© Feb. 2023
78 TB20J Plus Maintenance Manual
POWER SYSTEM
7.4 CUMMINS QSF2.8
1. Coolant outlet connection
2. Air crossover tube
3. Thermostat housing pipeline
4. Engine control module (ECM)
5. Pump drive device
6. Front gear housing cover
7. Crankshaft pulley
8. Oil pan
9. Crankshaft position sensor
10.Fan hub bracket
11. Fan belt
12.Belt tensioner
13.Charger mounting bracket
14.Idler pulley
15.Charger
16.Coolant temperature sensor
1. High-pressure fuel supply to oil injector
2. Fuel rail pressure sensor
3. Fuel rail pressure-reducing valve
4. Fuel rail return pipe
5. High-pressure fuel supply to fuel rail
6. Camshaft position sensor
7. Connecting fuel return pipe
8. Fuel pump actuator
9. Fuel pump return pipe
10.High-pressure fuel pump
11. Engine oil gauge (dipstick)
12.Flywheel housing
13.Drain plug
14.Oil pan
15.Oil filter
16.Crankshaft position sensor
17.Crankcase breather pipe
18.Water inlet connection
19.Intake air temperature/pressure sensor
20.Intake connection
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