V-belt ride-on mower lawn mower HUSQVARNA AYP PARTNER RALLY For models : R15T, Rider 13, Rider 15, Rider 16, Rider 18, Rider 155, Rider 175, Rider 850, FRM13A Dimensions: XPA 828, 12.7 x 828 Code: 55170076 Original code: 506954901 HUSQVARNA AYP PARTNER RALLY