Hydraulic ValveChina Solenoid Injector Heui 312-5620 Compatible with Caterpillar 320d Fuel Pump 326-4635 C6.4, Find details about China Solenoid Injector Heui, Solenoid on Injector Pump from Solenoid Injector Heui 312-5620 Compatible with Caterpillar 320d Fuel Pump 326-4635 C6.4