EMRT Professional SCR / DOC Emulator – Liebherr Dozers and Tractors
Tier 4 Final / Stage IV Solution (ECU2 Controller)
 
The EMRT Professional SCR / DOC Emulator is a high-performance, dedicated solution for Liebherr PR-series Dozers and Tractors equipped with D9xx A7 04 engines. Engineered for the heavy vibrations and high-stress environments of bulk earthworks, this unit provides a complete bypass of the SCR and DOC systems, ensuring your machine maintains maximum pushing power without AdBlue-related derates.
 
Key Features
Full SCR & DOC Emulation – Replaces the signals for the AdBlue dosing and oxidation catalyst systems, preventing performance loss and "Limp Mode."
True Plug & Play – Rapid installation with no wire cutting or soldering required; the unit is ready to utilise immediately.
Automatic Derate Cancellation – Torque reduction is disabled automatically. No diagnostic tool or software reset is required to restore full engine performance.
ECU2 System Test Support – Fully supports the specialised internal SCR system tests performed by the Liebherr ECU2 controller for a seamless interface.
Ruggedised Industrial Build – 100% waterproof and manufactured with industrial-grade components to survive the extreme dust and heat of mining and civil sites.
 
Critical Installation Requirement
Important: When installing this emulator in Liebherr Dozers and Tractors, the upstream NOx sensor (at the catalyst inlet) must be fully functional and remain operating in its original factory configuration.
 
Emulated Components
NOx Sensor (Downstream)
Urea Dosing Pump & Injector
Urea Level and Quality Sensor
NH3 (Ammonia) Sensor
3 × Exhaust Temperature Sensors
 
Compatibility
Liebherr Engines (ECU2 Controller):
D934 A7 04 / D936 A7 04
D944 A7 04 / D946 A7 04
 
Compatible Dozer Models:
PR726, PR736, PR746, PR756, PR766, PR776
 
Operation
Install the device according to the provided manual.
Start the dozer and allow the engine to reach operating temperature.
Reset: All SCR/DOC faults will automatically become inactive, and full torque will be restored.