Deck Roller / Simplicity 2108432Pack Size:1Gravely 039563, Simplicity 108432, Simplicity 2108432SM, Simplicity 108432SM, Simplicity 2108432NHC 226-0197, Ratio Parts 31-110, Sunbelt B1WL53Gravely 1200 Series, 38734, 831015, 831023, 831033, 915016, 915025, 915034, 915036, 915038, 915040, 915042, 915044, 915046, 915048, 915050, 915074, 915076, 915078, 915080, 915082, 987102, 987103 and 987107; Simplicity 500, 600, CTH-L, before 1980, Landlord, Broadmoor, 7000 series, 7010, 7014, 7016, 70135 and 7018, 42" and 48" decksBore: 5/8 ", Tread: Smooth, Wheel Size: 2 1/2, Hub: 6 3/4 "