Bullydog Triple Dog GT Gauge & Tuner Diesel


Gain up to 140+ HP and 360 FT. TQ.


Increase Fuel Mileage and Great for Towing!
Add Pyrometer (Part 40384)


The Bullydog Triple Dog Gauge Tuner is a vehicle engine tuner, monitor, gauge and diagnostic device all in a single unit. The Bullydog GT tuner dramatically improves the utility of several vehicle applications by providing an increase in horsepower and torque and by improving fuel economy through better engine tuning. The Bullydog Triple Dog GT monitors and displays over fifteen different vehicle parameters (PIDs) and it includes our all new Driving Coach feature which teaches end users to maximize their vehicles fuel economy potential. The Bullydog GT tuner performs vehicle diagnostics by reading and erasing diagnostic trouble codes; this level of vehicle transparency isn’t offered by any OEM or by any other aftermarket product. Also included is our performance testing feature designed to test a vehicles performance capability on the drag strip; couple this with our Free PC analysis software and users can also determine vehicle horsepower. The Bullydog Triple Dog GT does it all and it works on most late model diesel pickups including Dodge, Ford and GM.





Click Here —>Product Information Sheet 

BullyDog GT Tuner 40420



  • Added horsepower and torque
  • BullyDog Tuners improve fuel economy
  • Safety Defueling
  • On-the-fly power level adjustment
  • Four different power levels to choose from
  • Easy installation (20-40 minutes)
  • BullyDog Triple Dog offers free internet updates and upgrades
  • Monitor and display vehicle parameters (PIDs)
  • Full Color display with multiple color themes
  • User set daytime and nightime driving modes
  • Display current gear on vehicles with auto trans.
  • Vehicle specific download features
  • Initiate DPF burnoff on ‘09 GM and Dodge diesel
  • Defuel based on user set safety parameters
  • Read and Erase Diagnostic Trouble Codes
  • Display instant fuel economy and trip fuel economy
  • Exclusive Driving Coach feature, Patent Pending


Performance Gauge Functions:

  • Real Time Fuel economy
  • Average Fuel economy
  • Trip Fuel economy
  • Load %
  • Coolant temperature
  • Fuel rail pressure (diesel vehicles)
  • Manifold absolute pressure
  • Engine RPM
  • Speed
  • Timing position
  • Air intake temperature
  • Mass Air Flow (grams/sec.)
  • Throttle position
  • Fuel level
  • Battery voltage
  • Ambient air temperature
  • Transmission temperature
  • Pyrometer #1 & 2 optional (diesel vehicles)
  • Boost (diesel vehicles)
  • IPW: injection pulse Width (diesel vehicles)
  • Barometer (diesel vehicles)
  • Oil temperature (diesel vehicles)
  • ICP: injection control pressure (diesel vehicles)



**    Add Optional Pyro Probe Kit (Part Number 40384)    **




Additional information

Weight 3 lbs
Dimensions 7 × 7 × 12 in

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