Transmission drive pulley tuff torq for lawn tractor lawn mower twin cut on TUFF TORQ transmission Features : A: Outside diameter 101mm B: Inside throat diameter 74mm C: Throat height 12mm D: Hole diameter 15mm E: Hole type "Millerighe" Throat type "V" Code: 455003 Original part number reference: 1A646025770 STIGA CASTELGARDEN ALPINA MOUNTFIELD HONDA GGP