517345 Bunton, Bobcat, Ryan Sprocket Machined

517345 Sprocket Machined.  The sprocket has IEI 40BS12H 3/4 China stamped on it. No original manufacturer’s packaging is available.  Fits Bunton, Bobcat, Ryan 544850 1978-1985 – Lawnaire;   544863 1986-1994 – Lawnaire IV  544863B Lawnaire IV, Briggs;   544881 1986-1994 – Lawnaire;   544881A Lawnaire IV, Honda  544883A Lawnaire V, Honda  544886 Lawnaire V, Briggs &;