Iveco FPT 6.7L Doser DEF Pump 2008-2020: OEM 50438

Precision DEF Dosing for Iveco FPT 6.7L Engines (2008–2020)

What is it?
The Iveco FPT 6.7L Doser DEF Pump (2008–2020), identified by OEM part number 50438, is a Diesel Exhaust Fluid (DEF) dosing module designed for Iveco 6.7-liter FPT diesel engines produced between 2008 and 2020. This pump is responsible for delivering measured amounts of DEF into the exhaust stream so nitrogen oxides (NOx) can be chemically converted into nitrogen and water within the SCR (Selective Catalytic Reduction) system.

Why choose this Doser DEF Pump?
This DEF pump is engineered to match Iveco’s original specifications for the FPT 6.7L platform, ensuring accurate fitment and seamless integration with the engine’s aftertreatment system. When the DEF dosing pump fails or delivers improper fluid volumes, it can disrupt NOx conversion, trigger emissions warnings, or cause uneven aftertreatment behavior. Using the correct OEM-specified pump helps ensure dependable DEF delivery and supports coordinated SCR operation.

Key Benefits
✅ Designed for Iveco FPT 6.7L SCR systems (2008–2020)
✅ Helps deliver precise DEF metering for NOx conversion
✅ Supports coordinated emissions response with engine controls
✅ Direct replacement — no modifications required
✅ Built to withstand daily use and harsh exhaust environments

Applications
This DEF doser pump is suitable for medium- and heavy-duty vehicles and equipment powered by Iveco FPT 6.7L engines from 2008 through 2020. It’s commonly found in commercial trucks, vocational rigs, regional transport vehicles, buses, and other diesel platforms where DEF dosing and regulated emissions handling are essential to operation.

Installation Notes
Before servicing, make sure the aftertreatment system and exhaust components have cooled completely to avoid injury or damage. Relieve pressure in the DEF delivery lines, then disconnect electrical connectors and fluid lines from the existing pump. Remove the pump from its mount and inspect surrounding lines and harnesses for wear or contamination. Install the replacement pump with proper seals and fasteners, reconnect all fluid and electrical connections, and then clear any stored system codes. After installation, verify correct DEF dosing and SCR function with diagnostics.

Final Thoughts
If your Iveco FPT 6.7L-equipped vehicle is experiencing NOx-related fault codes, uneven DEF usage, or irregular aftertreatment performance, replacing the doser DEF pump with the correct OEM-specified unit can help restore accurate fluid metering and smoother SCR operation. The Iveco FPT 6.7L Doser DEF Pump (OEM 50438) plays a key role in dependable emissions control across varied duty cycles.