IDLER PULLEY RIDE-ON MOWER LAWN MOWER ORIGINAL AL-KO LAWN MOWER TECHNICAL SPECIFICATIONS MODELS T 13-102 SP-H , T 14-102 HDE Edition , T 15-102 HD , T 15-102 HDS , T 15-102 HDE-K , T 16-102 HD , T 18-102 HD , T 20-102 HD CODE: 842464456 ORIGINAL CODE: 464456 , 521391 SR T 13-102 SP-H, T 14-102 HDE Edition, T 15-102 HD, T 15-102 HDS, T 15-102 HDE-K, T 16-102 HD, T 18-102 HD, T 20-102 HD