Perkins 144, 152, 3-144, 3-152 OEM Crankshaft New 3 Cyl Diesel 31312437, 84399 Also see part # 7404, 7418, 7424. Old New Stock - Sat in Barn for 10 years - May need Cleaning and/or Polishing * Flange: rope type rear seal * Snout: has splined neck * Stroke: 5.00" * Rod Journal: 2.249" * Main Journal: 2.749" * 3 Mains * No Gear