8-98185-743-0 | Genuine Isuzu® Def Doser Injector

Description and Purpose:

This OEM DEF Doser Injector with Part Number: 8-98185-743-0 is a new emission control component. Brand: Isuzu. Designed for commercial trucks such as the FTR, NPR-HD, NPR-XD, NQR, and NRR (2011–2025) equipped with Cummins engines, it delivers precise amounts of diesel exhaust fluid into the SCR system to reduce NOx emissions. Its function is critical to ensure legal emissions compliance and optimal engine performance. Cross reference: 8-98185-743-1, 8-98185-743-2, 98185743.

Why Replacement is Important:

A faulty DEF injector can lead to improper dosing, triggering warning lights, fault codes, and vehicle derating. Replacing the injector ensures accurate DEF delivery, restoring normal operation and preventing costly downtime or emissions violations.

Impact on Vehicle Performance:

A properly functioning DEF doser injector supports clean combustion by enabling the SCR system to neutralize harmful exhaust gases. It contributes to consistent power delivery, efficient fuel usage, and extended emission system life in heavy-duty applications.

Manufacturer Information:

Isuzu® delivers rugged trucks and powertrains trusted worldwide for their endurance in demanding conditions.

Tags & Category: DEF Injector, SCR Injector, DEF Doser, Urea Injector, DEF System, Emission Control, Diesel Emission, Doser Valve, DEF (SCR) Injectors

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.