• 01 Complete engine, crankcase ventilation, cylinder head, crankcase125
• 03 Crank assembly125
• 05 Engine timing124
• 07 Mixture formation120
• 09 Air intake, turbocharging28
• 13 Air compressor, belt drives43
• 14 Exhaust manifold, engine brake, emission control system11
• 15 Electrical system - engine75
• 18 Engine lubrication, engine oil cooling69
• 20 Engine cooling system75
• 22 Major assembly suspension24
• 30 Throttle control, speed control systems38
• 47 Fuel system, powertrain energy supply35
• 49 Exhaust system, exhaust gas cleaning16