
Paccar PX8 DOC : OEM 2885940RX
PACCAR PX8 DOC : OEM 2885940RX

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a New, DOC, part number 102-0041-1 ( OEM Part Number 2885940RX ). This part is primarily made for a Paccar PX8, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
OEM NUMBERS
Primary OEM | 2885940RX |
Additional OEM | 2885940, 2885940NX, 2885940RX, A030D523 |
ADDITIONAL DETAILS
CONDITION | New |
UPC / Barcode | 00840490538900 |
WEIGHT | 44.00 LBS |
SHIPPING OPTIONS
Ship Weight : 44.00 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.
Built to meet original equipment standards, the Paccar PX8 DOC: OEM 2885940RX ensures precise fit and dependable function for PX8 diesel engines. This diesel oxidation catalyst is specifically designed to reduce harmful emissions while maintaining reliable exhaust system operation. Its strong construction delivers long-lasting durability, even in demanding environments, helping protect both engine efficiency and regulatory compliance. By choosing an OEM DOC, you minimize compatibility concerns and support long-term dependability. This part is a trusted solution for keeping Paccar-powered equipment operating smoothly and efficiently.
PEOPLE ALSO ASKS | BLOG(S)
The Paccar PX8 Diesel Oxidation Catalyst (DOC), OEM part number 2885940RX, is an essential component in the aftertreatment system for PX8 diesel engines. Built to meet strict emissions regulations, this DOC is designed to reduce the impact of harmful exhaust gases before they leave the tailpipe.
The primary function of the DOC is to oxidize specific pollutants found in diesel exhaust. As hot exhaust gases pass through the catalyst, chemical reactions occur on the surface of the precious-metal-coated substrate, transforming toxic compounds into safer byproducts.
Key Functions of the Paccar PX8 DOC:
- Converts carbon monoxide (CO) into carbon dioxide
- Oxidizes unburned hydrocarbons (THC) into water vapor
- Converts nitric oxide (NO) into nitrogen dioxide (NO₂), supporting downstream soot removal
By generating nitrogen dioxide, this DOC also plays a crucial role in supporting passive regeneration of the Diesel Particulate Filter (DPF), allowing it to burn off soot during normal operation.
Built to original equipment specifications, the OEM 2885940RX DOC ensures compatibility and reliability. It helps keep the emissions system efficient, reduces downtime, and supports compliance with emissions standards.
The Diesel Oxidation Catalyst (DOC) is the first line of defense in a diesel emissions system. It helps break down harmful gases like carbon monoxide and hydrocarbons before they exit the tailpipe. Like any emissions component, it requires attention over time to stay effective.
Typical Service Intervals for a DOC
DOCs are designed to last a long time under normal operating conditions. However, the exact service interval depends on vehicle type, usage, and overall system health. Generally:
- Light-duty vehicles: Inspection every 100,000 miles
- Heavy-duty trucks: Inspection between 200,000 to 250,000 miles
- Severe-duty cycles (frequent idling, short trips): May require earlier attention
Signs It May Be Time for Service
- Reduced fuel efficiency
- Check engine light or emissions codes
- Increased exhaust backpressure
- Poor exhaust flow or odor
Unlike filters, the DOC doesn’t typically require regular cleaning but should be inspected during major service intervals to ensure it's not damaged or contaminated. Keeping the DOC in good shape helps the entire aftertreatment system operate smoothly and keeps emissions in check.
Yes, it is designed for straightforward installation as a direct OEM match.
Yes, by keeping exhaust flow clean, it supports reliable long-term operation.
It reduces harmful exhaust pollutants like hydrocarbons and carbon monoxide.
It is engineered to OEM specifications to ensure consistent emissions control.