Interchange Part Number: 71-5007/4 STD, 181087001800, H1348/5 STD,, MB5855XA. Material: ALLOY STEEL CRANKSHAFT. CRANKSHAFT ALLOY STEEL CAST IRON,BIG END BEARING,MIAN BEARING. LAND ROVER DISCOVERY 306DT 3.0L SDV6 CRANKSHAFT WITH ENGINE REBUILD KIT CK003601.