Pulley only used on ENCORE 32", 36", 48" and 61" cut decks. Also used on FERRIS 32", 36", 48" and 61" cut decks. JACOBSEN 32", 36", 48" and 61" cut decks using Jacobsen part number 182237 and replacement for SCAG 32", 36", 48" and 61" cut decks Scag part numbers 48127, 482744 and 48924.