The invention relates to a coupling mechanism (100) for damping oscillations between a tractor (300) and an agricultural implement during transport thereof; said coupling mechanism comprising: a top link, said top link is having a front end (4) configured to be pivotally mounted on a rear end (6) of a tractor; and said top link is having an opposite rear end (8) configured to be pivotally mounted on three point linkage (10) of an agricultural implement; wherein said top link is comprising a hydraulic actuator (38), said hydraulic actuator is having a front end (40) and a rear end (42); said hydraulic actuator is being arranged between the front end and the rear end of said top link so as to allow altering the effective distance between the front end and the rear end of said top link; a first lift arm (12) and a second lift arm (14); said first lift arm and said second lift arm (12, 14) each having a front end (16) configured to be pivotally mounted on a rear side of a tractor and an opposite rear end (18) con
