EAS4 Peterbilt EAS4 Paccar MX EGR Removal Emulator
Plug-in EGR removal emulator for Peterbilt trucks with Paccar MX-11 and MX-13 engines — permanently eliminates carbon build-up faults, EGR sensor errors and power derate by simulating all EGR signals to the EAS4 ECU.
The Peterbilt EAS4 EGR Removal Emulator is engineered specifically for Paccar MX-11 and MX-13-powered heavy-duty trucks, where the Exhaust Gas Recirculation system is a well-documented source of chronic carbon build-up, differential pressure sensor faults and progressive combustion efficiency loss under sustained heavy-load and long-haul operation. As EGR passages coke up over time, the result is power derate, limp mode activation and escalating repair bills. This plug-in EGR removal emulator electronically simulates EGR valve position, differential pressure feedback and EGR cooler temperature signals to the EAS4 ECU, permanently preventing fault codes and keeping the engine at full rated output.
How Does It Work?
The emulator connects into the existing EGR harness connector without any cutting or soldering. Once installed, it continuously simulates the EGR valve position sensor signal, EGR differential pressure feedback and EGR cooler temperature sensor data that the EAS4 engine control unit monitors. The ECU registers the EGR system as operating normally at all times — no fault codes are raised, no safety mode is engaged and the engine runs at full capacity. The installation process has been simplified so that it does not require specialist programming or calibration tools.
Frequently Asked Questions
Is this emulator compatible with both Paccar MX-11 and MX-13 engines?
The emulator has been developed for both Paccar engine families. We recommend verifying compatibility against your vehicle VIN and specific EAS4 ECU version before installation.
Does installation require any vehicle-specific software or calibration?
No. The emulator operates on a true plug-and-play basis — once connected to the original EGR harness socket, no additional software programming or parameter input is needed.
What is the warranty period?
All our products are supplied with a 2-year manufacturer warranty. Contact us for details of warranty coverage and the returns process.
Is international shipping available?
Yes — domestic and international shipping options are both available. Delivery timescales and conditions for your destination country will be confirmed at the time of order.
Supported Models
This emulator is compatible with the following models that share the same ECU platform:
