For more information contact:


Chris Kemmer, Consultant





Rich Carroll, V.P Sales & Marketing

Jost International



For Immediate Release



JOST International Introduces Sensor Coupling Systems


Grand Haven, MI (January 17, 2017) JOST International has introduced the JSK37USK series air-release fifth wheel with sensor technology.  The JSK37USK’s revolutionary Sensor Coupling System allows the driver to confirm that the fifth wheel is properly and safely coupled from inside the cab.   


“The streamlining associated with a variety of aerodynamic technologies will make physically accessing the 5th wheel for uncoupling, and visually confirming a safe couple, difficult at best. Consequently, the adoption of JOST cab actuated air release wheels on fleet-driven OEM builds is in full swing.” stated Rich Carroll, vice president sales and marketing.  “With this evolution of tractor trailer designs, JOST believes the automation of the coupling process is also inevitable. The next logical step in the automation of the coupling process is the JOST JSK sensor coupling system which will advance 5th wheels from reliable mechanical devices to the category of value adding ADAS technologies.”


The JSK37USK’s Sensor Coupling System contains dual sensors.  The first sensor verifies that the kingpin is in the lock position and the second sensor indicates that the fifth wheel is locked and the release handle secured.  The lock status can be shown either by a JOST supplied dash display or communicated through the vehicle’s CAN bus.


This evolution in tractor-trailer connections will culminate at some point with fully automated coupling systems (FACS) defined in an existing ISO international standard as coupling and uncoupling systems where all operations i.e. mechanical, electrical, pneumatic and applicable auxiliary functions are performed automatically.


JOST has been manufacturing fifth wheel coupling devices globally since 1956 and began manufacturing for the North America market in their Greeneville, Tennessee facility in 2000. In total JOST has supplied more than three million fifth wheels to the global market and there are now more than 450,000 on the road in North America.

JOST International ( is a global manufacturer of fifth wheels, landing gear and king pins. For more information call 1-800-253-5105


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