Bully Dog 40420

Triple Dog GT Diesel Power Programmer, 49-state Legal

Availability: In Stock

Brand New Includes One Year Warranty

Returnable Item: 30 Day Guarantee i

Reg. Price:$684.99
Sale Price: $594.99
  • Technical Features

Technical Features for Bully Dog 40420

The Bully Dog 40420 is a vehicle engine tuner, monitor, gauge and diagnostic device all in one unit. The remarkable GT boosts for regular and premium gasoline that transforms the utility of your vehicle thereby increases horsepower and improves fuel economy. The driving coach is a special new feature designed to help drivers drive more efficiently.

This coach is fully customizable and allows the users to set fuel economy goals and helps to improve driving habits. The triple dog GT tuner(49-state legal) includes a custom windshield mount and features a universal T-socket style mount that works with most off-the-shelf mounting styles.

Factory Information:
PDF Download PDF Download
40420 Features:

  • GT Diesel Power Programmer
  • On-The-Fly Power Level Adjustment
    - Maximizes Power & Economy
  • Exclusive Driving Coach
    -Helps You To Improve Fuel Economy
  • Custom Tunes For Regular & Premium Gasoline
  • Instant View Of Fuel Economy & Trip Fuel Economy
  • Monitors & Displays Real Time Vehicle Parameters
  • User Set Daytime & Nighttime Driving Modes
  • Display Current Gear On Vehicles w/ Auto Trans
  • Horsepower & Torque Tuning w/ 4 Different Power Levels
  • 49-State Legal
  • Free Internet Updates & Upgrades
  • Quickly Read & Erase Diagnostic Trouble Codes
  • Easy To Install
  • Includes Custom Windshield Mount
    - Features A Universal T-Socket Style Mount

Fits the following models:


  • 2003-2007 Dodge Cummins 5.9L
  • 2007.5-2013 Dodge Cummins 6.7L


  • 2003-2007 Ford Super Duty 6.0L
  • 2008-2010 Ford Super Duty 6.4L
  • 2011-2014 Ford Super Duty 6.7L
  • 1999-2003 Ford Super Duty 7.3L


  • 2011-2014 GMC Chassis-Cab (LGH) 6.6L
  • 2006-2010 GMC Savana 6.6L
  • 2001-2007 GMC Sierra 6.6L
  • 2011-2014 GMC Sierra 6.6L
  • 2006-2010 GMC Topkick 6.6L


  • 2011-2014 Chevrolet Chassis-Cab (LGH) 6.6L
  • 2006-2010 Chevrolet Express 6.6L
  • 2001-2007 Chevrolet Silverado 6.6L
  • 2011-2014 Chevrolet Silverado (LML) 6.6L
  • 2006-2010 Chevrolet Topkick / Kodiak 6.6L

The Bully Dog 40420 has many exciting features for users of all types. You can extend the lifetime of your Bully Dog 40420 with the purchase of a FactoryOutletStore Extended Warranty. See the Bully Dog 40420 product video and gallery images above for more details. FactoryOutletStore stocks a full line of accessories like 5 ft. HDMI and Power Wire Ext. Kit, A-Pillar Mount for 03-07 Ford, and A-Pillar Mount for 03-09 Dodge for the Bully Dog 40420. The Bully Dog 40420 is sold as a Brand New Unopened Item.

As an email member, look forward to:

  • Exclusive email discounts
  • Private sales events
  • New product launches
  • Product maintenance guides
  • And much more!
Free Same Day Shipping
20-75% off FREE Same Day Shipping Ends Tomorrow
FactoryOutletStore.com Copyright © 2005-2016
Join now to receive special offers and promotions
All logos displayed on this page are registered trademarks with their respective organizations.

Thank you
for signing up!

As an email member, look forward to:

  • Exclusive email discounts
  • Private sales events
  • New product launches
  • Product maintenance guides
  • And much more!
Search Tips
Search for typos and double-check your spelling

Try to use different keywords

Search using more general keywords