John Deere 4.202, 4.219, 4.239 OEM Crankshaft Remachined 10/10 Rods/Mains 4 Cyl Diesel AT18030, R23517, R81959, R94644, RE48748 36mm (1.42 in) Short snout. 4.239 ESN up to 769619. | Flange: 4 Bolt Holes, 1 Dowel Hole | Snout: Straight, 1 Bolt Hole, 1 Keyway | Stroke: 4.330 in | Rod Journal: 2.7480-2.7490 in | Main Journal: 3.1235-3.1245 in | 5 Mains | With Helical Gear