EMRT Professional SCR & NOx Emulator – DAF LF & Cummins QSB
"Quick Connect" Plug & Play Solution for LF45, LF55, and Bus Chassis
The EMRT Professional DAF LF / Cummins QC Emulator is a high-performance, non-invasive recovery tool designed for engines utilising the Cummins QSB4.5 and QSB6.7 platforms. Featuring a factory-spec "Quick Connect" interface, this module allows for an instant bypass of the SCR architecture, restoring full engine torque in seconds—even if the Grundfos/Emitec pump has suffered a total electrical failure.
Key Features
Instant QC Integration: A true Plug & Play hardware interface. Simply connect to the factory loom for an immediate bypass of the aftertreatment system. No cutting or soldering required.
Full System Emulation: Provides high-fidelity digital reporting for the entire aftertreatment circuit, allowing the vehicle to operate at 100% power without the SCR hardware being present or functional.
Grundfos/Emitec Specialisation: Specifically engineered to replace the failure-prone pump units common in Australian-spec DAF LF delivery trucks and regional school bus fleets.
Automatic Activation: Features smart-sync technology that automatically activates and communicates with the Cummins Engine Management System upon connection.
Ruggedised & Waterproof: Housed in a fully resin-sealed, waterproof casing designed to survive the high-vibration and road-grime environments of urban and regional routes.
Emulated Components
This module provides high-fidelity digital reporting for:
AdBlue Pump Unit (including internal pressure sensors).
NOx Sensor (Digital CAN-bus signals).
AdBlue Tank Sensors (Level and Temperature).
SCR ECU (The primary control unit).
Compatible Models & Engines
Designed for Cummins QSB4.5 and QSB6.7 Euro 4 and Euro 5 engines:
DAF Trucks: DAF LF45 (QSB4.5) and DAF LF55 (QSB6.7).
DAF CF Series: CF models utilising the Cummins QSB6.7 platform with Grundfos pumps.
Bus & Coach: All AU/NZ bus chassis utilising the Cummins QSB platform (including BCI, Volgren, King Long, and Bustech).
Installation Overview
Installs in seconds:
Disconnect the power/data plug from the faulty SCR pump or ECU.
Connect the EMRT Professional QC Emulator directly to the vehicle harness.
Done. The engine will now receive "System Normal" signals and restore full torque.
SCR Emulator for DAF LF Euro 4/5 & Buses with Cummins QSB4.5, QSB6.7 Engines
- 1 x EMRT SCR Emulator QC for DAF LF / Cummins QSB (EMRT_DcomEM_LF_E5_QC).
- 1 x Quick-Start Installation Guide.

