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Detroit DD15 One Box 2023-2026: OEM EA6814900214

DETROIT DD15 ONE BOX 2023-2026: OEM EA6814900214

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$7,995.00

CORE CHARGE:

$2,000.00
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 NUMBEREA6814900214
PART TYPEOne Box
BRANDTamerx Diesel Products
ENGINE MAKEDetroit
ENGINE TYPEDD15
YEAR2023-2026
PART NUMBER6814900214RM-ONEBOX
APPLICATION NOTESFreightliner, GHG21
ADDITIONAL NOTESFreightliner One Box including DPF Filter, SIngle DPF system

PRODUCT DESCRIPTION

This is a Genuine Remanufactured Tamerx One Box, Tamerx part number 6814900214RM-ONEBOX ( OEM Part Number EA6814900214 ). 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 Detroit DD15, production years 2023-2026, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: Freightliner One Box including DPF Filter, SIngle DPF system

OEM NUMBERS

Primary OEMEA6814900214
Additional OEM6814900214, EA0024908392, EA6814900214

ADDITIONAL DETAILS

CONDITIONGenuine Remanufactured
UPC / Barcode00840490555792
WEIGHT400.00 LBS

SHIPPING OPTIONS

Ship Weight : 400.00 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.


Advanced emissions control starts with the Detroit DD15 One Box 2023–2026 (OEM EA6814900214). Designed specifically for Detroit DD15 engines, this integrated One Box combines key aftertreatment components into a single assembly for efficient exhaust management. Manufactured to meet OEM specifications, it delivers precise fitment and dependable compatibility across the listed model years. Installing the correct One Box helps support reliable emissions performance, streamlined operation, and long-lasting durability.

FITMENT CHART

YEARMAKEENGINE(S)
2023Detroit DD15
2024Detroit DD15
2025Detroit DD15
2026Detroit DD15

PEOPLE ALSO ASKS | BLOG(S)

The Detroit DD15 One Box 2023-2026: OEM EA6814900214 is an integrated exhaust aftertreatment assembly designed to house multiple emissions-control components in a single unit. Its all-in-one design simplifies replacement while maintaining compatibility with the original Detroit DD15 emissions system.

  • OEM EA6814900214 designed for Detroit DD15 engines from 2023-2026
  • Combines multiple aftertreatment components into one complete assembly
  • Engineered for seamless integration with the factory exhaust system
  • Built to OEM specifications for precise fit and dependable installation
  • Heavy-duty construction designed for commercial truck applications
  • Complete replacement solution for worn or damaged One Box assemblies

The Detroit DD15 One Box OEM EA6814900214 is a reliable replacement component for maintaining a properly functioning diesel emissions system. Tamerx Diesel Parts offers quality OEM-fit aftertreatment solutions trusted by truck owners and repair professionals for dependable service and compatibility.

 

The One Box is an integrated aftertreatment system that combines the Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), and Selective Catalytic Reduction (SCR) into a single assembly. Its primary purpose is to reduce emissions, but when the One Box develops a fault, it can also affect overall engine efficiency. In many cases, a malfunctioning One Box can contribute to increased fuel consumption.

  • Restricted exhaust flow caused by soot or ash buildup can force the engine to work harder, reducing fuel efficiency.
  • Frequent or unsuccessful DPF regeneration cycles may consume additional fuel as the system repeatedly attempts to clear accumulated soot.
  • Faults within the SCR system can lead to improper DEF dosing, affecting overall engine operation.
  • Warning lights and emissions-related fault codes may trigger reduced power or derate mode, making the engine less efficient.
  • Malfunctioning sensors within the One Box can provide inaccurate data, causing the engine control module to make unnecessary adjustments.
  • Unresolved engine issues that affect the One Box, such as faulty injectors or excessive soot production, can further increase fuel consumption.

Although a faulty One Box does not always cause an immediate drop in fuel economy, it can reduce overall engine efficiency over time. Prompt diagnosis and repair help restore proper exhaust flow, improve fuel economy, and maintain reliable emissions system performance.

Yes, exhaust leaks can interfere with sensor readings and reduce aftertreatment efficiency. Repairing leaks promptly helps maintain proper system operation.

Keeping the engine properly maintained and addressing emissions faults early can reduce stress on the One Box. Following recommended service intervals also helps improve reliability.

Yes, contaminated or incorrect DEF can reduce SCR system performance and contribute to aftertreatment issues. Using fresh DEF that meets manufacturer specifications is recommended.

The One Box is a critical part of the truck's aftertreatment system that helps reduce harmful emissions. Proper operation helps the vehicle meet EPA emissions requirements.