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Cummins QSX15 SCR Outlet Catalyst Module 2024-2027: OEM A066S001

CUMMINS QSX15 SCR OUTLET CATALYST MODULE 2024-2027: OEM A066S001

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$8,995.00

CORE CHARGE:

$1,000.00
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 NUMBERA066S001
PART TYPESCR Outlet Catalyst Module
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEQSX15
YEAR2024-2027
PART NUMBERA066S001
APPLICATION NOTESX15 Industrial QSX

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR Outlet Catalyst Module, Tamerx part number A066S001 ( OEM Part Number A066S001 ). 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 QSX15, production years 2024-2027, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEMA066S001
Additional OEMA066S001

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490555815
WEIGHT83.00 LBS

SHIPPING OPTIONS

Ship Weight : 83.00 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.


Meet the demands of advanced emissions systems with the Cummins QSX15 SCR Outlet Catalyst Module 2024–2027 (OEM A066S001). Designed specifically for Cummins QSX15 engines, this module helps support efficient exhaust gas treatment during the final stage of the SCR process. Manufactured to meet OEM specifications, it provides precise fitment and dependable compatibility for the listed model years. Installing the correct SCR outlet catalyst module helps maintain reliable emissions control, smooth aftertreatment operation, and long-term system performance.

FITMENT CHART

YEARMAKEENGINE(S)
2024Cummins QSX15
2025Cummins QSX15
2026Cummins QSX15
2027Cummins QSX15

PEOPLE ALSO ASKS | BLOG(S)

The Cummins QSX15 SCR Outlet Catalyst Module 2024-2027: OEM A066S001 is designed to provide a factory-matched replacement for the outlet section of the SCR aftertreatment system. Built to OEM specifications, this module is engineered for proper installation and compatibility, making it an ideal choice when replacing a worn or damaged catalyst module.

  • OEM A066S001 fits Cummins QSX15 engines from 2024-2027
  • Designed for the outlet section of the selective catalytic reduction (SCR) system
  • OEM-engineered for accurate fit, alignment, and secure installation
  • Compatible with the original factory exhaust aftertreatment assembly
  • Heavy-duty construction built for commercial diesel applications
  • Direct replacement designed to restore the original system configuration

The Cummins QSX15 SCR Outlet Catalyst Module OEM A066S001 is a dependable replacement component for maintaining the proper configuration of your emissions system. Tamerx Diesel Parts supplies quality OEM-fit aftertreatment components trusted by truck owners and repair professionals for reliable performance and long-term durability.

The SCR Outlet Catalyst Module is an important part of the Selective Catalytic Reduction (SCR) system, helping monitor and support the reduction of nitrogen oxide (NOx) emissions. When the module begins to fail, it can affect emissions performance, trigger fault codes, and reduce overall engine efficiency. Recognizing the symptoms early can help prevent more serious aftertreatment issues.

  • An illuminated check engine light is one of the most common signs, often accompanied by SCR or catalyst efficiency fault codes.
  • An SCR or emissions system warning message may appear on the dashboard.
  • Reduced engine power or engine derate mode may activate if the system detects poor SCR performance.
  • Increased Diesel Exhaust Fluid (DEF) consumption can occur as the system attempts to compensate for reduced catalyst efficiency.
  • Failed emissions testing may result if the module is no longer effectively supporting NOx reduction.
  • Recurring fault codes related to NOx sensors, temperature sensors, or SCR efficiency may indicate an issue with the outlet catalyst module.
  • Reduced overall engine efficiency or inconsistent aftertreatment performance may become noticeable during operation.

A failing SCR Outlet Catalyst Module can impact both emissions compliance and vehicle performance. Prompt diagnosis and repair help restore proper SCR operation, prevent additional damage to the aftertreatment system, and keep the engine running efficiently.

Yes, faulty injectors can increase soot production and contaminate the aftertreatment system. Addressing fuel system problems early helps protect the catalyst.

Related components such as NOx sensors, DEF injectors, exhaust piping, and wiring should also be inspected. Identifying the root cause helps prevent repeat failures.

Yes, prolonged exposure to moisture, road debris, and corrosive environments can affect the external housing. Routine inspections help identify damage before it becomes severe.

The catalyst itself requires little direct maintenance, but the emissions system should be inspected regularly. Maintaining the engine and DEF system helps maximize catalyst life.

Cummins SCR Outlet Catalyst Modules