Crankshaft - 3637401M91 Models 1004, 1007, 168, 174, 175, 178, 184, 185, 188, 240, 265, 273, 274, 275, 283, 284, 290, 293, 294, 3050, 3060, 3065, 3070, 3075, 362, 365, 372, 374, 375, 382, 383, 384, 387, 390, 390T, 393, 396, 397, 398, 4225, 4235, 50B, 50E, 50H, 565, 575, 590, 6530, 675, 690, 698, 698T, A4.236, A4.248, Advantage 65, Advantage 75, Advantage 85, Advantage 95, Blizzard 65, Blizzard 75, Blizzard 85, Blizzard 95, C7830, CF6830, Trekker 70, Trekker 75, Trekker 85, Rex 95, Rex 85, Rex 75, Rex 65, 435, 440, 425, 460