The John Deere Original Equipment Air Stack Cap #AR72337 is a genuine replacement part designed specifically for John Deere lawn. This air stack cap, with model number AR72337, comes in a pack of 1 and is essential for maintaining the proper function of the lawn mower's engine. Made by the trusted brand John Deere, this part ensures a secure fit and reliable performance for your lawn mower, making it a necessary addition for any lawn care enthusiast.