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Freightliner DD13, DD15 One Box : OEM A6804901456

FREIGHTLINER DD13, DD15 ONE BOX : OEM A6804901456

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$8,499.00

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.

AVAILABILITY IN STOCK
OEM NUMBERA6804901456
PART TYPEOne Box
BRANDTamerx Diesel Products
ENGINE MAKEFreightliner
ENGINE TYPEDD13, DD15
YEAR
PART NUMBER203-0025RM-ONEBOX
ADDITIONAL NOTESFreightliner one box includung DPF FIlters

PRODUCT DESCRIPTION

This is a Remanufactured, Tamerx One Box, Tamerx part number 203-0025RM-ONEBOX ( OEM Part Number A6804901456 ). This part is primarily made for a Freightliner DD13, DD15, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: Freightliner one box includung DPF FIlters

OEM NUMBERS

Primary OEMA6804901456
Additional OEMA6804901456, A6804903212

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490548039
WEIGHT300.00 LBS

SHIPPING OPTIONS

Ship Weight : 300.00 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.


Step into smarter emissions control with the Freightliner DD13, DD15 One Box – OEM A6804901456, a complete aftertreatment solution engineered for peak performance. This all-in-one module helps cut down harmful exhaust emissions while keeping your engine running cleaner and more efficiently. Built to precise OEM standards, it ensures a reliable fit and long-lasting durability you can count on. Keep your Freightliner cruising with confidence and compliance mile after mile.

PEOPLE ALSO ASKS | BLOG(S)

Modern diesel engines require advanced aftertreatment systems to reduce harmful exhaust emissions, and the Freightliner DD13, DD15 One Box (OEM A6804901456) is a crucial part of that strategy. Designed specifically for Freightliner DD13 and DD15 engines, this integrated emissions assembly helps manage exhaust processing, ensuring that pollutants are treated properly before leaving the tailpipe. Choosing a high-quality OEM One Box ensures your emissions system functions as it should, supporting cleaner operation and reliable engine performance.

This One Box assembly plays a key role in emissions management — here’s why it matters:

  • Integrated Emissions Functionality – Combines essential aftertreatment components into one assembly, simplifying exhaust processing and streamlining emissions control.

  • Helps Reduce Harmful Pollutants – Works within the aftertreatment system to manage nitrogen oxides (NOx), soot, and other exhaust byproducts, contributing to cleaner emissions output.

  • Supports Regulatory Compliance – Installing the correct OEM One Box helps ensure your engine continues to meet emissions standards and avoid related fault codes or derate conditions.

  • OEM-Grade Fit and Durability – As OEM A6804901456, this assembly matches original specifications for fitment, materials, and reliable performance under heavy-duty use.

  • Improves Serviceability – An integrated emissions assembly can make diagnostics and maintenance more straightforward compared to managing separate components.

A worn or failing emissions assembly can lead to reduced emissions efficiency, engine derates, or elevated exhaust temperatures. The Freightliner DD13, DD15 One Box (OEM A6804901456) delivers the OEM-level quality and integration your engine depends on — helping keep your diesel running cleaner, more efficiently, and in compliance with emissions requirements. For customers seeking a trusted replacement part, Tamerx offers high-quality components designed to support long-lasting emissions performance and dependable engine operation.

A One Box is a complex aftertreatment system that combines multiple emissions components into a single housing. Because it manages soot, DEF dosing, and exhaust treatment, proper service focuses more on system health than manual cleaning. Understanding how a One Box is maintained helps prevent unnecessary damage and costly repairs.

  • No routine manual cleaning: One Box units are designed to self-manage through regeneration and do not require regular physical cleaning.

  • Follow regeneration guidelines: Proper driving conditions allow the system to complete regeneration cycles that burn off accumulated soot.

  • Inspect sensors and wiring: Faulty temperature, pressure, or NOx sensors can affect One Box operation and should be checked during service.

  • Address fault codes promptly: Emissions or SCR-related warning lights indicate issues that need immediate diagnosis.

  • Maintain upstream components: Healthy injectors, turbochargers, and EGR systems reduce soot and contamination entering the One Box.

  • Replacement is condition-based: Severe clogging, internal damage, or contamination typically requires replacement rather than cleaning.

Servicing a One Box focuses on system monitoring and preventive maintenance rather than hands-on cleaning. Keeping the engine and emissions components in good condition helps the One Box function properly and supports long-term emissions system reliability.

Routine checks of exhaust sensors, ensuring clean air intake, and maintaining engine tune-ups help reduce stress on the unit. Consistent servicing and avoiding contaminated fuel also support longevity.

Yes, if internal sensors detect that emissions are outside normal parameters, the engine control system may show a warning. These alerts often indicate it’s time to inspect or service emissions components.

Inspection is recommended during regular scheduled maintenance or whenever emissions system warnings appear. Early checks can catch problems before they affect other systems.

The One Box works alongside Diesel Exhaust Fluid (DEF) dosing and SCR systems to manage different emissions components. Together, these systems help reduce NOx and particulate output.

Freightliner One Boxs

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