Flat Idler Pulley SKU: B1SB2915 Please log in to see price or purchase this item DetailsO.D 4" (101.6mm); I.D 1/2" (12.7mm); Height 1-1/16" (26.99mm)DetailsMurray 23339, Noma 40501Cross ReferencePUL1274Cross Reference280-149, 280-214