AL-KO overrun coupling 251G, bottom mounting, 1550-3000 kg, hole pattern front/rear/side 120/200/166 mm, for wheel brake 1637/2051
AL-KO 251G overrun coupling for underslung mounting on braked trailers, with brake rod for the AL-KO 1637 and 2051 wheel brakes. The flange version is bolted underneath the drawbar; its hole pattern corresponds to that of the 161S in the underslung version.
No jockey wheel bracket is fitted. Before replacement, check the mounting position, hole pattern and fitted wheel brakes, and after fitting readjust the brake system starting from the wheel brakes.
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