5506855 | Genuine Cummins® Doser Injector for ISB and QSB engines

SKU: 5506855 MPN: 5506855

Enhance system reliability using Genuine Cummins DEF Doser Injector 12V. Condition: new. Part number: 5506855. Compatible with ISB and QSB engines EPA21. An essential part for efficient emissions reduction.

$629.00
No Core Charge
3 in stock

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Contact us to check if overnight next-day delivery is available for your order - PN: 5506855

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Product Description

Product Name Doser Injector Product Name Doser Injector
Condition New Condition New
Brand Cummins® Brand Cummins®
Part Number 5506855 Part Number 5506855
Cross Reference 5506855RX, 5506855NX Cross Reference 5506855RX, 5506855NX
Interchange Part Number 5472967 Interchange Part Number 5472967
Engine Compatibility
Cummins ISB, QSB Cummins ISB, QSB
Emission Compliance EPA21 Emission Compliance EPA21
Specifications
Voltage 12V Voltage 12V

Useful Information

Description and Purpose:

The Genuine Cummins Doser Injector, identified under Part number: 5506855, arrives in new condition and is designed for ISB and QSB engines meeting EPA21 standards. Operating on a 12V system, this precision injector controls the delivery of diesel exhaust fluid into the SCR system, ensuring accurate dosing and consistent aftertreatment efficiency. Cross reference: 5506855RX, 5506855NX.

Why Replacement is Important:

When a dosing injector malfunctions, DEF cannot be properly supplied to the exhaust stream, leading to failed emissions control, possible derates, and system faults. Replacing it with a Genuine Cummins part restores proper operation and keeps your vehicle within regulatory limits.

Impact on Vehicle Performance:

Accurate DEF injection ensures stable SCR efficiency, improved emissions control, and prevents costly downtime caused by compliance-related restrictions.

Manufacturer Information:

Cummins® is a global power leader recognized for durable engines and advanced technologies that drive performance in demanding applications.

Tags & Category: Doser Injector, DEF Injector, 12V, Cummins, ISB, QSB, EPA21, Aftertreatment System, SCR System, Diesel Exhaust Fluid, Emissions Control, OEM Cummins Part, DEF Dosing Valve, Heavy Duty Engine, aftertreatment fuel injector.

Warranty:

Parts Finder Q offers a 365-days warranty for all types of parts in any condition. The -warranty applies exclusively to purchases made directly through our website (partsfinderq.com). Please note that purchases made through third-party platforms like eBay or Amazon are not covered by this warranty.

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  • Icon Truck, Fast Delivery
    Free shipping over $199 Place an order today and receive it on Mar 6
  • Clock Icon
    Orders placed before 7-PM EST will ship same business day
  • Location icon, warehouse pickup point.
    Pickup available usually ready in 24 hours
  • Need it fast? We offer overnight shipping

    Contact us to check if overnight next-day delivery is available for your order - PN: 5506855