Spindle Pulley / MTD 756-0980Pack Size:1MTD 756-0980NHC 276-9780, Oregon 44-369, Ratio Parts 22-852, Rotary 9587, Sunbelt MT158, Sunbelt B1MT158MTD 600 series; 1999 and newer; for 42" deckOD: 5 3/4 ", Splined pulley, 1" width, Made by an OEM supplier