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Cummins ISX DOC : OEM 2888250RX

CUMMINS ISX DOC : OEM 2888250RX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,595.00

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 2888250RX
PART TYPE DOC
BRAND
ENGINE MAKE Cummins
ENGINE TYPE ISX
YEAR
PART NUMBER 102-0031

PRODUCT DESCRIPTION

This is a New, DOC, part number 102-0031 ( OEM Part Number 2888250RX ). 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 OEM2888250RX
Additional OEM2871496, 2070750014, 2871496NX, 2871496RX, 2880317, 2880317NX, 2880317RX, 2888250, 2888250NX, 2888250RX, 58016, A029L164, A030W859, C0076-ID, C0076ID, C076-ID, C076ID, C20-0019, C200019, D-CEXH-XN0509-K, DCEXHXN0509K, Q629377

ADDITIONAL DETAILS

CONDITIONNew
UPC / Barcode00840490538726
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.


Enhance emission control and engine performance with the Cummins ISX Diesel Oxidation Catalyst — OEM 2888250RX. Meticulously engineered to neutralize harmful exhaust pollutants and improve combustion efficiency, this premium DOC delivers cleaner exhaust flow, smoother throttle response, and long-lasting reliability, even under demanding conditions. Crafted to match exact OEM specifications, it ensures a hassle-free swap and long-term durability—making it the go-to upgrade for keeping your ISX engine running clean, compliant, and strong—mile after mile.

PEOPLE ALSO ASKS | BLOG(S)

Maintaining a clean and efficient aftertreatment system begins with the Diesel Oxidation Catalyst (DOC), and the OEM 2888250RX is engineered precisely for that role in Cummins ISX engines. By efficiently converting harmful emissions early in the exhaust stream, this genuine OEM component sets the stage for cleaner operation, smoother regeneration cycles, and enhanced protection for downstream parts.

  • Converts carbon monoxide and hydrocarbons into cleaner, less harmful compounds right at the engine’s exit point, reducing the load on downstream components and improving overall exhaust quality.

  • Helps ensure consistent temperatures and clean airflow, which are key to effective DPF regeneration—meaning fewer forced regens, minimized downtime, and improved system reliability.

  • Shields critical aftertreatment parts—such as particulate filters, SCR units, and sensors—from premature exposure to soot and contaminants, extending their service life.

  • Fits seamlessly with Cummins ISX applications due to exact OEM specification, allowing for straightforward installation and rapid return to service—no modifications or adjustments needed.

  • Backed by warranty protection and supported by an easy core return process, this DOC provides confidence in durability and keeps maintenance efficient and cost-effective.

Starting your aftertreatment process with the right component matters. The OEM 2888250RX DOC ensures cleaner exhaust chemistry, smoother system function, and better protection for key downstream parts. Trust Tamerx Diesel Parts for genuine OEM quality that supports lasting engine health and cleaner emissions control.

The Diesel Oxidation Catalyst (DOC) is a key component in diesel aftertreatment systems, responsible for reducing carbon monoxide, hydrocarbons, and some particulate matter in exhaust gases. Over time, contaminants can build up inside the DOC, impacting its effectiveness. Proper maintenance and cleaning are critical to extending the DOC's lifespan and maintaining engine efficiency. But are there specific methods that work best?

Recommended Cleaning Methods for DOC

Cleaning a DOC requires attention to the type of buildup and condition of the unit. The following methods are commonly recommended by technicians and manufacturers:

  • Thermal Cleaning (Baking Method)
    The DOC is heated in a specially designed oven to burn off accumulated soot and hydrocarbons. This is one of the most effective ways to restore flow efficiency.

  • Pneumatic Cleaning (Air Knife Method)
    High-pressure air is used to dislodge ash and soot from the internal substrate. Often used as a pre-cleaning step before thermal treatment.

  • Ultrasonic Cleaning
    This process uses high-frequency sound waves in a cleaning solution to remove fine debris and contaminants. It is less common but highly effective for delicate units.

  • Chemical Soaking
    DOC units can be submerged in specialized non-corrosive cleaning solutions to break down stubborn residue. This method should always be followed by a thorough rinse and dry.

  • Inspection and Flow Testing Post-Cleaning
    After cleaning, technicians should inspect for cracks, damage, or melting and verify flow rates to ensure the DOC has been properly restored.


Regular cleaning of your DOC using manufacturer-approved methods can prevent buildup, maintain fuel economy, and reduce costly replacements. Whether using thermal, pneumatic, or chemical methods, it's essential to ensure proper handling and testing. If you're unsure which method to use, consulting with a diesel service professional is the safest path to keeping your emission system running smoothly.

Unchecked degradation can lead to emission noncompliance and stress on downstream systems.

Oil, soot, or coolant contamination can coat the catalyst surface, drastically reducing its effectiveness.

Low-temperature operation, frequent idling, or pollutant-laden exhaust flow accelerates wear.

Discoloration, soot around the housing, or melt patterns can point to internal overheating or deactivation.

Cummins DOCs

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