Product Details

PACCAR Davie 4 Engine Diagnostic Software
Item: Davie4-Opt 1
List Price:
Our Price: $3495.00
Your Savings:


PACCAR Davie 4 MX engine factory diagnostic software.  Covers Paccar MX engines through the present model year.  Davie 4 software is installed & authorized prior to shipment to your location.  Paccar technical support included at no extra charge.  Software updates are available whenever the DAVIE 4 is open.

We offer two options:

1. You ship your computer to our facility for software installation & Paccar activation.  

2. We supply either a new or refurbished laptop computer, if needed, at an extra charge. Contact us with any questions at

Covers PACCAR MX electronic engines thru the present model year. 

Fleet Davie 4 contents:

Software only



  • Perform and read diagnostic tests
  • Enable Progressive Shifting
  • Enable Park Brake Reset
  • Enable Air Temp Idle Timer Override
  • Idle Time In PTO Mode
  • Enable Clutch Pedal Position Timer Reset Condition
  • Time Remaining To Shut Down After EIST Warning
  • Enable Accelerator Position (as timer reset condition)
  • Enable Foot Brake Position (as timer reset condition)
  • Enable Clutch Pedal (as timer reset condition)
  • Enable EIST in PTO mode
  • Read, reload & download all snapshot & trip reports
  • Read all chart recorder items
  • Read & clear all fault codes
  • Download all log files into Excel or PDF files
  • Particulate Trap Regeneration
  • Road Speed (Paccar charges fee per truck)
  • Limitations:

    • Cannot reprogram engines

    Customer supplies computer, interface & cables

    Requirements: Win 7 Pro or Win 10 Pro only (32 bit recommended), 4 GB RAM, 40 GB HD (20 GB free), 2.5 MHz Processor, USB, Ethernet.


    1. Only for sale to end-user. PACCAR requires company name, owner/principal name & contact information to process this order. Place info in comment section when placing order.

    2. Davie 4 has only been tested using Nexiq USB Link 2; no other data modules have been approved.

    3. We must have your computer (or we can supply one, new or refurbished, at an extra cost) to have Paccar install the software.

    4. PACCAR will supply technical support

    5. Davie 4 requires internet connection while operating

    6. Payments using wire transfer save you $90.00

    7. Shipping will incur an additional charge depending on the weight & size of the computer

    PACCAR reserves the right to change / update software or hardware without prior notice.