
Cummins QSB, 6.7L, 4.5L DOC/DPF 2012-2020: OEM 4353513
CUMMINS QSB, 6.7L, 4.5L DOC/DPF 2012-2020: OEM 4353513

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured Cummins DOC/DPF, Cummins part number 4353513RM-DOC ( OEM Part Number 4353513 ). 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, 4.5L , production years 2012-2020, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
OEM NUMBERS
| Primary OEM | 4353513 |
| Additional OEM | 4353513 |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490553439 |
| WEIGHT | 97.00 LBS |
SHIPPING OPTIONS
Ship Weight : 97.00 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.
Designed for 2012–2020 Cummins QSB 6.7L and 4.5L engines, the Cummins DOC/DPF Assembly (OEM 4353513) is a critical component of the diesel exhaust aftertreatment system. This combined Diesel Oxidation Catalyst (DOC) and Diesel Particulate Filter (DPF) works to reduce harmful emissions by converting exhaust gases and capturing soot before it is released. Manufactured to meet original equipment specifications, it is built for proper fitment and dependable integration with existing emissions components. The durable construction is intended to withstand high temperatures and demanding operating conditions commonly found in diesel applications. Replacing a worn or restricted DOC/DPF assembly with the OEM 4353513 helps maintain proper exhaust system function and supports compliance with emissions regulations.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2012 | Cummins | QSB | 6.7L | 4.5L | ||
| 2013 | Cummins | QSB | 6.7L | 4.5L | ||
| 2014 | Cummins | QSB | 6.7L | 4.5L | ||
| 2015 | Cummins | QSB | 6.7L | 4.5L | ||
| 2016 | Cummins | QSB | 6.7L | 4.5L | ||
| 2017 | Cummins | QSB | 6.7L | 4.5L | ||
| 2018 | Cummins | QSB | 6.7L | 4.5L | ||
| 2019 | Cummins | QSB | 6.7L | 4.5L | ||
| 2020 | Cummins | QSB | 6.7L | 4.5L | ||
PEOPLE ALSO ASKS | BLOG(S)
The Cummins QSB 6.7L and 4.5L DOC/DPF assembly (OEM 4353513) is a combined emissions component used in many diesel engines from 2012 to 2020. Its main role is to treat exhaust gases by reducing both harmful gases and particulate matter before they are released into the environment.
This unit combines two key technologies—the Diesel Oxidation Catalyst (DOC) and the Diesel Particulate Filter (DPF)—into a single system, allowing it to handle multiple stages of emissions control.
Main Roles of the Cummins DOC/DPF Assembly
- Reduces hydrocarbons (HC) and carbon monoxide (CO)
- through the DOC section
- Captures and stores soot (particulate matter)
- in the DPF section
- Supports regeneration cycles
- to burn off accumulated soot inside the filter
- Helps engines meet emissions regulations
- for diesel equipment
- Maintains proper exhaust flow
- within the aftertreatment system
The DOC section begins the process by converting harmful gases, while the DPF section traps solid particles and periodically cleans itself through regeneration.
Because it handles both gas conversion and particulate filtration, the Cummins OEM 4353513 DOC/DPF assembly plays a central role in the emissions system. It ensures that exhaust leaving the engine is significantly cleaner and supports the proper function of the entire aftertreatment system for Cummins QSB 4.5L and 6.7L engines.
If your Diesel Oxidation Catalyst (DOC) or Diesel Particulate Filter (DPF) is failing, it’s important to act quickly. Both components are critical to your emissions system, and when one fails, it can affect the entire exhaust aftertreatment process.
The first step is to confirm the issue with a diagnostic scan. This will help identify fault codes related to the DOC, DPF, or other connected components.
Once the issue is confirmed, here are the key steps to take:
- Run a diagnostic scan
- to identify emissions-related trouble codes
- Check for regeneration issues
- that may be preventing soot from burning off
- Inspect for excessive soot or ash buildup
- inside the DPF
- Examine the DOC for contamination or restriction
- Look for engine problems
- that may be producing excess soot or unburned fuel
- Perform a forced regeneration
- if recommended and safe to do
- Replace the DOC or DPF
- if they are heavily contaminated, clogged, or damaged
It’s also important to identify the root cause of the failure. Issues like faulty sensors, poor fuel quality, injector problems, or engine inefficiencies can lead to repeated DOC/DPF problems if not corrected.
Addressing both the failed component and the underlying issue will help restore proper exhaust system function and prevent further damage to your emissions system.
A restriction can reduce exhaust flow and may lead to system warnings or reduced engine efficiency.
Matching the OEM number ensures proper fitment and compatibility with the engine’s emissions system design.
Cummins OEM 4353513 is a combined diesel oxidation catalyst and diesel particulate filter used in the aftertreatment system.
The DOC section initiates emissions treatment by converting hydrocarbons and carbon monoxide in the exhaust stream.




