• 1004 ENGINE AND POWER UNIT
• 1008 POWER UNIT SUPPORTS
• 1012 ENGINE BLOCK
• 1016 CYLINDER HEAD
• 1020 CRANKCASE SUMP AND COVERS
• 1024 CRANKSHAFT AND FLYWHEEL
• 1028 PISTONS AND CONNECTING RODS
• 1032 TIMING SYSTEM
• 1036 TIMING SYSTEM
• 1040 FUEL TANK AND PIPES
• 1044 SUPPLY CIRCUIT PUMP(S) AND DEVICES
• 1048 ENGINE AIR SUPPLY CIRCUIT
• 1056 PETROL INJECTION
• 1060 DIESEL INJECTION
• 1064 ENGINE SUPERCHARGING SYSTEM
• 1072 INTAKE AND EXHAUST MANIFOLDS
• 1076 EXHAUST PIPES AND SILENCERS
• 1080 EMISSION CONTROL SYSTEM
• 1084 ENGINE LUBRICATION
• 1088 ENGINE COOLING
• 1092 MISCELLANEOUS ENGINE DRIVE COMPONENTS