Case G188D OEM Crankshaft Remachined 10/10 Rods & Mains 4 Cyl Diesel A37211, A151015, A39146, A39151, G11740, G11741, G11189 This crankshaft has no splines in the pilot hole. * Flange: Flat, 4 Bolt Holes, Open Pilot Hole (Uses Bushing) * Snout: Threaded, 2 Keyways * Stroke: 4.130" * Rod Journal: 2.0605-2.0615" * Main Journal: 2.8730-2.8740" * 5 Mains * With Helical Gear