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Cummins DOC : OEM 5287191RX

CUMMINS DOC : OEM 5287191RX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,810.53

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 5287191RX
PART TYPE DOC
BRAND
ENGINE MAKE Cummins
ENGINE TYPE
YEAR
PART NUMBER 102-0005

PRODUCT DESCRIPTION

This is a New, DOC, part number 102-0005 ( OEM Part Number 5287191RX ). This part is primarily made for a Cummins , and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM5287191RX
Additional OEM4965243, 4965243NX, 4965243RX, 5287191, 5287191NX, 5287191RX, A035G674, Q621301

ADDITIONAL DETAILS

CONDITIONNew
UPC / Barcode00840490538504
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.


Engineered for dependable service, the Cummins DOC: OEM 5287191RX ensures proper fit and reliable operation for compatible Cummins diesel engines. Built to original equipment specifications, this diesel oxidation catalyst is designed to reduce harmful emissions and support cleaner, more consistent engine performance. Its rugged construction provides durability in demanding environments, helping to extend the life of the exhaust system. Selecting an OEM component minimizes compatibility concerns and safeguards long-term reliability. This DOC offers a trusted solution for maintaining smooth operation and emissions compliance for Cummins-powered equipment.

PEOPLE ALSO ASKS | BLOG(S)

The Cummins X15 and X12 engine platforms depend on an advanced Diesel Particulate Filter (DPF), specifically the OEM 5579299RX, to manage soot emissions and support compliance with environmental standards.

This DPF is designed to trap harmful particulate matter produced during combustion. As soot accumulates, the filter activates a regeneration process—raising internal temperatures to burn off residue and maintain clear airflow through the exhaust system.

Key functions of the 5579299RX DPF include:

  • Capturing combustion particulates before they exit the tailpipe
  • Supporting regeneration cycles to sustain long-term filter efficiency
  • Minimizing strain on downstream sensors and aftertreatment parts
  • Ensuring proper fitment for X15 and X12 engines
  • Backed by OEM quality, often accompanied by mileage- or time-based warranties

This component is engineered specifically for medium- and heavy-duty diesel applications, making it a core part of emissions control. Proper DPF operation also contributes to smoother system balance and fewer exhaust-related disruptions over time.

Whether for single trucks or full fleets, maintaining a DPF like the 5579299RX helps keep vehicles compliant and the exhaust system working as intended.

A Diesel Oxidation Catalyst (DOC) is the first component in most diesel aftertreatment systems. It plays a key role in reducing harmful emissions by converting carbon monoxide and hydrocarbons into less harmful gases. Like any emissions component, a DOC doesn’t last forever.

Average Lifespan of a DOC

Under normal operating conditions, a DOC can last between 150,000 and 250,000 miles. However, this range can vary depending on how the vehicle is driven and maintained.

Factors That Impact DOC Longevity

Several elements influence how long a DOC will remain effective:

  • Driving conditions – Short trips and stop-and-go traffic may reduce its lifespan
  • Fuel quality – High-sulfur fuel can shorten catalyst efficiency
  • Engine health – Oil or coolant leaks can contaminate the DOC
  • Maintenance schedule – Skipping routine service can lead to early failure
  • DPF condition – A blocked filter downstream can increase backpressure and affect the DOC

A well-maintained DOC can last for many years. Routine inspections and avoiding upstream engine problems are essential for preserving its efficiency and meeting emissions standards.

Its primary role is to convert carbon monoxide and unburned hydrocarbons into less harmful gases.

Yes, a damaged DOC can lead to failed emissions inspections.

Yes, low-quality or contaminated fuel can cause premature DOC failure.

Removing the DOC is illegal and will cause emissions violations as well as engine fault codes.

Cummins DOCs

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