
Cummins QSB 6.7L, ISB DOC Filter 2014-2018: OEM 4353362RX
CUMMINS QSB 6.7L, ISB DOC FILTER 2014-2018: OEM 4353362RX

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured Tamerx DOC Filter, Tamerx part number 102-0174RM-DOC ( OEM Part Number 4353362RX ). 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 QSB 6.7L, ISB, production years 2014-2018, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
Additional Notes: Outlet Catalyst
OEM NUMBERS
| Primary OEM | 4353362RX |
| Additional OEM | 4353362RX |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490547865 |
| WEIGHT | 36.00 LBS |
SHIPPING OPTIONS
Ship Weight : 36.00 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.
For reliable emissions system function, the Cummins QSB 6.7L and ISB DOC Filter 2014–2018, OEM Part Number 4353362RX, is engineered for select applications on QSB 6.7L and ISB engines. This diesel oxidation catalyst (DOC) filter helps convert harmful exhaust gases into less harmful emissions before they enter the rest of the aftertreatment system. Built to meet OEM specifications, it provides accurate fitment and durable construction suited for demanding commercial and vocational duties. A restricted or failing DOC filter can lead to warning lights, increased exhaust backpressure, or aftertreatment concerns, making timely replacement important. Tamerx Diesel Products LLC offers dependable diesel components to help keep your Cummins engine operating cleanly and consistently.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2014 | Cummins | QSB 6.7L | ISB | |||
| 2015 | Cummins | QSB 6.7L | ISB | |||
| 2016 | Cummins | QSB 6.7L | ISB | |||
| 2017 | Cummins | QSB 6.7L | ISB | |||
| 2018 | Cummins | QSB 6.7L | ISB | |||
PEOPLE ALSO ASKS | BLOG(S)
Emissions control is a critical part of modern diesel engine operation, and the Cummins QSB 6.7L, ISB DOC Filter OEM 4353362RX plays an essential role in that system. Designed for 2014–2018 applications, this Diesel Oxidation Catalyst (DOC) helps reduce harmful exhaust gases before they move downstream to the Diesel Particulate Filter (DPF) and SCR system.
Unlike a DPF that traps soot, the DOC uses a catalyst-coated substrate to trigger chemical reactions in the exhaust stream.
The Cummins DOC Filter OEM 4353362RX is important because it:
- Converts carbon monoxide into carbon dioxide
- Oxidizes unburned hydrocarbons into water vapor and carbon dioxide
- Helps reduce exhaust odor
- Generates heat needed for DPF regeneration
- Supports overall emissions compliance
One of its most important functions is heat generation. During oxidation, the DOC raises exhaust temperature, which helps the DPF reach the levels necessary to burn off accumulated soot. Without proper DOC function, DPF regeneration may become less effective.
If the DOC becomes contaminated or damaged, it can reduce aftertreatment efficiency, trigger warning lights, and lead to performance-related issues.
The OEM 4353362RX DOC filter is engineered specifically for Cummins QSB 6.7L and ISB engines, ensuring proper fitment and compatibility with factory aftertreatment components.
When functioning correctly, this DOC filter supports cleaner exhaust output, proper downstream system operation, and dependable engine performance.
If your DOC (Diesel Oxidation Catalyst) filter is failing, it’s important to act quickly. The DOC plays a key role in reducing harmful exhaust gases, and problems can affect the entire aftertreatment system.
The first step is identifying the warning signs.
Common symptoms of a failing DOC filter include:
- Check engine or aftertreatment warning light
- Catalyst efficiency fault codes
- Strong or unusual exhaust odor
- Increased exhaust temperatures
- Failed emissions testing
- Rattling noise from the exhaust housing
If you notice these issues, schedule a professional diagnostic inspection. A technician will typically:
- Scan for stored fault codes
- Monitor temperature readings before and after the DOC
- Check for exhaust restriction
- Inspect for oil or coolant contamination
In some cases, the issue may be caused by faulty sensors or an engine problem rather than the DOC itself. Proper diagnosis is essential before replacing any components.
If the internal substrate is cracked, melted, or severely contaminated, replacement is usually required. It’s also important to correct the root cause, such as oil leaks or misfires, to prevent repeat failure.
Addressing DOC issues early helps protect other exhaust components and reduces the risk of more costly repairs.
Yes, a clogged or damaged Cummins 4353362RX DOC Filter can trigger emissions-related diagnostic codes on the engine control system.
Yes, the Cummins 4353362RX is engineered for direct replacement with proper fitment and connections on the specified engines.
Yes, professional installation is recommended to ensure correct sealing and integration with the exhaust and emission sensor connections.
Using the correct OEM 4353362RX helps maintain proper emissions oxidation and ensures compatibility with the engine’s aftertreatment design.












