
Cummins ISB DOC 2008-2010
CUMMINS ISB DOC 2008-2010

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a New, Skyline DOC, Skyline part number BG0402-C.This part is primarily made for a Cummins ISB, production years 2008-2010, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
Additional Notes: 1x of CL001, 1x of CL045,1x of GA001, 1x of GA045
OEM NUMBERS
| Additional OEM | 4965338, 4965338NX, 5287474, 5287474NX, 5287474RX, A035H173, Q621546 |
ADDITIONAL DETAILS
| CONDITION | New |
| UPC / Barcode | 00840490543409 |
| WEIGHT | 40.00 LBS |
SHIPPING OPTIONS
Ship Weight : 40.00 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.
Serving as a key component in the emissions control system, the Diesel Oxidation Catalyst (DOC) for Cummins ISB engines fits models manufactured from 2008 to 2010. This catalyst aids in reducing targeted exhaust compounds by initiating oxidation reactions as gases move through the aftertreatment pathway. Its emissions-rated construction supports proper fitment, stable exhaust flow, and resilience in the high-heat environment typical of diesel operation. When signs such as decreased aftertreatment effectiveness, increased soot presence, or DOC-related diagnostic codes arise, replacing the unit can help restore correct system performance. Crafted with durable materials and precise engineering, it contributes to dependable emissions treatment across all compatible ISB applications in this model range.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2008 | Cummins | ISB | ||||
| 2009 | Cummins | ISB | ||||
| 2010 | Cummins | ISB | ||||
PEOPLE ALSO ASKS | BLOG(S)
Replacing a Diesel Oxidation Catalyst (DOC) is a detailed process that requires the right tools, safe handling procedures, and an understanding of the exhaust system layout. While some skilled technicians choose to perform the replacement themselves, many owners prefer professional service due to the complexity and weight of the components involved.
Before beginning, make sure the exhaust system is completely cooled. Working on a hot DOC can cause severe injury.
Steps to replace a DOC include:
- Disconnect the battery to avoid electrical issues while working near sensors.
- Inspect mounting brackets and fasteners to identify rusted or seized hardware.
- Remove sensors connected to the DOC and label them for correct reinstallation.
- Unbolt the DOC assembly from the exhaust system, supporting it to prevent damage.
- Install the new DOC with fresh gaskets and hardware to ensure a proper seal.
- Reinstall sensors and make sure connectors are secure and clean.
- Run a diagnostic scan to clear related fault codes and confirm stable exhaust readings.
Because the DOC is part of the emissions system, correct installation is crucial to prevent leaks, irregular temperatures, and downstream issues.
If you’re not experienced with exhaust repairs, having a technician perform the replacement ensures safe handling and reliable long-term operation.
Poor fuel atomization can send unburned fuel into the exhaust, overloading and damaging the DOC substrate.
Regularly addressing oil leaks or overfueling conditions prevents contaminants from coating the catalyst.
It limits exhaust flow, reducing turbo boost response and engine efficiency.
Frequent cold-weather idling or short trips that prevent proper warm-up can reduce catalyst lifespan.





















































