RETAINER 9P7447 - Caterpillar

The information from the sensors enables the electronic control module (ECM) to control the engine as efficiently as possible over a wide range of operating conditions.The sensors also enable the ECM to activate alarms, derates, and shutoffs in response to abnormal operation. The functions of the sensors are described below.
Illustration 1 g01649434
Left side view
(1) ECM junction box
(2) Throttle actuator
(3) Compressor bypass actuator
(4) Fuel metering valve
(5) Exhaust bypass valve
(6) Exhaust temperature module
(7) Engine junction box
Illustration 2 g01668157
(8) Engine coolant pressure sensor (outlet)
(9) Engine oil temperature sensor
Illustration 3 g01649653
Front view
(10) Engine coolant temperature sensor
(11) Intake manifold air temperature sensor
Illustration 4 g01652115
Front view
(12) Unfiltered oil pressure sensor
(13) Filtered oil pressure sensor
Illustration 5 g01652136
Right side view
(14) NOX sensor and NOX sensor buffer
(15) Coolant pressure switch (inlet)
Illustration 6 g01668295
(16) Speed/Timing sensor