REPLACES OEM:Exmark: 1-634972,FITS MODELS:Exmark: Lazer Z, Serial No. 150,000-259,999SPECS:Height: 7 1/8"
REPLACES OEM:Exmark: 1-644092FITS MODELS:Exmark: Lazer Z with 52", 60" and 72" deck, Serial No. 190,000-269,999SPECS:OD: 5 1/2"Height: 6 3/4"OD of Pulley: 8"