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Cummins QSB 6.7L Aftertreatment Device 2011-2020: OEM A048Y155

CUMMINS QSB 6.7L AFTERTREATMENT DEVICE 2011-2020: OEM A048Y155

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$3,850.00

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 NUMBERA048Y155
PART TYPEAftertreatment Device
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEQSB 6.7L
YEAR2011-2020
PART NUMBER4353964RM-AFD
APPLICATION NOTESTier 4

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Aftertreatment Device, Tamerx part number 4353964RM-AFD ( OEM Part Number A048Y155 ). 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 QSB 6.7L, production years 2011-2020, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEMA048Y155
Additional OEMA048Y155

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490556171
WEIGHT22.00 LBS

SHIPPING OPTIONS

Ship Weight : 22.00 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.


Support cleaner exhaust performance with the Cummins QSB 6.7L Aftertreatment Device 2011–2020 (OEM A048Y155). Designed specifically for Cummins QSB 6.7L engines, this integrated aftertreatment component helps manage emissions by supporting efficient exhaust gas processing. Manufactured to meet OEM specifications, it delivers precise fitment and dependable compatibility for the listed model years. Installing the correct aftertreatment device helps maintain reliable emissions control, smooth system operation, and long-term performance.

FITMENT CHART

YEARMAKEENGINE(S)
2011Cummins QSB 6.7L
2012Cummins QSB 6.7L
2013Cummins QSB 6.7L
2014Cummins QSB 6.7L
2015Cummins QSB 6.7L
2016Cummins QSB 6.7L
2017Cummins QSB 6.7L
2018Cummins QSB 6.7L
2019Cummins QSB 6.7L
2020Cummins QSB 6.7L

PEOPLE ALSO ASKS | BLOG(S)

The Cummins QSB 6.7L Aftertreatment Device 2011-2020: OEM A048Y155 is a complete emissions system assembly designed to simplify replacement by combining key aftertreatment components into one unit. Built to OEM specifications, it helps restore the original exhaust system configuration while providing dependable compatibility for Cummins QSB 6.7L engines.

  • OEM A048Y155 fits Cummins QSB 6.7L engines from 2011-2020
  • Complete aftertreatment device designed for integrated system replacement
  • Combines multiple emissions components into a single assembly
  • OEM-engineered for precise fit, factory connections, and easier installation
  • Heavy-duty construction built for demanding commercial diesel applications
  • Ideal replacement for damaged or aging aftertreatment assemblies

The Cummins QSB 6.7L Aftertreatment Device OEM A048Y155 is a dependable solution for restoring the original emissions system configuration. Tamerx Diesel Parts provides high-quality OEM-fit aftertreatment components trusted by truck owners and repair professionals for reliable service and long-lasting durability.

A properly functioning aftertreatment device helps control emissions while allowing the engine to operate efficiently. Components such as the Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), and Selective Catalytic Reduction (SCR) system work together to maintain exhaust flow and emissions performance. When one of these components develops a fault, it can indirectly affect fuel economy.

  • Restricted exhaust flow from a clogged DPF or DOC can make the engine work harder, increasing fuel consumption.
  • Frequent or failed regeneration cycles may use additional fuel as the system repeatedly attempts to remove soot buildup.
  • Faulty sensors can send inaccurate data to the engine control module, leading to inefficient engine adjustments.
  • Problems with the SCR system can affect overall engine operation, even though its primary role is emissions control.
  • Reduced engine performance or derate mode may require the engine to work less efficiently during normal driving.
  • Unresolved aftertreatment issues can place additional strain on related components, further reducing overall efficiency.
  • Check engine lights and emissions-related fault codes often indicate problems that should be addressed before fuel economy worsens.

While an aftertreatment device is not directly responsible for fuel economy, a malfunctioning system can reduce overall engine efficiency. Prompt diagnosis and regular maintenance help maintain proper emissions performance, improve fuel economy, and prevent costly repairs.

 

Yes, problems within the aftertreatment device can interfere with normal regeneration. This may result in more frequent or unsuccessful regeneration events.

The aftertreatment device processes exhaust gases before they leave the engine. This helps reduce harmful pollutants and maintain emissions compliance.

Yes, excessive soot accumulation can reduce the efficiency of the aftertreatment system. Addressing engine issues early helps prevent excessive soot buildup.

Common causes include excessive heat, contamination, soot accumulation, and unresolved engine problems. Lack of routine maintenance may also shorten its service life.

Cummins Aftertreatment Devices

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