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Home » Brand Line Card » Bully Dog Tech

Product ID: BD-40465B
Manufacturer: Bully Dog
Bully Dog: Watchdog GTX Monitor
Bully Dog: Watchdog GTX Monitor
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GTX Watchdog

Bully Dog's GTX Watchdog, optimized for 2013-2016 Dodge Cummins vehicles, is a revolutionary leap forward in performance monitoring-loaded with features and our most advanced hardware to date. GTX Watchdog starts up incredibly fast (even when remote starting the vehicle), and is super responsive, sporting a 5-inch capacitive touch screen that rivals today's smart phones. Optimized for Cummins, GTX Watchdog gives drivers the ability to monitor the industry's most extensive SAE and Cummins-specific PIDs, or engine parameters, on an easy-to-use device. High-resolution customizable gauges and WiFi connectivity add to the truly unparalleled user experience.

Drivers can log vehicle performance data as they drive-and play it back later using Bully Dog's free LiveLink software. GTX Watchdog also gives users greater insight into their truck by reading out and clearing Diagnostic Trouble Codes (DTCs). Bully Dog's unique grab n' go magnetic mounting system allows the device to be kept front-and-center while driving, and then quickly stowed away when not in use. Finally, for those who want to take their truck to the next level, GTX Watchdog can unlock 2013-2016 Cummins vehicles (including chassis cab) for tuning using the included Bully Dog Cummins Unlock Cable.


Features vary for each vehicle and are not available on all vehicles


Bully Dog's 5" capacitive touchscreen is the first of its kind. Graphics and gauges are displayed in brilliant HD color, rivaling today's smart phones. GTX Watchdog starts up incredibly fast (even when remote starting the vehicle), and provides an ultra-responsive user experience. A fully customizable user interface means your perfect gauge layout is available at the touch of the screen. GTX Watchdog comes standard with a convenient grab n' go magnetic mounting system, enabling drivers to keep their device front and center-and then stowed away in seconds.


The lightning-fast GTX Watchdog gives drivers the ability to monitor the industry's most extensive SAE and Cummins-specific engine and transmission parameters, in real time. Unlike competitors, the GTX Watchdog provides monitoring capability of the Aisin & 68RE transmission, as well as chassis cab vehicles. The device's datalogging capability makes it easy to record vehicle performance and play it back with Bully Dog's free LiveLink software. GTX Watchdog also doubles as a diagnostic tool with the ability to read and clear diagnostic trouble codes (check engine light). With integrated WiFi capability, GTX Watchdog is always up to date.



With the included Bully Dog Cummins Unlock cable, 2013--2016 Dodge Cummins owners can use the GTX Watchdog to unlock their truck's computer for tuning. Bully Dog's BDX and GT Diesel offer preloaded tuning for the 2013-2016 Cummins. The Unlock provided by the GTX Watchdog is also compatible with other custom tuning solutions, enabling drivers to choose the best option to match their needs. Bully Dog does not currently offer custom tuning for Cummins.



Accelerator Pedal Position 
Accelerator Pedal Position (Relative)| 
Actual Engine % Torque| 
Altitude Adjust Table Select High*| 
Altitude Adjust Table Select Low*| 
Ambient Air Pressure 
Ambient Air Temperature  
Barometric Pressure 
Battery Voltage 
Charge Cooler Temperature| 
Charge Flow 
Charged Air Cooler Outlet Temp 
Compressor Inlet Density 
Compressor Outlet Temp 
Diesel Exhaust Fluid Line Press 
Diesel Particulate Filter Press 
DPF Operating State 
DPF Soot Level| 
Drivers Demanded Engine % Torque| 
EGR Cooler Efficiency 
EGR Flow Rate 
EGR Position 
EGR Temperature*| 
EGR Valve Position 
EGT-1 DOC Inlet Temperature 
EGT-2 DOC Outlet Temperature 
EGT-3 DPF Outlet Temperature
EGT-4 SCR CAT Mid-Bend Temperature 
EGT-5 SCT CAT Outlet Temperature 
Engine Coolant Temperature 
Engine Load (Absolute) 
Engine Speed 
Engine Torque 
Engine Torque Actual| 
Engine Torque Control| 
Engine Torque Desired| 
Exhaust Pressure* 
Fuel Control*| 
Fuel Level Remaining 
Fuel Pressure Reg Current| 
Fuel Rail Pressure (Actual) 
Fuel Rail Pressure (Commanded) 
Horsepower (Rotational) 
Injector Duty Cycle - Bank 1| 
Injector Duty Cycle - Bank 2| 
Intake Manifold Temperature| 
Intake Throttle Position| 
Line Pressure 
Main Injection Fuel Quantity| 
Main Injection Time| 
Main Injection Timing*| 
Mass Air Flow  
MPG (Average) 
MPG (Instant)
Oil Pressure*| 
Pedal Position 
Pilot Timing*| 
Post 1 Fuel Quantity| 
Post 2 Fuel Quantity| 
Post 3 Fuel Quantity| 
Post 4 Fuel Quantity| 
Post Timing*| 
Radiator Fan Speed 
Regen State| 
Throttle Pos (Actual) 
Throttle Pos (Commanded) 
Torque Converter Clutch 
Transmission Gear (Actual) 
Transmission Gear (Commanded) 
Transmission Oil Temperature 
Turbine Speed 
Turbo Boost 
Turbo Compressor Inlet Temp 
Turbocharger Speed 
Vehicle Odometer 
Vehicle Speed 
VGT % Closed (Commanded) 
VGT Actual Position| 
VGT Desired Position*| 
VGT Actuator % Closed (Commanded)
* Unique to GTX Watchdog 
| Requires EFI Live

Note: monitor up to 2 external sensors, sold separately


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List Price: $499.00
Price: $499.00

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