TIMING BELT FOR RIDE-ON MOWER lawn mower HUSQVARNA BLADE DECK Compatible for PROFLEX 21 - RIDER PRO 18 models Dimensions: 12.7 x 1118 mm 1/2" x 44.02" Part Number: 8-278 Reference original code: 535488601 HUSQVARNA - AYP - PARTNER - JONSERED