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Cummins ISLG, ISX12G DOC Filter 2011-2020: OEM 4354000

CUMMINS ISLG, ISX12G DOC FILTER 2011-2020: OEM 4354000

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$6,995.00

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 NUMBER4354000
PART TYPEDOC Filter
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEISLG, ISX12G
YEAR2011-2020
PART NUMBER102-0347RM-DOC
APPLICATION NOTESTier 4

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx DOC Filter, Tamerx part number 102-0347RM-DOC ( OEM Part Number 4354000 ). 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 ISLG, ISX12G, production years 2011-2020, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM4354000
Additional OEM4354000, A049B346

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490554207
WEIGHT51.00 LBS

SHIPPING OPTIONS

Ship Weight : 51.00 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.


Bring dependable exhaust treatment to your system with the Cummins ISLG, ISX12G DOC Filter 2011–2020 (OEM 4354000). Designed for Cummins ISLG and ISX12G engines, this component helps process exhaust gases during the diesel oxidation catalyst stage. Manufactured to meet OEM requirements, it ensures proper fitment and reliable compatibility for the specified model years. Using the correct DOC filter helps maintain steady emissions system function and consistent operation.

FITMENT CHART

YEARMAKEENGINE(S)
2011Cummins ISLG ISX12G
2012Cummins ISLG ISX12G
2013Cummins ISLG ISX12G
2014Cummins ISLG ISX12G
2015Cummins ISLG ISX12G
2016Cummins ISLG ISX12G
2017Cummins ISLG ISX12G
2018Cummins ISLG ISX12G
2019Cummins ISLG ISX12G
2020Cummins ISLG ISX12G

PEOPLE ALSO ASKS | BLOG(S)

Keeping diesel exhaust systems working efficiently starts with the right components in place. The DOC (Diesel Oxidation Catalyst) filter is the first line of defense in reducing harmful emissions, treating exhaust gases as soon as they leave the engine. In Cummins ISLG and ISX12G applications, this component sets the stage for cleaner exhaust flow and supports the performance of the entire aftertreatment system.

  • Kickstarts the Emissions Cleanup Process
    The DOC filter is the first component exhaust gases pass through, beginning the process of breaking down harmful emissions right away.
  • Targets Harmful Gases at the Source
    It helps convert carbon monoxide and unburned hydrocarbons into less harmful compounds, reducing toxic output early in the exhaust cycle.
  • Boosts Efficiency of Downstream Components
    By conditioning exhaust gases, the DOC helps improve how the DPF and SCR systems function, supporting smoother overall operation.
  • Engineered for Cummins ISLG and ISX12G Engines
    Designed for 2011–2020 models, this unit fits seamlessly into the factory aftertreatment setup for proper integration.
  • Built for Continuous Heavy-Duty Operation
    With a durable, flow-through catalyst design, the DOC filter handles constant exhaust flow and high temperatures common in commercial diesel use.

The DOC filter plays a crucial role in maintaining a well-functioning emissions system from the very start. For Cummins ISLG and ISX12G engines, having the right DOC in place helps ensure cleaner exhaust, better system balance, and dependable performance day after day.

The Diesel Oxidation Catalyst (DOC) is designed to convert harmful exhaust gases such as carbon monoxide and hydrocarbons into less harmful emissions. For the DOC to function properly, the catalyst surface must remain clean and active. When fuel or oil contamination enters the exhaust system, it can significantly reduce the DOC’s efficiency and lead to long-term damage.

  • Oil contamination can coat the catalyst surface, blocking the chemical reactions needed to treat exhaust gases effectively.
  • Unburned fuel entering the exhaust system may create excessive heat within the DOC, potentially damaging the internal substrate.
  • Fuel contamination can lead to deposits forming inside the DOC, reducing airflow and catalyst performance.
  • Oil residue may cause permanent fouling of the catalyst, making it difficult or impossible to restore proper function.
  • Increased soot production from poor combustion can add to buildup and further restrict the DOC.
  • Contamination can trigger check engine lights and catalyst efficiency fault codes.
  • Over time, reduced DOC performance can impact downstream components such as the Diesel Particulate Filter (DPF).

Fuel or oil contamination can quickly degrade DOC performance if not addressed. Promptly fixing engine issues, maintaining proper combustion, and preventing leaks are essential steps to protect the DOC and ensure reliable emissions control.

 
 

It focuses on oxidizing gases rather than trapping particles or reducing NOx.

It treats carbon monoxide and hydrocarbon emissions produced during combustion.

No, it does not remove soot; it focuses on converting gases rather than filtering particles.

It relies on heat and catalytic materials to activate chemical reactions.

Cummins DOC Filters

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