John Deere Original Equipment Elbow Fitting - AT49331 37 Degree Elbow Fitting Part Specifications:  Tube Outside Diameter (MM) 15.8750 Thread Size (MM) 22.2250 Thread Size (MM) 26.9748 Length (MM) 29.4640 Length (MM) 43.9420 Length (MM) 16.5862 Fits the following John Deere models: Commodity Cart: 1900, 1910. Tractor: 3020, 4030, 4230, 4430, 4630, 6030. Tree Harvester: 743, 743A. This is an O.E.M. John Deere part.