John Deere 6.404 Late, 6.466, 6076 Early OEM Crankshaft Remachined 10/10 Rods & Mains 6 Cyl Diesel AR96189, R26560, R56919, R56934, RE63451, RE53422 6.404 ESN 215000 & up and 6076 ESN up to 187657, Timing Gear installed, L-Hand Helix, 23 Teeth, 23 mm wide, part #R105488 * Flange: Centering Ring, 6 Bolt Holes, 1 Dowel Hole * Snout: 2 Keyways, 1 Bolt Hole * Stroke: 4.750" * Rod Journal: 2.9980-2.9990" * Main Journal: 3.3715-3.3725" * 7 Mains * With 2 Helical Gears