Sprocket with fixed sprocket for chainsaw A : 13 mm B : 17,8 mm C : 67,7 mm D : 16,7 mm Pitch: 325 Teeth: 7 Compatible with chainsaw models: 405 - 406 - 407 - 410 - 415 - 416 - 440 - 450 - 451 - 480 - 485 - 500 - 400 - 488 - YB501 SHINDAIWA Part No. 360047