江铃4JB1皮卡宝典五十铃喷油嘴 0445110629 总成替换

JMC 4JB1 pickup engine fuel injector assembly (OEM 0445110629) installed in the cylinder head injector hole; atomizes high-pressure fuel to the combustion chamber, directly dictating combustion efficiency and power. OEM number 0445110629 designed for JMC Boduo and other 4JB1-engined vehicles. Replacement difficulty medium; professional technician recommended; labor about 1.5-2 hours. If idle jitter, acceleration weak, black smoke, or rising fuel consumption occur, replace promptly to prevent injector pump damage.