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Cummins ISX12G, ISLG DOC Filter 2013-2020: OEM 4328983

CUMMINS ISX12G, ISLG DOC FILTER 2013-2020: OEM 4328983

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,850.00

CORE CHARGE:

$1,500.00
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 NUMBER4328983
PART TYPEDOC Filter
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEISX12G, ISLG
YEAR2013-2020
PART NUMBER4328983RM-SCR
APPLICATION NOTESTier 4
ADDITIONAL NOTESOutlet Catalyst

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx DOC Filter, Tamerx part number 4328983RM-SCR ( OEM Part Number 4328983 ). 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 ISX12G, ISLG, production years 2013-2020, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: Outlet Catalyst

OEM NUMBERS

Primary OEM4328983
Additional OEM4328983, A045C197

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490553514
WEIGHT34.00 LBS

SHIPPING OPTIONS

Ship Weight : 34.00 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.


Built for 2013–2020 Cummins ISX12G and ISLG engines, the Cummins ISX12G, ISLG DOC Filter (OEM 4328983) is an essential part of the diesel exhaust aftertreatment system. This Diesel Oxidation Catalyst (DOC) filter works to reduce hydrocarbons and carbon monoxide within the exhaust stream before gases exit the vehicle. Manufactured to meet original equipment specifications, it is designed for proper fitment and reliable integration with existing emissions components. The durable construction is intended to withstand high temperatures and demanding operating conditions commonly found in heavy-duty diesel environments. Replacing a worn or restricted DOC filter with the OEM 4328983 helps maintain proper exhaust system function and supports compliance with emissions regulations.

FITMENT CHART

YEARMAKEENGINE(S)
2013Cummins ISX12G ISLG
2014Cummins ISX12G ISLG
2015Cummins ISX12G ISLG
2016Cummins ISX12G ISLG
2017Cummins ISX12G ISLG
2018Cummins ISX12G ISLG
2019Cummins ISX12G ISLG
2020Cummins ISX12G ISLG

PEOPLE ALSO ASKS | BLOG(S)

The Cummins ISX12G, ISLG DOC Filter (Diesel Oxidation Catalyst), OEM 4328983, is an essential emissions component used in Cummins ISX12G and ISLG engines from 2013 to 2020. Its primary role is to begin the treatment of exhaust gases by converting harmful compounds into less harmful substances before they pass through the rest of the aftertreatment system.

Positioned at the front of the exhaust system, the DOC filter uses a catalyst-coated internal structure to trigger chemical reactions as exhaust gases flow through it.

What the Cummins ISX12G, ISLG DOC Filter Does

  • Converts hydrocarbons (HC)
    • into carbon dioxide and water vapor
  • Reduces carbon monoxide (CO)
    • present in the exhaust stream
  • Prepares exhaust gases for downstream components
    • such as the DPF
  • Supports emissions compliance
    • for natural gas engines
  • Maintains consistent exhaust flow
    • within the system

The DOC filter serves as the first stage of emissions treatment, helping condition exhaust gases before they move to additional components like the Diesel Particulate Filter (DPF) and SCR system. This ensures the entire aftertreatment system operates effectively.

For engines equipped with Cummins ISX12G and ISLG (2013–2020), the OEM 4328983 DOC filter plays a key role in reducing harmful emissions and supporting proper exhaust system function.

A Diesel Oxidation Catalyst (DOC) filter is responsible for converting harmful gases in a diesel engine’s exhaust into less harmful emissions. When the DOC filter becomes contaminated or restricted, it can affect how the entire emissions system functions. Recognizing the warning signs early can help prevent more serious issues.

One of the first signs is often a warning light on the dashboard. Since the DOC is part of the emissions system, onboard diagnostics can quickly detect when something is not operating correctly.

Common signs of a bad DOC filter include:

  • Check engine or emissions warning light
    • illuminated
  • Stronger or unusual exhaust odor
    • from the tailpipe
  • Excessive exhaust smoke
    • compared to normal operation
  • Restricted exhaust flow
    • due to internal buildup
  • Diagnostic trouble codes
    • related to the aftertreatment system

Drivers may also notice changes in how the vehicle runs. A restricted DOC filter can disrupt exhaust flow, which may affect engine efficiency and overall operation.

If these symptoms appear, it’s important to run a diagnostic scan and inspect the exhaust system. Early detection can help prevent further damage and keep the emissions system working properly.

Cummins part number 4328983 is used as a diesel oxidation catalyst that processes exhaust gases early in the aftertreatment system.

The DOC stage converts certain exhaust gases through oxidation before they reach downstream emissions components.

The filter targets hydrocarbons and carbon monoxide present in the exhaust stream.

It helps regulate exhaust gas flow and temperature before gases enter the rest of the aftertreatment system.

Cummins DOC Filters