Tractor
From Junkyard Truck Wiki - Official
Note: This is part of the version 2.0 update which you may or may not have yet. This wiki often contains information on updates before they arrive.
The tractor can be bought from Ruby after buying up her supply of barley. The tractor can be re-fueled at the gas station, or with a fuel can. The tractor is a slow vehicle which should remain on the farm plot. The harvester header can be activated with rightmost lever. This vehicle is used to harvest barley for the brewery.