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Cummins ISX DOC : OEM 2888263RX

CUMMINS ISX DOC : OEM 2888263RX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,195.00

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 NUMBER 2888263RX
PART TYPE DOC
BRAND
ENGINE MAKE Cummins
ENGINE TYPE ISX
YEAR
PART NUMBER 102-0033

PRODUCT DESCRIPTION

This is a New, DOC, part number 102-0033 ( OEM Part Number 2888263RX ). This part is primarily made for a Cummins ISX, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM2888263RX
Additional OEM2601509, 2885941, 2885941NX, 2885941RX, 2888249, 2888263, 2888263NX, 2888263RX, 4965030, 4965317, 4969542, A030B835, A030K998, A030W858, A030X735, C0060ID, C0109-ID, C20-0028, DC2X0504, GESI503, Q620970, Q621430, Q621503, XN0504, XN0508

ADDITIONAL DETAILS

CONDITIONNew
UPC / Barcode00840490538771
WEIGHT44.00 LBS

SHIPPING OPTIONS

Ship Weight : 44.00 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.


Rev up compliance and functionality with the Cummins ISX Diesel Oxidation Catalyst — OEM 2888263RX. Designed as a direct-fit DOC for Cummins ISX engines, this high-quality replacement (by Denso) includes all essential gaskets and clamps for a hassle-free installation. It excels at reducing exhaust pollutants and boosting passive regeneration—helping your engine run cleaner, smoother, and more efficiently—all backed by a solid 3-year, unlimited-mileage warranty.

PEOPLE ALSO ASKS | BLOG(S)

The Diesel Oxidation Catalyst (DOC) is the first stage of emissions control in your Cummins ISX engine, making it one of the most important parts of the aftertreatment system. The OEM 2888263RX DOC is engineered to deliver durability, efficiency, and dependable operation, keeping your engine compliant and running smoothly.

  • Durable OEM Construction
    Designed with heavy-duty materials, this DOC is built to withstand high heat and pressure, ensuring long service life in demanding conditions.

  • Efficient Pollutant Conversion
    Converts harmful exhaust gases like hydrocarbons and carbon monoxide into less harmful compounds, providing cleaner emissions right from the start.

  • Supports Regeneration Cycles
    Helps maintain the correct exhaust temperatures and flow for smoother DPF regeneration, reducing the likelihood of forced maintenance events.

  • Seamless OEM Fit
    Manufactured to Cummins specifications, the 2888263RX installs directly without modifications, minimizing downtime and ensuring dependable performance.

  • Backed by Warranty
    Comes with warranty coverage for added peace of mind, giving you confidence in both reliability and long-term value.

The OEM 2888263RX DOC is more than just a replacement—it’s the foundation of your Cummins ISX emissions system. With its durable build, efficient exhaust treatment, and OEM precision, it ensures cleaner operation and dependable performance mile after mile.

A Diesel Oxidation Catalyst (DOC) filter is a critical part of a diesel engine's aftertreatment system. It helps reduce harmful emissions by converting carbon monoxide, hydrocarbons, and some particulate matter into less harmful gases. Understanding the lifespan of a DOC filter can help avoid unexpected breakdowns and keep your diesel system compliant with emissions standards.

Typical DOC  Lifespan Factors

  • Average Service Life
    Most DOC filters are designed to last between 200,000 to 400,000 miles or around 7 to 10 years, depending on usage and maintenance.

  • Driving Conditions
    Vehicles operating in urban areas with frequent stop-and-go traffic may experience quicker DOC degradation than those used in highway driving.

  • Engine and Fuel Quality
    Poor fuel quality or excessive engine oil consumption can lead to faster contamination and shorten the DOC’s effectiveness.

  • Lack of Regular Maintenance
    Skipping routine inspections or allowing buildup to go unchecked can reduce the DOC's efficiency and shorten its operational life.

  • Sensor and System Malfunctions
    Issues with upstream components like the EGR, DPF, or sensors can negatively affect the DOC, leading to premature failure.


While a DOC filter is built for longevity, its lifespan greatly depends on how the vehicle is maintained and operated. Regular servicing, clean fuel use, and monitoring warning signs can help your DOC perform at its best for years. Staying ahead of maintenance schedules ensures not only optimal engine performance but also compliance with emissions regulations.

Ensuring clean exhaust input, inspecting for contamination during aftertreatment servicing, and monitoring performance indicators are key maintenance steps.

It should undergo controlled, high-temperature burn-off or professional cleaning to remove soot without damaging the catalytic media.

Neglecting maintenance can lead to emissions failure and place undue stress on other aftertreatment components.

Contaminants like oil or soot can coat the catalyst, significantly reducing its oxidation capability.

Cummins DOCs

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