John Deere R51603 O-Ring is a John Deere equipment manufacturer (OEM) part designed with precision to meet your machinery’s needs. It features an inner diameter of 15.54 mm (0.61 in) and a nominal section of 2.62 mm (0.1 in), ensuring a fit and reliable performance. This O-ring is crafted to provide a durable seal, helping to maintain the efficiency and longevity of your equipment. For assistance in finding the right John Deere part or accessory, John Deere specialists are available Monday through Friday from 8:00 AM to 5:00 PM (EST) by calling 800-345-2396 or via email. Hartville Hardware strives to provide accurate part recommendations sourced from reliable systems, but as parts and compatibility may change without notice, contacting customer support is advised if you are unsure about your needs. Model Number: R51603