J. J. Keller® Encompass® Vehicle Tracking Harnesses

Select your vehicle tracking harness based on the manufacturer and model year of your vehicle(s).

6-Pin Heavy-Duty Harness 9-Pin Heavy-Duty T-Harness Kit 14-Pin RP1226 Harness Mack/Volvo Harness Kit OBDII Universal T-Harness Kit
Manufacturer Model Year
All Light Duty         1997–2021
Daimler/Freightliner 1993–2008 2005–2021 2019–2021*    
Ford F150-F550         1997–2021
Ford LN & F550 & up 1994–2011 2012–2021      
GMC/Chevrolet 4500 & up   1995–2021      
GMC/Chevrolet 5500 & below         1997–2021
Hino/Toyota         2013–2021
International 1993–2007 1995–2021      
Isuzu FTR/FVR/NPR/NQR/NRR   2008–2009     2005–2021
Kenworth 1987–2002 2003–2021 Oct. 2018–2021**    
Mack 1991–2012 1996–2021 2018–2021 2014–2021  
Mercedes Sprinter         2011–2017
Peterbilt 1987–2005 2010–2021 Oct. 2018–2021**    
Prevost 1993–2006 2005–2021      
Ram 5500 & below         2007–2017
Volvo     2018–2021 2014–2021  
Volvo VNL 1999–2015 2003–2021      
Western Star 1995–2008 2005–2021      

*Freightliner 2019–2020, models M2 106, M2 112, 108 SD and 114 SD, may use the RP 1226.

**Paccar (Peterbilt and Kenworth) – Cab size > 2.1 meters.

Disclaimer: While every attempt has been made to ensure the accuracy of this information, there may be exceptions. Therefore, we recommend that you or the vehicle's owner visually inspect the vehicle's diagnostic port connection to verify the proper harness connector required.