5508583 | Genuine Cummins® DEF Doser Injector for ISB and QSB engines

Description and Purpose:

This Genuine Cummins DEF Doser Injector with Part number: 5508583, is supplied in new condition and specifically designed for ISB and QSB engines meeting EPA21 standards. The injector plays a critical role within the SCR aftertreatment system, accurately introducing Diesel Exhaust Fluid into the exhaust stream for proper NOx reduction. Its robust build ensures consistent spray patterns and dependable dosing performance. Cross reference: 5508583NX, 5508583RX, 5508583RXCUM

Why Replacement is Important:

A clogged or malfunctioning injector disrupts DEF atomization, leading to incomplete emission treatment and potential system faults. Timely replacement ensures compliance and avoids derate scenarios.

Impact on Vehicle Performance:

Accurate DEF injection maintains stable engine operation, prevents power loss, and helps heavy-duty trucks operate within strict emissions limits.

Manufacturer Information:

Cummins® stands at the forefront of engine innovation, providing dependable power solutions built for strength, efficiency, and long-term reliability.

Tags & Category: DEF Doser Injector, Cummins, ISB engines, QSB engines, EPA21 emissions, diesel exhaust fluid injector, SCR system injector, aftertreatment dosing injector, DEF dosing valve, OEM Cummins injector, emissions control component.

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.