Cummins X15 DOC Filter 2018-2021: OEM 5417992
CUMMINS X15 DOC FILTER 2018-2021: OEM 5417992
ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY
WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured, Tamerx DOC Filter, Tamerx part number 102-0124RM-DOC-3 ( OEM Part Number 5417992 ).This part is primarily made for a Cummins X15, production years 2018-2021, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
Additional Notes: Inlet Catalyst
OEM NUMBERS
| Primary OEM | 5417992 |
| Additional OEM | 5417992 |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490549555 |
| WEIGHT | 35.00 LBS |
SHIPPING OPTIONS
Ship Weight : 35.00 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.
Proper exhaust aftertreatment begins with a dependable diesel oxidation catalyst like the Cummins X15 DOC Filter 2018–2021, OEM Part Number 5417992. Designed for compatibility with select Cummins X15 engine applications, this DOC helps convert harmful exhaust gases into less harmful emissions before they continue through the remainder of the emissions system. Manufactured to meet OEM specifications, it ensures precise fitment and durable construction for demanding on-road and vocational use. A restricted or failing DOC filter can result in warning lights, increased exhaust backpressure, or additional aftertreatment concerns that require attention. Tamerx Diesel Products LLC supplies trusted diesel components to help keep your Cummins X15 engine operating cleanly and reliably.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2018 | Cummins | X15 | ||||
| 2019 | Cummins | X15 | ||||
| 2020 | Cummins | X15 | ||||
| 2021 | Cummins | X15 | ||||
PEOPLE ALSO ASKS | BLOG(S)
The Cummins X15 DOC (Diesel Oxidation Catalyst) Filter OEM 5417992 is an essential emissions aftertreatment component used on 2018–2021 Cummins X15 diesel engines. Although it’s supplied as a complete assembly, the DOC contains several internal and external elements that enable it to chemically treat exhaust gases before they move downstream to devices such as the Diesel Particulate Filter (DPF) and Selective Catalytic Reduction (SCR) system.
Primary DOC Components
- DOC Housing
- A sturdy metal casing that holds and protects all internal elements while providing secure connection points to the exhaust system.
- Catalyst Substrate
- A honeycomb-style internal core made of a porous ceramic or metallic material. This substrate provides extensive surface area for catalytic reactions.
- Catalyst Coating
- Precious metals or catalyst materials are applied to the substrate surfaces. These materials help accelerate oxidation reactions that transform harmful exhaust gases.
- Inlet and Outlet Cones
- Internal passages that guide exhaust gases smoothly into and out of the catalyst substrate.
Supporting & Sealing Elements
- Gaskets and Seals
- High-temperature seals located at the inlet and outlet flanges to prevent exhaust leaks.
- Mounting Flanges
- Precision-machined surfaces on the housing that allow the DOC filter to be bolted securely into the exhaust system.
Sensor & Monitoring Interfaces
While the DOC itself does not contain active sensors, the aftertreatment system usually includes:
- Temperature Sensor Ports
- Ports where exhaust temperature sensors can be mounted to monitor operating conditions.
- Pressure Sensor Ports (if equipped)
- On some systems, ports may interface with pressure sensors that help indicate restrictions or performance issues.
How These Components Work Together
As hot exhaust gases exit the engine, they flow into the DOC housing and through the honeycomb catalyst substrate. The catalyst coating promotes oxidation reactions that convert:
- Carbon monoxide (CO) → Carbon dioxide (CO₂)
- Unburned hydrocarbons (HC) → Water vapor (H₂O) and CO₂
These reactions also generate heat, which helps raise exhaust temperature for downstream systems like the DPF to regenerate soot effectively. The housing, gaskets, and flanges ensure a sealed, secure connection within the exhaust system, and sensor interfaces allow the engine control module (ECM) to monitor operating conditions. Together, these elements allow the Cummins X15 DOC Filter OEM 5417992 to reduce harmful gases and support efficient aftertreatment performance.
The DOC (Diesel Oxidation Catalyst) filter reduces harmful exhaust gases by triggering a chemical reaction inside a coated substrate. Because it depends on clean exhaust flow and proper temperatures, contamination is the most common reason it fails.
The main cause of DOC filter failure is internal contamination from oil or coolant.
When engine oil or coolant enters the exhaust stream, it can coat the catalyst surface. This coating blocks the chemical reaction needed to convert emissions efficiently and often leads to catalyst efficiency fault codes.
Other contributing factors include:
- Excessive soot from incomplete combustion
- Faulty fuel injectors
- EGR system malfunctions
- Prolonged engine misfires
- Repeated overheating events
- Ignoring early warning lights
Overheating can also damage the internal substrate. If exhaust temperatures remain too high for extended periods, the catalyst structure may crack or melt, leading to restricted exhaust flow.
Engine issues that increase soot or unburned fuel can accelerate DOC wear and reduce overall efficiency.
Routine engine maintenance, repairing oil or coolant leaks quickly, and responding to warning lights promptly can significantly reduce the risk of premature DOC filter failure and help maintain proper emissions system function.
Yes — a restricted or failing DOC Filter can trigger emissions-related diagnostic codes and affect overall aftertreatment performance.
Yes — the DOC Filter is designed to work with the engine’s original emissions sensors and control systems.
Yes — professional installation ensures proper sealing, correct positioning, and integration with emissions hardware.
Using the correct OEM 5417992 helps maintain reliable oxidation of exhaust pollutants and supports compliant aftertreatment system operation.
Cummins DOC Filters
