Upper Radiator Hose fits International 806 856 380380R1

New upper radiator hose built to the original International spec for the large-bore D-series diesel tractors of the late 1960s and early 1970s. These were high-output machines for their era, and the cooling system was sized accordingly — a 2" inside diameter is standard for this application. Hoses on these tractors tend to go from the outside in: the outer rubber looks passable while the interior liner is collapsing or delaminating. If coolant flow has been sluggish or the engine has been running hotter than normal, the hose is usually the first thing worth pulling and inspecting. Molded shape means it goes on where the original did — no wrestling onto the fittings.