C7 and C9 Marine Engines Caterpillar

Typical left side engine view

(1) Coolant temperature sensor

(2) Fuel temperature sensor

(3) Fuel pressure sensor

(4) Injection actuation pressure control valve

(5) Injection actuation pressure sensor

(6) Connector for the coolant level sensor (option)

(7) Intake manifold (boost) pressure sensor

(8) Connector for the exhaust temperature sensor (option)

(9) Inlet manifold temperature sensor

(10) Service tool connector

(11) Injector valve cover entry connector

(12) Connector for the transmission oil temperature sensor (option)

(13) Connector for the transmission oil pressure sensor (option)

(14) Connector for the fuel level sensor (option)

(15) Primary engine speed/timing sensor

(16) Secondary engine speed/timing sensor

(17) Timing calibration port

(18) Engine oil pressure sensor

(19) Timing calibration probe connector

(20) ECM connector J1/P1

(21) J1939 termination resistor

(22) ECM connector J2/P2

Typical left side engine view

(1) Unit injector wiring harness connector

(2) Injection actuation pressure sensor

(3) Intake manifold (boost) pressure sensor

(4) Intake manifold temperature sensor

(5) Engine oil pressure sensor

(6) Timing calibration probe connector

(7) Connector for the air inlet heater relay (option)

(8) Fuel pressure sensor

(9) Injection actuation pressure control valve

(10) Connector for the transmission pressure sensor (option)

(11) Primary engine speed/timing sensor

(12) Customer connector

(13) Secondary engine speed/timing sensor

(14) Service tool connector

(15) ECM connector J2/P2

(16) Connector for the transmission temperature sensor (option)

(17) ECM connector J1/P1

Typical top engine view

(19) Coolant temperature sensor

(20) Coolant level sensor (option)

(21) Connector for the fuel temperature sensor (option)