[Replacement Part Number] This pulley-equipped lawn mower blade adapter is designed as a replacement for part numbers 687-02528, 710-1044, and 736-0524B. [Compatibility] This 25mm drive pulley adapter fits Troy-Bilt models TB230, TB240, TB260, TB280ES, MTD models 12AGA25S011, 12AGA2M6766, 12AGA2MT766, Cub Cadet models 12ABA2M5710, 12ABA2M5756, 12ABB22J709. For additional compatibility details, please refer to the full description. [High Quality] Constructed from durable bronze material, this adapter offers enhanced reliability and long-lasting performance. It has been subjected to multiple factory quality tests to ensure it meets industry standards. [Easy to Install] Includes a hex bolt and blade gasket for straightforward installation. To install, clean the shaft, remove the old blade and pulley, then secure the new pulley in place. [Package Includes] 1 x lawn mower blade adapter with drive pulley, 1 x blade gasket, 1 x bolt. Specifications: Pulley diameter: 2.8 inches; Inner diameter: 0.98 inches; Height: 2.85 inches. Color: As shown. Material: Steel. Package contents: 1 x lawn mower blade adapter, 1 x blade gasket, 1 x bolt. Additional items not included. Note: Lighting and display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.