Spacer for adjusting the height of the coupling head for the drawbar of a passenger trailer with a width of 40 mm. Galvanized steel bracket for increasing the installation height of the locking coupling device by 50 / 100 mm from the standard location of the coupling head. Determine the required height and install the bracket on the trailer drawbar, and then the coupling head using fasteners. Compatible with MZSA trailers 817700.002; 817701, 817702, 817703, 817704, 817705, 817710, 817711, 817712, 817715, 817717, 817718, 817719, 817730, 817731, 817732, 817733, 817735, 817736 Spanish 012, 014, 015, 016, 022, 024, 025, 026, 032, 034, 036; 817772, 817773, 817774, 817783 isp. 001; 881771C.012; 881771C.014; 81771A, 81771B, 81771C, 81771D, 81771E isp.101, and 103; 81771G, 81773G isp. 011, 013, 021, 023