The 0445020530 is a genuine Bosch CP4 series high-pressure common rail fuel pump, carrying JAC OEM factory part number 1042300FE010 (interchangeable with Bosch code 0445020531). This pump assembly is engineered specifically for JAC 4DA1 (2.8L) 4-cylinder Euro 4 and Euro 5 common rail turbocharged diesel engines, including power ratings HFC4DA1-2C (120HP) and HFC4DA1-2D (130HP).
Vehicle and equipment applications include JAC Shuai ling (K-series / H-series), JAC Jun ling (V6 / N-series), JAC Kang ling light commercial trucks, JAC Sunray passenger vans/minibuses, and JAC pickup truck platforms.
This 0445020531/530/532 pump features a heavy-duty single-plunger CP4 architecture driven directly by the timing gear train, incorporating an internal mechanical feed pump and an ECM-controlled fuel metering valve. Installing this genuine 0445020530 (JAC 1042300FE010) unit restores original 1800 bar injection pressure, eliminates extended cranking during hot starts, and stops heavy-load power derate on 4DA1/HFC4DA1 platforms.
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