.00 LBS

SHIPPING OPTIONS

Ship Weight : 90.00 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.


Put your aftertreatment system back on track with the Cummins ISX15 SCR Outlet Catalyst Module 2011–2014 (OEM 4329020). Made for compatible Cummins ISX15 applications, this SCR outlet catalyst module helps reduce NOx emissions as exhaust passes through the SCR system. Manufactured to OEM specifications, it provides accurate fitment and dependable compatibility across the listed model years. Replacing a worn or failing module helps maintain proper exhaust treatment, consistent emissions control, and reliable aftertreatment operation.

FITMENT CHART

YEARMAKEENGINE(S)
2011Cummins ISX15
2012Cummins ISX15
2013Cummins ISX15
2014Cummins ISX15

PEOPLE ALSO ASKS | BLOG(S)

The Cummins ISX15 SCR Outlet Catalyst Module 2011-2014 OEM 4329020 is designed to help maintain smooth exhaust gas movement through the final section of the Selective Catalytic Reduction (SCR) system. A common topic searched by diesel owners is how catalyst flow affects the efficiency of the emissions system. Replacing a worn outlet catalyst module with the correct OEM component helps preserve proper exhaust routing and dependable aftertreatment operation.

  • OEM 4329020 is manufactured for 2011-2014 Cummins ISX15 engine applications, ensuring OEM-style fit and compatibility.
  • Supports the final stage of the SCR aftertreatment process, helping exhaust gases pass through the catalyst as intended.
  • Designed to maintain consistent exhaust flow, allowing the emissions system to operate efficiently during normal driving conditions.
  • Constructed with durable, heat-resistant catalyst materials built to withstand continuous exposure to high exhaust temperatures.
  • Direct-fit design simplifies installation, matching factory mounting locations and exhaust connections.
  • Works seamlessly with the original aftertreatment assembly, helping maintain proper integration with surrounding emissions components.
  • Built for long-lasting durability, making it a dependable replacement for restoring the function of the SCR outlet catalyst module.

The Cummins ISX15 SCR Outlet Catalyst Module 2011-2014 OEM 4329020 is an excellent replacement for maintaining reliable exhaust aftertreatment performance. Its OEM-quality construction, precise fit, and durable catalyst design help support efficient emissions control while keeping your diesel exhaust system operating as intended.

Changes in the performance of your emissions system can often be the first indication that an SCR Outlet Catalyst Module is beginning to fail. Since this component plays a key role in monitoring and supporting the Selective Catalytic Reduction (SCR) system, a malfunction can lead to warning lights, reduced efficiency, and other drivability concerns if not addressed promptly.

  • The check engine light or SCR warning light may illuminate when the module detects a fault.
  • Engine derate or reduced power mode can be activated to help maintain emissions compliance.
  • Recurring diagnostic trouble codes related to SCR efficiency, NOx sensors, or catalyst performance are common indicators.
  • Increased Diesel Exhaust Fluid (DEF) consumption may occur if the SCR system is not operating correctly.
  • Failed emissions inspections can result from reduced NOx conversion efficiency.
  • Frequent aftertreatment system warnings or repeated fault resets may indicate an underlying catalyst module issue.
  • Reduced fuel efficiency or sluggish engine response can develop as the engine compensates for emissions system faults.

Recognizing the symptoms of a failing SCR Outlet Catalyst Module early can help prevent more extensive aftertreatment repairs and unnecessary downtime. Timely diagnosis and replacement, when needed, help restore proper SCR system operation, maintain emissions compliance, and support dependable engine performance.

Yes. Road debris, improper handling, or impact can damage the housing or internal catalyst substrate. Visible dents or unusual rattling should be investigated.

Repeated thermal cycling, excessive exhaust temperatures, vibration, or physical shock can contribute to internal substrate damage. Cracking can interfere with normal exhaust treatment.

Yes. EGR problems can change engine-out emissions and place different demands on the aftertreatment system. Engine-related faults should therefore be corrected when diagnosing repeated SCR problems.

DEF with an incorrect concentration can interfere with proper SCR operation and lead to efficiency-related faults. Testing the DEF can help rule out fluid quality as the source of the problem.

Cummins SCR Outlet Catalyst Modules