John Deere 4045, 4.5L, PowerTech OEM Crankshaft Remachined 10/10 Rods/Mains 4 Cyl Diesel RE504638, RE50618, R113596 Single step straight nose style. PowerTech | Flange: 4 Bolt Holes, 1 Dowel Hole | Snout: Single Step, 4 Bolt Holes | Stroke: 5.000 in | Rod Journal: 3.0630-3.0640 in | Main Journal: 3.1230-3.1240 in | 5 Mains | With Helical Gear