Hello, Dave - We're sorry to see that this blade did not fit your lawnmower! This blade will fit models RY40112A, RY40100A, RY40140, RY40104A, P1111, P1100A, P1120, and P1102A. Would you mind sending us an email at Reviews@RYOBItools.com? We would be happy to look into an option that fits your unit!