This listing is for a NEW OEM Arctic Cat snowmobile exhaust valve shaft pulley. The part number on this part is 3006-335.
Looked the part number up online and found that this will fit the following machines, may fit others too
2002 ZR 440 SNO PRO (INTERNATIONAL) [S2002ZRBPROSG-2002-117]
2002 ZR 440 SNO PRO [S2002ZRBPRUSG-2002-117]