Power Distribution: It carries electrical power from the main batteries and the alternator to all major components located on the chassis, including:
Engine Control Module (ECM): Provides power and serves as the communication backbone for the engine.
Main Hydraulic Pump Solenoids: Delivers control signals for the hydraulic system, regulating power and flow.
Cab Power Supply: Provides electricity to the operator's cab for displays, switches, and controls.
Central Lubrication System (if equipped): Powers the controller and motors for the auto-grease system.
Cooling Fan Solenoids: Controls the hydraulic cooling fan for the radiator and aftercooler.
This 388-6859 chassis harness is used for 374D excavator.
Related part number:
9X-3402
3T-4696
2L-8075
9X-3401
155-2270
155-2260
230-4009
264-7034
230-4011
264-7029
230-4013
264-7030
230-5008
264-7031
231-2295
264-7033
243-4505
243-4507
243-4510
342-2847
126-1768
8N-1544
8T-8737
9W-0852
119-3662
9X-3402
127-5486
2L-8049
2L-8057
9X-3401
