AL-KO overrun coupling 251 G, 1550-3000 kg top mounting, nose weight 120 kg, with AK 301
AL-KO 251 G overrun coupling for top mounting, complete with AK 301 coupling head. The flange version is bolted on top of the drawbar and, when the trailer runs up, passes the movement of the drawbar on to the wheel brakes via the brake rod.
Top and underslung mounting are not interchangeable, as the height of the coupling head changes. Before replacement, check the mounting position and hole pattern of the existing coupling. The AK 301 has a safety and wear indicator.
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