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Cummins DOC : OEM 5287496RX

CUMMINS DOC : OEM 5287496RX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,429.64

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 5287496RX
PART TYPE DOC
BRAND
ENGINE MAKE Cummins
ENGINE TYPE
YEAR
PART NUMBER 102-0028

PRODUCT DESCRIPTION

This is a New, DOC, part number 102-0028 ( OEM Part Number 5287496RX ). 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 OEM5287496RX
Additional OEM4965228, 4965228NX, 4965228RX, 4965284, 4965284NX, 4965284RX, 5287496, 5287496NX, 5287496RX, A035H295, Q621275, Q621300

ADDITIONAL DETAILS

CONDITIONNew
UPC / Barcode00840490538702
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.


Revitalize exhaust performance with the Cummins DOC — OEM 5287496RX. Expertly engineered to neutralize harmful emissions and enhance combustion efficiency, this premium Diesel Oxidation Catalyst delivers cleaner exhaust flow, smoother engine operation, and long-lasting performance under the toughest conditions. Built to meet precise OEM standards, it ensures hassle-free installation and dependable durability—an essential upgrade for keeping your engine compliant, powerful, and road-ready, mile after mile.

PEOPLE ALSO ASKS | BLOG(S)

Your aftertreatment system’s longevity hinges on the quality of exhaust gases entering the DPF and SCR components—and that begins with the Diesel Oxidation Catalyst. The OEM 5287496RX DOC (Diesel Oxidation Catalyst) is engineered to Cummins standards, delivering precise emissions conversion to help shield downstream parts, sustain efficient regeneration, and keep your system running clean and dependable.

  • Converts harmful exhaust gases—like carbon monoxide and unburnt hydrocarbons—into less offensive compounds, lowering strain on sensitive aftertreatment components.

  • Enhances DPF performance by providing cleaner, oxygen-rich exhaust, which supports controlled and balanced regeneration cycles.

  • Safeguards downstream parts—including NOx sensors and SCR catalysts—from exposure to soot and additional contaminants that can degrade system performance.

  • Precise OEM fitment tailored to Cummins specifications ensures clean, hassle-free installation without the need for adjustments or guesswork.

  • Backed by a robust warranty and streamlined core return process, the OEM 5287496RX offers peace of mind and efficient servicing.

Installing the OEM 5287496RX DOC isn’t just a part swap—it’s an essential measure for optimizing your aftertreatment system’s health. With cleaner exhaust, better regeneration consistency, and longer-lasting downstream components, Tamerx Diesel Parts provides OEM-quality assurance where it matters most.

The Diesel Oxidation Catalyst (DOC) is a vital part of a diesel engine’s emission system. It helps reduce harmful gases like hydrocarbons and carbon monoxide before they exit the exhaust. While it’s easy to overlook this component, neglecting regular DOC maintenance can have serious consequences that affect engine performance, emissions compliance, and overall system reliability.

Impact of Ignoring DOC Maintenance

Failing to properly maintain the DOC can lead to a range of mechanical and environmental issues, including:

  • Increased Emissions
    A clogged or degraded DOC loses its ability to effectively oxidize pollutants, leading to higher emissions of hydrocarbons and carbon monoxide.

  • Engine Warning Lights or DTCs
    An obstructed DOC can trigger fault codes and dash warning lights related to exhaust temperature, aftertreatment efficiency, or DPF regeneration issues.

  • Compromised DPF Function
    Since the DOC initiates the oxidation of soot, a malfunctioning unit can lead to incomplete DPF regeneration, faster clogging, and potential DPF damage.

  • Reduced Fuel Efficiency
    Backpressure caused by a plugged DOC can increase engine workload, causing higher fuel consumption and reduced performance.

  • Costly Repairs and Downtime
    Continued neglect may result in complete DOC failure, requiring expensive replacement and extended vehicle downtime.

  • Regulatory Non-Compliance
    For fleet and commercial vehicles, a failed DOC can lead to emissions violations, fines, or failed inspections depending on state or federal regulations.

Routine DOC inspection and maintenance—such as during DPF service intervals—is essential for preserving aftertreatment efficiency and ensuring long-term engine reliability. Neglecting this part of the system can result in escalating problems, from higher fuel costs to full system failure. Investing time in DOC maintenance pays off in cleaner emissions, fewer repairs, and consistent vehicle performance.

Decreased oxidation efficiency, elevated tailpipe emission levels, or higher exhaust temperatures can indicate performance loss.

 

Exhaust backpressure increases, reducing engine efficiency and potentially leading to overheating or derating.

Monitoring inlet and outlet temperatures or using diagnostic tools that measure oxidation activity can indicate module health.

Maintaining clean exhaust input and ensuring no contamination reaches the catalyst helps maintain its function.

Cummins DOCs

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