Blower Motor. PART NO: A-134494C1. 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: Case-IH TRACTOR: 4366 Case-IH TRACTOR: 4386 Case-IH TRACTOR: 4568 Case-IH TRACTOR: 4586 Case-IH TRACTOR: 4786.