Common Rail Fuel Injector Nozzle 0 433 171 887  DLLA157P1425  for Injector 0 445120049 Mitsubishi

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How does a fuel injector valve work?
Injection valves comprise a valve body, which houses a magnet winding and a guide for the nozzle needle, and a nozzle needle with magnet armature. When the control unit applies voltage to the magnet winding, the nozzle needle rises up from its valve seat and releases a precision bore hole.

We also have some Diesel Nozzle other items for your reference :

Common Rail Fuel Injector Nozzle 0 433 171 914
Common Rail Fuel Injector Nozzle 0 433 171 924
Common Rail Fuel Injector Nozzle 0 433 171 931
Common Rail Fuel Injector Nozzle 0 433 171 933