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USD 499
Part #: BT40465B

Bully Dog 40465B GTX Watchdog With Unlock Cable

2013-2016 Dodge 6.7L Cummins
Part #: BT40465B
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Unlock your 2013-2016 Dodge 6.7L Cummins and monitor your engine performance with the Bully Dog 40465B GTX Watchdog With Unlock Cable.
Optimized for your Cummins, the GTX Watchdog helps you monitor key engine parameters in an easy-to-use, super-responsive touch screen device with customizable gauges and WiFi capability. The GTX Watchdog starts up incredibly fast, even when remote starting the vehicle, so you can hop in and quickly get to driving. 

Additionally, GTX Watchdog has many more PIDs than any other monitoring device on the market, allowing you to measure more of the vehicle parameters you demand. Get greater insight into critical vehicle parameters such as boost, fuel rail pressure, main injection timing, VGT actual position and exhaust gas temps (EGT probe sold separately). The GTX also allows you to log vehicle performance data, and play it back later using Bully Dogs free LiveLink software. 

The GTX Watchdog also gives you greater insight into your truck by reading out and clearing Diagnostic Trouble Codes (DTCs). Bully Dogs 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.  
Need more capability? Included with the GTX Watchdog is the Bully Dog Cummins Unlock Cable, this allows you to unlock your factory ECM so you can install tuning of your choice. 

  • 5" Touch Screen
  • Unlocks 2013+ Models (Cable Included)
  • On-Screen Gauges Display Numerous PIDs
  • Reads & Clears Diagnostic Trouble Codes (DTCs)
  • Convenient "Grab & Go" Magnetic Mounting System 
  • On-Screen Data Logging & Playback Using LiveLink Software
Note: While optimized for 2013-2016 Dodge Ram 6.7L Cummins, this GTX Performance Monitor can also work on many other OBDII vehicles. Pyrometer probe not included, see related items below. 


  • MFG. Number 40465B
  • Manufacturer Name Bully Dog Technologies
  • Shipping Weight 3.00 lb.
  • Shipping Length 4 in.
  • Shipping Width 6 in.
  • Shipping Height 7 in.
  • Fuel Type Diesel
  • UPC 681018404655
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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Most Popular Questions

Can you load a tune on to this?
View Staff Answer 
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.
XDP continues to closely monitor the COVID-19 (Coronavirus) outbreak. As an integral part of the automotive supply chain, at this point all call centers and distribution centers remain fully operational to ensure we keep vital service components flowing to vehicles used in transport of goods and emergency response. To ensure the health of our employees, families, and customers, we have made the following procedural changes:

  • UPDATE: Effective 6/1 Customer Service resumes normal business hours of M-F 8:30 – 9:00pm EST.
  • Effective 3/18 we have decided to temporarily close both of our retail stores in NJ and NV.
  • Our technical sales team remains available Mon-Fri 8:30am-9pm and Saturday 10:30am-7pm EST.
  • All employees have been encouraged to follow the CDC's recommendations at home and in the workplace.
The circumstances of this virus are fast moving, as such, we will continue to update you with any further operational adjustments as needed. As always, we value your business and appreciate your patience as we manage this situation together.