J. J. Keller® Encompass® Fleet Management System ELD Harnesses & Adapters
J. J. Keller® Encompass is the industry’s most versatile fleet management system. To support this versatility, we offer a variety of adapters to fit the unique needs of your fleet.
Select your ELD harness and/or harness adapter based on the manufacturer and model year of your vehicle(s).
| JBus Adapters | 16-Pin OBDII Adapters | Telematics Harness | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 6-Pin | 9-Pin | 9-Pin Locking Nut | Class 1–6 | HD–Mack/Volvo | RP 1226 | ||||
 50098 |  50101 |  50102 |  51521 |  51522 |  56439 |  50100 |  50099 |  57057 | |
| Manufacturer | Model Year | ||||||||
| Daimler/Freightliner Cascadia | 2009–2016 | 2017–2020 | |||||||
| Daimler/Freightliner LT Series | < 2005 | 2006–2009 | |||||||
| Daimler/Freightliner M2 & Columbia CL Series | 1993–2008 | 2005–2016 | |||||||
| Daimler/Sterling | 1996–2006 | 2006–2011 | |||||||
| Ford F550 & below | 1997–2020 | ||||||||
| Ford LN & F550 & up | 1994–2015 | ||||||||
| Freightliner | < 2005 | 2006–2015 | 2015–2020 | 2019–2020* | |||||
| GMC/Chevrolet 4500 & up | 1995–2016 | ||||||||
| GMC/Chevrolet 5500 & below | 1997–2020 | ||||||||
| Hino/Toyota | 2006–2020 | 2013–2020 | |||||||
| International | 1993–2014 | 1995–2016 | 2017–2020 | ||||||
| Isuzu FTR/FVR | 2003–2009 | 2005–2009 | |||||||
| Isuzu NPR/NQR/NRR | 2012–2017 | ||||||||
| Kenworth | 1987–2005 | 2010–2016 | 2016–2020** | Oct. 2018–2020*** | Oct. 2018–2020*** (requires use of switched power adapter [sold separately]) | ||||
| Mack | 1991–2012 | 1996–2016 | 2016–2020 | 2014–2020 | |||||
| Mercedes Sprinter | 2011–2017 | ||||||||
| Motor Coach Industries | 1994–2000 | 2005–2016 | |||||||
| Peterbilt | 1987–2005 | 2010–2016 | 2016–2020** | Oct. 2018–2020*** | Oct. 2018–2020*** (requires use of switched power adapter [sold separately]) | ||||
| Prevost | 1993–2006 | 2005–2016 | |||||||
| Ram 5500 & below | 2007–2017 | ||||||||
| Volvo VNL | 1999–2015 | 2003–2016 | 2016–2020 | 2014–2020 | |||||
| Western Star | 1995–2008 | 2005–2016 | 2017–2020 | ||||||
*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.
***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.