3126B Generator Set Engine Caterpillar

Sensors and Electrical Connectors

Usage:

3126B BDZ

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Illustration 1	g01184378
Electronic system

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Illustration 2	g01184377
Sensor locations (1) Primary engine speed/timing sensor (2) Injection actuation pressure control valve (3) Injection actuation pressure sensor (4) J300/P300 Injector harness connector (5) Air inlet heater relay (6) Coolant temperature sensor (7) Engine oil temperature sensor (8) Inlet manifold air temperature sensor (9) Atmospheric pressure sensor (10) Turbocharger outlet pressure sensor (11) Timing calibration probe connector (12) Service tool connector (13) J37/P37 Connector (14) Secondary engine speed/timing sensor (15) Fuel pressure sensor (16) Engine oil pressure sensor (17) J2/P2 ECM connectors (18) ECM (19) J1/P1 ECM connectors

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Illustration 3	g01184379
ECM and harness connectors

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Illustration 4	g01184547
J37/P37 Connector (40 pin)

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Illustration 5	g01184539
J300/P300 Injector harness

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Illustration 6	g01158896
Service tool connector

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Illustration 7	g01159881
3 wire sensor connector

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Illustration 8	g01163206
2 wire sensor connector

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