John Deere UC21583 Mower Blades, Set of 2 are designed as a reliable for the GX22151 model. These mower blades are expertly crafted using a blend of carbon and boron, which ensures a durable hardness for an extended lifespan and maintains a sharp edge without the risk of breakage. This set includes two blades, each manufactured as John Deere Equipment Manufacturer (OEM) parts, ing quality and compatibility with your lawn mower. For assistance in finding the right John Deere parts or accessories, specialists are available Monday through Friday, 8:00 AM to 5:00 PM (EST), via phone or email. Hartville Hardware is committed to providing accurate part recommendations sourced from systems, though compatibility can change without notice, so contacting customer support is advised if there is any uncertainty. Model Number: UC21583