C Series Engine Diagrams Section E - Engine and System Identification Page E-9 Industrial Applications Front View - C8.3 - Industrial 1 Engine air inlet 2 Fan pulley 3 Fuel pump drive cover 4 Front gear cover 5 Drive belt 6 Lubricating oil pan drain plug 7 Vibration damper 8 Fan belt tensioner 9 Water pump 10 Alternator 11 Turbocharger air outlet 12 Turbocharger air inlet 13 Engine oil fill.