The John Deere 54 in. Replacement Mower Blade has a sharp cutting edge that helps provide a long-lasting, quality cut. This replacement blade is made of alloy steel and the ideal high-carbon content for durability. This blade can be used with John Deere mower model # Z425 and 525E.. For questions about service and repair, please call the John Deere Customer Contact Center at 800-537-8233 or reference the Service & Repair document. Replacement lawn mower blade. Designed to be used with John Deere lawn mower model # Z375R, Z425, Z515E, Z525E and Z530R. Made of alloy steel and ideal carbon content. Sharp cutting edge for long lasting quality cut. Known for its ability to provide a better lift of grass and consistent cut. Contains one set of 3 replacement blades. <a href="https://www.homedepot.com/b/John-Deere/N-5yc1vZt7" target="_blank" style="color:#F96302">Click here to shop all John Deere products</a>. Blade Length (in.): 18.75 in. Used with Equipment Type: Zero Turn Mower