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Bully Dog Performance Parts
Bully Dog 40420
Bully Dog 40420 Triple Dog GT Diesel - Black 600x600
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Bully Dog 40420
Triple Dog GT Diesel Gauge/Tuner

• Improves fuel economy
• Increases horsepower and torque
• Calibrates speedometer
• Free software program
• Read-erase trouble codes
• Safety warnings and diesel defueling
• Monitoring capabilities
Our Price: $594.99
UPC 681018404204
Free Shipping and Handling for orders over $99!
(US only. Excluding any oversize charges.)
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1Estimated Shipping Dates are based on available inventory and the nearest warehouse.
Performance Parts is a Bully Dog authorized performance retailer
Product Info Related Items
Application: Chevy/GMC: 2006-2014 Express/Savana 6.6L; 2006-2010 Kodiak/Topkick 6.6L; 2001-2014 Silverado/Sierra 6.6L
Dodge: Ram 2500/3500/4500/5500 2003-2007 5.9L, 2007-2014 6.7L (2013-2014 requires PCM unlock #42214)
Ford: Excursion 2003-2006 6.0L, 1999-2003 7.3L; F-250-550 2003-2007 6.0L, 2008-2010 6.4L, 2011-2014 6.7L, 1999-2003 7.3L
Triple Dog GT Diesel Gauge/Tuner

• Improves fuel economy
• Increases horsepower and torque
• Calibrates speedometer
• Free software program
• Read-erase trouble codes
• Safety warnings and diesel defueling
• Monitoring capabilities

Bully Dog 40420 is four products in one unit: a vehicle engine tuner, monitor, gauge, and diagnostic device. The Triple Dog FT increases horsepower, improves fuel economy, and provides a comprehensive set of monitoring features and diagnostic functions.

Bully Dog 40420 has the largest feature set and the widest range of vehicle applications from a single product. The free software program will download performance tests that were performed on the device to a PC and allow the user to analyze speed curves, RPM, horsepower, and torque.

Depending on your vehicle application, the Triple Dog GT provides you with monitoring capabilities for any of the following parameters your vehicle can access: diesel defueling, speed, engine RPM, coolant temperature, real time fuel economy, battery voltage, etc.

For example, the Calibrate Speedometer feature is useful on some models to correct an OEM speedometer that is reading inaccurately due to an aftermarket tire size.


Not legal for sale or use in California on pollution-controlled vehicles.
Shipping Weight/Dimensions:
Weight:2.00 lbs
Height:10.00 in.
Length:12.00 in.
Width:4.00 in.
Shipping from warehouses in the U.S. and Canada!
Performance Parts has over 20 warehouses in the U.S. and Canada so you can get your parts duty free! Call for availability.
Bully Dog 30420
$12.95
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Bully Dog 42214
$40.00
GT Diesel Unlock Cable - 13-14 Dodge Ram 2500/3500/4500/5500 6.7L Cummins

• Use with GT Diesel tuner
• Increases horsepower and torque
• Calibrate speedometer
• Free software program
• Made in USA
- Last Updated: 2016-06-15 14:39:32 -
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