Ring Gear - Flywheel
CTPA-60883H Replacement Part to Fit:  Case/IH "For Models: 385, 395, 454, 464, 484, 485, 495, 574, 584, 595, 684, 685, 695, 784" 126 tooth; 15.930" OD; 14.625" ID; .562" wide  Price:  $40.49  Buyers Club Price:  $36.44