BLADE SHAFT PULLEY RIDING-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 OUTER DIAMETER 115 mm INNER DIAMETER 25 mm HEIGHT 25.3 mm CODE: 842521451 ORIGINAL CODE: 521451 , 51482930 SR