KELCH 7J203715 John Deere Gas Cap With Gauge This Kelch Gas Cap Fits The John Deere 316 318 322 and 420. Be sure to measure your tank, as it doesn't fit all the 316, 318 models. This Gas Cap Replaces John Deere Oem Part Number: AM143248 AM143248 Replaces The Old John Deere Part Number AM39206. Some models of the 316, 318 use the shorter 7" long version. Please let us know if you have the shallower tank. Made in the U.S.A. Gas cap may end up 180 degrees off, as some John Deere gas tanks have a different cut filler neck