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Cummins B6.7 DOC Filter 2022-2026: OEM 5515594

CUMMINS B6.7 DOC FILTER 2022-2026: OEM 5515594

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$6,995.00

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 NUMBER5515594
PART TYPEDOC Filter
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEB6.7
YEAR2022-2026
PART NUMBER5515594RM-DOC
APPLICATION NOTESStage V Enhancened B6.7 Vertical SIEO
ADDITIONAL NOTESInlet Catalyst Module
WARRANTY
One Million Miles or One Year

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx DOC Filter, Tamerx part number 5515594RM-DOC ( OEM Part Number 5515594 ). 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 Cummins B6.7, production years 2022-2026, and comes with a One Million Miles or One Year Warranty.

Additional Notes: Inlet Catalyst Module

OEM NUMBERS

Primary OEM5515594
Additional OEM5515594, A071Z199

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490558434
WEIGHT55.00 LBS

SHIPPING OPTIONS

Ship Weight : 55.00 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 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, 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 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.


Enhance exhaust aftertreatment with this Cummins B6.7 DOC Filter for 2022–2026 applications. OEM 5515594 helps oxidize harmful exhaust pollutants, supporting proper emissions control and diesel aftertreatment system operation. A reliable replacement for damaged, contaminated, or failing DOC filters in compatible Cummins B6.7 engines.

FITMENT CHART

YEARMAKEENGINE(S)
2022Cummins B6.7
2023Cummins B6.7
2024Cummins B6.7
2025Cummins B6.7
2026Cummins B6.7

PEOPLE ALSO ASKS | BLOG(S)

Exhaust temperature plays an important role in the diesel aftertreatment process, especially when downstream components require sufficient heat for effective operation. The Cummins B6.7 DOC Filter 2022-2026: OEM 5515594 uses diesel oxidation catalyst technology to promote chemical reactions that release heat, helping create suitable exhaust conditions for the diesel particulate filter (DPF) and other emissions control components.

  • OEM 5515594 is intended for compatible 2022-2026 Cummins B6.7 diesel applications.

  • Diesel Oxidation Catalyst (DOC) technology promotes oxidation reactions that help treat unburned hydrocarbons and carbon monoxide in diesel exhaust.

  • Exhaust heat generation occurs when hydrocarbons react with oxygen across the catalyst surface under suitable operating conditions.

  • Supports DPF regeneration by helping produce the elevated exhaust temperatures needed to burn accumulated soot.

  • Catalyst-coated substrate provides a large reaction area for oxidation as exhaust gases pass through the module.

  • Flow-through channel construction allows exhaust to move through the catalyst without trapping soot like a diesel particulate filter.

  • Thermal-resistant materials accommodate repeated heating and cooling cycles within the aftertreatment system.

  • Application-specific housing and connections help maintain proper installation and exhaust routing in compatible Cummins B6.7 systems.

The Cummins B6.7 DOC Filter OEM 5515594 provides an important oxidation stage that supports exhaust temperature management and downstream DPF regeneration. Customers searching for a Cummins B6.7 DOC filter, B6.7 diesel oxidation catalyst, Cummins DOC replacement, diesel exhaust catalyst, or OEM 5515594 can find this application-specific component at TamerX Diesel Parts for compatible 2022-2026 applications.

 

Problems with a Diesel Oxidation Catalyst (DOC) Filter can trigger aftertreatment system fault codes when the engine control module detects abnormal exhaust temperatures, regeneration conditions, or emissions system performance. Since the DOC helps oxidize exhaust pollutants and generate heat for Diesel Particulate Filter (DPF) regeneration, a damaged or contaminated catalyst can affect several downstream components.

  • DOC efficiency problems: A deteriorated catalyst may not produce the expected oxidation reaction, contributing to aftertreatment performance faults.

  • DPF regeneration faults: Reduced DOC effectiveness can prevent the exhaust system from reaching the temperatures required for successful DPF regeneration.

  • Abnormal exhaust temperatures: Temperature readings outside expected ranges may trigger diagnostic trouble codes related to aftertreatment operation.

  • Excessive soot accumulation: Poor DOC operation or related engine problems may contribute to DPF soot buildup and recurring regeneration warnings.

  • Exhaust restrictions: A clogged or internally damaged DOC Filter can increase exhaust backpressure and contribute to restriction-related fault codes.

  • Check engine light: Certain DOC-related problems may activate the check engine light or display an emissions system warning.

  • Related sensor faults: Faulty exhaust temperature sensors, pressure sensors, or damaged wiring can produce symptoms similar to DOC failure.

A faulty DOC Filter can contribute to aftertreatment fault codes, but a diagnostic code alone does not confirm that the catalyst needs replacement. Inspecting exhaust temperatures, DPF regeneration history, backpressure, sensor readings, and the DOC's physical condition can help identify the actual cause and restore proper emissions system operation.

The DOC helps break down unburned hydrocarbons that contribute to noticeable diesel exhaust odors. When the catalyst operates properly, it can reduce certain odor-producing compounds in the exhaust stream.

Light-off temperature refers to the temperature at which the catalyst begins achieving meaningful oxidation activity. Below this range, the DOC may be less effective at converting hydrocarbons and carbon monoxide.

Certain contaminants, including excessive sulfur, phosphorus, and other chemical residues, can interfere with the catalyst's active surfaces. Prolonged exposure may reduce oxidation efficiency and shorten the component's service life.

The DOC can convert a portion of nitric oxide into nitrogen dioxide through catalytic oxidation. Nitrogen dioxide can assist passive soot oxidation in the downstream Diesel Particulate Filter under suitable operating conditions.

Cummins DOC Filters