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Cummins Paccar PX7 DOC Filter 2014-2017: OEM 4353323

CUMMINS PACCAR PX7 DOC FILTER 2014-2017: OEM 4353323

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,495.00

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 NUMBER4353323
PART TYPEDOC Filter
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEPaccar PX7
YEAR2014-2017
PART NUMBER102-0091RM-SCR
APPLICATION NOTEST270
ADDITIONAL NOTESInlet Catalyst

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx DOC Filter, Tamerx part number 102-0091RM-SCR ( OEM Part Number 4353323 ). 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 Paccar PX7, production years 2014-2017, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: Inlet Catalyst

OEM NUMBERS

Primary OEM4353323
Additional OEM4353323, 5506057, A047V527

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490554474
WEIGHT88.00 LBS

SHIPPING OPTIONS

Ship Weight : 88.00 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.


Serving as a key component in the exhaust aftertreatment system, the Cummins Paccar PX7 DOC Filter (2014–2017) OEM 4353323 is designed to maintain proper diesel oxidation catalyst function. Built to meet original equipment specifications, it ensures precise compatibility with Cummins-powered Paccar PX7 engines within the specified model years. This DOC filter converts hydrocarbons and carbon monoxide in the exhaust stream into less harmful emissions, supporting cleaner operation and regulatory compliance. Diesel oxidation catalysts play an important role in reducing exhaust pollutants and maintaining overall aftertreatment efficiency. Constructed from durable, high-quality materials, it is engineered to withstand high temperatures and demanding diesel operating conditions for consistent, long-term reliability.

FITMENT CHART

YEARMAKEENGINE(S)
2014Cummins Paccar PX7
2015Cummins Paccar PX7
2016Cummins Paccar PX7
2017Cummins Paccar PX7

PEOPLE ALSO ASKS | BLOG(S)

The Cummins Paccar PX7 DOC Filter (OEM 4353323) is a key component that handles the first stage of exhaust treatment, making it essential for both emissions control and overall system balance. Used in 2014–2017 PX7 engines, it works by chemically processing exhaust gases before they move further through the aftertreatment system.

Unlike components that capture particles, the Diesel Oxidation Catalyst (DOC) is designed to initiate chemical reactions that clean up exhaust early in the process.

Here’s why this component is so important:

  • Breaks down harmful gases at the source
    • The DOC converts carbon monoxide (CO) and unburned hydrocarbons (HC) into less harmful substances like carbon dioxide and water vapor.
  • Serves as the entry point of emissions treatment
    • Positioned at the front of the system, it prepares exhaust gases before they reach components like the DPF and SCR.
  • Generates heat for downstream processes
    • The chemical reactions inside the DOC create heat, which helps support proper operation of other emissions components.
  • Improves overall system effectiveness
    • By reducing pollutants early, it allows the rest of the aftertreatment system to function more efficiently.
  • Helps maintain stable exhaust flow conditions
    • Proper DOC function ensures smooth movement of gases through the system without unnecessary restriction.
  • Supports compliance with emissions standards
    • It plays a direct role in helping the engine meet environmental requirements.

In simple terms, the Cummins 4353323 DOC filter acts as the starting point of exhaust cleanup, setting the stage for the rest of the system to reduce emissions effectively.

A Diesel Oxidation Catalyst (DOC) filter doesn’t always fail suddenly—most of the time, it shows warning signs as it becomes less effective. Recognizing these early indicators can help you avoid more serious issues within your emissions system.

As the DOC filter becomes contaminated or restricted, it can affect exhaust flow and overall system balance. Knowing what to look for makes it easier to determine when replacement is necessary.

Here are common signs that it may be time to replace your DOC filter:

  • Persistent warning lights or fault codes
    • If emissions-related alerts keep appearing even after resets or minor fixes, the DOC may no longer be functioning properly.
  • Excessive soot or visible buildup
    • Heavy contamination inside the filter can restrict airflow and reduce its ability to process exhaust gases.
  • Reduced engine responsiveness
    • A restricted DOC can create backpressure, making the engine feel less responsive during acceleration.
  • Increased fuel consumption
    • The engine may use more fuel as it compensates for inefficient exhaust flow.
  • Frequent issues with other emissions components
    • Problems with parts like the DPF or sensors can sometimes point back to a failing DOC.
  • Unusual exhaust behavior
    • Changes in exhaust smell, smoke, or temperature may indicate the DOC is no longer working effectively.

Catching these signs early can help prevent further damage to your emissions system. Replacing a worn DOC filter at the right time ensures proper exhaust flow and keeps your vehicle running efficiently.

This DOC filter reduces nitrogen oxide emissions by facilitating a chemical reaction between exhaust gases and ammonia generated from diesel exhaust fluid.

It works as part of a multi-stage system alongside DOC and DPF components, processing exhaust gases after initial filtration stages.

It is installed downstream of the DPF, where it completes the final stage of emissions treatment before exhaust gases exit the system.

It is commonly used in commercial trucks, including delivery, vocational, and regional haul vehicles equipped with Paccar PX7 engines.

Cummins DOC Filters