3 products Ringfeder® tow coupling 6451 Tow coupling for connecting to drawbar eyes according to DIN 74054 / VG 74059. Hole pattern 160x100. The Ringfeder 6451 tow coupling is available in two robust versions, designed to meet demanding tow... Ringfeder® tow coupling 6441 Tow coupling for connecting to drawbar eyes according to DIN 74054 / VG 74059. Hole pattern 140x80 Ringfeder® tow coupling 6434 Tow coupling for connecting to drawbar eyes according to DIN 74054 / VG 74059. Hole pattern 120x55