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Paccar PX8 DOC 2011-2013

PACCAR PX8 DOC 2011-2013

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,095.00

CORE CHARGE:

$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.

AVAILABILITYCALL FOR AVAILABILITY
OEM NUMBER
PART TYPEDOC
BRANDSkyline Emissions
ENGINE MAKEPaccar
ENGINE TYPEPX8
YEAR2011-2013
PART NUMBERCJ0404-1-C
APPLICATION NOTESEPA10
ADDITIONAL NOTES1x of CL002, 1x of CL058,1x of GA002, 1x of GA058
WARRANTY
One Million Miles or One Year

PRODUCT DESCRIPTION

This is a New, Skyline Emissions DOC, Skyline Emissions part number CJ0404-1-C.This part is primarily made for a Paccar PX8, production years 2011-2013, and comes with a One Million Miles or One Year Warranty.

Additional Notes: 1x of CL002, 1x of CL058,1x of GA002, 1x of GA058

OEM NUMBERS

Additional OEM2871468, 2871468NX, 2880512, 2880512NX, 2880512RX, A029W349, Q629359

ADDITIONAL DETAILS

CONDITIONNew
UPC / Barcode00840490544277
WEIGHT46.00 LBS

SHIPPING OPTIONS

Ship Weight : 46.00 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.

WARRANTY

SELLER warrants the Products to be free from defects in material or workmanship according to the SELLER’s warranty policy as stated in the Product’s owner’s manual. SELLER will only warrant product if conditions as determined in the Product’s owner’s manual are adhered to. SELLER’s warranty will not apply if Product replacement is required because of accident, neglect, misuse, transportation or other causes outside of SELLER’s control. All regular freight shipping costs will be paid by SELLER unless the Product is found upon inspection by SELLER not be to eligible for replacement under this warranty, in which case the CUSTOMER shall be responsible for the shipping costs. Expedited freight charges shall be the sole responsibility of the CUSTOMER. THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

LIMITATION ON PRODUCT AND INSTALLATION WARRANTY LIABILITY

SELLER WILL NOT BE LIABLE FOR ANY LOSS, DAMAGE, OR EXPENSE, INCLUDING INJURY OR DAMAGE TO BUSINESS, EARNINGS, PROFITS OR GOODWILL SUFFERED BY ANY PERSON INCLUDING DISTRIBUTOR AND ITS CUSTOMERS, CAUSED DIRECTLY OR INDIRECTLY BY THE IMPROPER PRODUCT INSTALLATION OR MAINTENANCE SERVICE BY DISTRIBUTOR OR CUSTOMER, AND/OR VEHICLE/PRODUCT ACCIDENT, NEGLECT, MISUSE, COMPONENT SWAPPING, IMPROPER USE OF ALTERNATIVE FUELS OR FUEL ADDITIVES, TRANSPORTATION OR OTHER CAUSES OUTSIDE OF SELLER’S CONTROL PURSUANT TO THE PRODUCT’S OWNER’S MANUAL; AND IN NO EVENT WILL SELLER BE LIABLE FOR ANY DAMAGES, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, FOR ANY COSTS OF PROCUREMENT OF SUBSTITUTE GOODS, FOR ANY CONSEQUENTIAL, SPECIAL, INDIRECT OR INCIDENTAL DAMAGES, OR FOR PENALTIES SUFFERED BY DISTRIBUTOR, ITS CUSTOMERS OR ANY OTHER PARTY DUE TO IMPROPER PRODUCT INSTALLATION OR MAINTENANCE SERVICE BY DISTRIBUTOR OR CUSTOMER, AND/OR VEHICLE/PRODUCT ACCIDENT, NEGLECT, MISUSE, COMPONENT SWAPPING, IMPROPER USE OF ALTERNATIVE FUELS OR FUEL ADDITIVES, TRANSPORTATION OR OTHER CAUSES OUTSIDE OF SELLER’S CONTROL PURSUANT TO THE PRODUCT OWNER’S MANUAL, EVEN IF SELLER WILL HAVE BEEN ADVISED OF THE POSSIBILITY OF SAME. THIS LIMITATION IS INTENDED TO LIMIT THE LIABILITY OF SELLER AND WILL APPLY NOTWITHSTANDING ANY FAILURE OF ESSENTIAL PURPOSE OF ANY LIMITED REMEDY. SKYLINE® DOC AND DPF PARTS CARRY A LIMITED WARRANTY OF 3 YEARS, SENSORS CARRY A LIMITED WARRANTY OF 1 YEAR. COMPONENTS THAT ARE SUBJECT TO REGULAR USAGE WEAR AND TEAR ARE NOT COVERED UNDER THE STANDARD SELLER PRODUCT WARRANTY, THESE COMPONENTS INCLUDE BRACKETS, RUBBER COMPONENTS, GASKETS, SEALS, NUTS, BOLTS AND WASHERS. No loss or damage to the Products or any portion thereof shall relieve the Customer from its obligations hereunder.

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 to function as an integral part of the exhaust aftertreatment system, the Diesel Oxidation Catalyst (DOC) for Paccar PX8 engines fits models produced from 2011 to 2013. This component helps treat exhaust gases by promoting oxidation reactions that reduce targeted emissions before the flow reaches downstream aftertreatment equipment. Its emissions-rated construction supports accurate fitment, stable exhaust flow characteristics, and durability under sustained high-temperature operation. When conditions such as reduced exhaust treatment efficiency, soot accumulation, or aftertreatment-related diagnostic alerts arise, replacing the DOC can help restore proper system behavior. Manufactured with reliable materials and precise engineering, it supports consistent emissions management across all compatible PX8 applications within this model range.

FITMENT CHART

YEARMAKEENGINE(S)
2011Paccar PX8
2012Paccar PX8
2013Paccar PX8

PEOPLE ALSO ASKS | BLOG(S)

The Diesel Oxidation Catalyst (DOC) plays a critical role in treating exhaust gases and supporting proper operation of the DPF. When the DOC begins to fail, it can no longer manage exhaust temperatures or oxidation efficiently, which often leads to noticeable changes in vehicle behavior. Recognizing these signs early can help prevent costly emissions system damage.

A failing DOC typically affects exhaust flow, regeneration cycles, and sensor feedback.

Common signs that your DOC may be failing include:

  • Frequent or incomplete regeneration cycles
  • Stronger or unusual exhaust odors
  • Increased soot buildup, especially affecting the DPF
  • Check Engine Light tied to catalyst or temperature-related fault codes
  • Higher exhaust temperatures during normal operation
  • Little temperature difference between DOC inlet and outlet readings
  • Repeated emissions-related warnings that return after clearing

As the DOC loses efficiency, it places additional strain on the DPF and exhaust sensors. Over time, this can lead to restricted exhaust flow and derate conditions.

If these symptoms appear, a diagnostic inspection can confirm reduced catalyst activity or internal damage. Addressing DOC issues early helps protect downstream components and maintain stable exhaust system operation.

Effective oxidation helps slow soot loading and extend downstream maintenance schedules.

Verifying exhaust flow direction, sensor engagement, and emissions family alignment ensures proper application.

It converts harmful exhaust gases into less reactive compounds before they enter the particulate filter.

It promotes oxidation reactions that help stabilize exhaust temperatures under varying loads.

Paccar DOCs

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