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100-002 Engine Diagrams

Engine Views

The following illustrations provide the locations of the major external enginecomponents, filters, and other service and maintenance points. Some external

components will be different locations for different engine models.

The illustrations are only a reference to show a typical engine.

Front Engine View (Cummins® Common Rail Fuel System)

1. Engine lifting bracket2. Crankcase breather 3. Air intake connection4. Engine oil fill5. Front gear cover 

6. Fan pulley7. Vibration Damper 8. Starter 9. Engine oil pan drain plug

10. Automatic belt tensioner 

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11. Coolant inlet connection12. Water pump13. Turbocharger (variable geometry turbocharger shown).

Front Engine View (Common Rail Fuel System)

1. Engine lifting bracket2. Crankcase breather 3. Air intake connection

4. Engine oil fill5. Front gear cover 6. Fan pulley7. Vibration Damper 8. Starter 9. Engine oil pan drain plug

10. Automatic belt tensioner 11. Coolant inlet connection12. Water pump13. Turbocharger (variable geometry turbocharger shown).

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Exhaust Side Engine View (Common Rail Fuel System)

1. Exhaust manifold2. Turbocharger (variable geometry turbocharger shown)3. Variable geometry turbocharger actuator (variable geometry turbocharger only)4. Crankcase breather 5. Rocker lever cover 6. Engine oil fill7. Rocker lever housing

8. Coolant outlet connection9. Coolant heater port10. Coolant temperature sensor 11. Coolant inlet connection12. Lubricating oil cooler 13. Lubricating oil filter 14. Dipstick location15. Flywheel housing.

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Intake Side Engine View (Cummins® Common Rail Fuel System)

1. Air intake connection2. Crankcase breather 3. Intake air heater 4. Intake manifold pressure and temperature sensor 5. Turbocharger control valve6. Fuel rail7. Fuel drain manifold

8. Fuel filter 9. Crankcase breather draft tube10. Crankcase breather oil drain tube11. Crankshaft speed sensor 12. Starter 13. Lubricating oil pressure sensor 14. Engine oil drain plug15. Fuel lift pump (behind ECM)16. Electronic control module (ECM)17. Air compressor 18. Camshaft speed sensor 19. Engine data plate20. High-pressure fuel pump21. Ambient air pressure sensor 22. Fuel rail pressure sensor.

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Rear Engine View (Common Rail Fuel System)

1. Engine lifting bracket2. Crankcase breather 3. Turbocharger speed sensor 4. Turbocharger (variable geometry turbocharger shown)5. Injector drain line connection6. Flywheel housing7. Flywheel

8. Engine oil drain plug9. OEM fuel supply line connection10. OEM fuel drain line connection11. Air intake connection.

Top Engine View (Common Rail Fuel System)

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1. Coolant inlet connection2. Turbocharger air inlet3. Turbocharger air outlet4. Turbocharger exhaust outlet5. Turbocharger actuator air line (variable geometry turbocharger only)6. Crankcase breather 7. Flywheel housing8. Crankcase breather oil drain tube

9. Crankcase breather draft tube10. Turbocharger control valve (variable geometry turbocharger only)11. Fuel filter bracket12. Air inlet connection13. High-pressure pump14. Rocker lever cover 15. Engine oil fill16. Coolant outlet connection17. Coolant inlet connection.

Front View (CAPS Fuel System)

1. Fan pulley2. Top dead center (TDC) mark3. Front gear cover 4. Vibration damper 5. Engine oil pan drain plug6. Automatic belt tensioner 7. Water inlet8. Water pump9. Alternator 

10. Water outlet11. Turbocharger air outlet12. Turbocharger air inlet13. Engine oil fill.

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Exhaust Side View (CAPS Fuel System)

1. 1/2-inch (NPTF) coolant taps2. Turbocharger wastegate actuator 3. Engine oil fill4. Coolant outlet5. Front engine lifting bracket6. Coolant temperature sensor 7. Coolant heater port

8. Coolant inlet9. Lubricating oil cooler 10. Engine oil pan drain plug11. Lubricating oil filter 12. Dipstick location13. Coolant filter 14. Injector drain fuel outlet connection.

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Fuel Pump Side View (CAPS Fuel System)

1. Engine air inlet2. Intake manifold pressure sensor 3. Intake manifold temperature sensor 4. M10 (STOR) fuel pressure after-lift pump

5. M10 (STOR) fuel pressure before-lift pump6. Magnetic pickup location 3/4-16 UNF7. Fuel return connection8. Fuel inlet connection9. Fuel lift pump

10. Starter mounting flange11. Oil pressure sensor 12. Fuel filter/water separator 13. Electronic control module (ECM)14. Dipstick location15. M10 (STOR) oil pressure port

16. Engine position sensor (EPS) - (inboard)17. Engine speed sensor (ESS) - (outboard)18. Engine dataplate19. High-pressure fuel lines20. Cummins® Accumulator Pump System (CAPS) injection pump21. Intake air heater.

Rear View (CAPS Fuel System)

1. Rear engine lifting bracket2. Turbocharger exhaust outlet

3. Clutch mounting holes4. Flywheel housing5. Flywheel.

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Last Modified: 02-Jun-2015

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