Blower Motor (4 wire) (12volt, Rev rotation, 3sp) . PART NO: A-70275685. Vented, Med & Hvy Duty Rating Volts12 Shaft Dia.3/8" Shaft Lgth.4 1/4" x 4 1/4" Body Lgth.4 1/8" Total Body Lgth.5" Body Dia.3 1/2" Stud Ctr. Dist.2 7/8" RotationRev 3 Sp. . MODELS: Allis-Chalmers TRACTOR: 6060 (S/N 10306 > ) Allis-Chalmers TRACTOR: 6070 (S/N 10306 > ) Allis-Chalmers TRACTOR: 6080 (Cab S/N 10306 > ).