John Deere AR72337 Air Stack Cap is a John Deere equipment manufacturer (OEM) part designed to ensure the quality and reliability you expect from John Deere products. If you need assistance 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. You can also reach out to a specialist via email for personalized support. Hartville Hardware strives to provide accurate parts recommendations sourced from reliable systems, but please note that parts and compatibility may change without notice from the manufacturer. If you are uncertain about the part you need, contacting the Customer Support Team is .