别克雪佛兰4孔喷油嘴 25313185/25334150/12571863 供油精准稳定

Buick Chevrolet 4-hole fuel injector nozzles 25313185 / 25334150 / 12571863 installed on intake manifold to ensure precise atomization and combustion efficiency. OEM numbers include 25313185, 25334150, 12571863; suitable for Buick GM series and some Chevrolet models such as LaCrosse, Verano. Installation medium; about 1.5-2 hours; clean sealing rings and fuel rail interface. If idle fluctuations, weak acceleration, increased fuel consumption, or check engine light occur, injector clogging or poor atomization is usually the cause; timely replacement restores fuel supply precision.