GEAR (138 & 88 T.) 7M1315 - Caterpillar

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The C13 engines for Combat & Tactical Vehicles are EPA Exempt. The C13 engines are not equipped with emissions devices such as the NOx Reduction System (NRS or EGR), Coolant Diverter Valve, IVA or VVA system or related components.
C15 Engines
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Left side of C15 engine
(1) Secondary engine speed/timing sensor
(2) Intake manifold pressure sensor (Boost)
(3) Front valve cover connector
(4) Intake manifold air temperature sensor
(5) Rear valve cover connector
(6) Primary engine speed/timing sensor
(7) Timing calibration port
(8) Fuel temperature sensor
(9) Atmospheric pressure sensor
(10) Engine oil pressure sensor
(11) Engine Control Module (ECM)
(12) J2/P2 ECM connector
(13) J1 ECM connector
Illustration 3 g01103784
Right side of C15 engine
(14) Sensor for the intake valve actuation pressure
(15) Solenoid for the intake valve actuation pressure
(16) Coolant temperature sensor
(17) Diverter valve for the engine coolant C13 Engines
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Left side of C13 engine
(1) Atmospheric pressure sensor
(2) Inlet manifold pressure sensor
(3) Valve cover connector to fuel injectors
(4) Inlet air temperature sensor
(5) Connector to fuel temperature sensor
(6) Engine oil pressure sensor
(7) Primary speed/timing sensor
(8) Secondary speed/timing sensor
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Front view of the C13 engine
(9) Coolant temperature sensor
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Remote fuel filter base from the rear of the C13 engine
(10) Fuel temperature sensor