Radiator Hose, Upper. PART NO: A-70267816. New upper radiator hose with an inside diameter of 2.25" on the smaller side and 2.375" on the larger side. This radiator hose fits multiple Allis-Chalmers Tractor models. (NOTE: Replaces 70267816V) Dim A (1)A - 2.250" Dim B (2)B - 2.375". . MODELS: Allis-Chalmers TRACTOR: 7030 Allis-Chalmers TRACTOR: 7040 Allis-Chalmers TRACTOR: 7045 Allis-Chalmers TRACTOR: 7050 Allis-Chalmers TRACTOR: 7060 Allis-Chalmers TRACTOR: 7080 Allis-Chalmers TRACTOR: 7580.