长安悦翔/金牛星喷油嘴20280156417，12孔精密燃油喷射器提升燃烧效率

This replacement features 12-hole precision injection design; compared to the original 4-hole injector, it provides finer atomization and more accurate spray angles; material is high-wear-resistant stainless steel valve core with corrosion-resistant seals, long-term use less likely to clog or leak. OEM number 20280156417; fits Chang’an Yuexiang and Jinouxing (automatic models). Function improves fuel atomization to enhance combustion efficiency, improves idle stability, reduces carbon buildup. Replacement difficulty medium; remove intake path and replace seals; recommended for experienced technicians.