This DELPHI Diesel Fuel Injector (Part Number: 28232251 / 166001137R) is designed for vehicles equipped with K9K EURO 4 engines and first-installed components. Manufactured by DELPHI, it ensures precise fuel delivery, stable engine performance, and optimized combustion efficiency. Built to meet OEM standards, this injector is an ideal replacement choice for maintaining reliable operation and fuel economy in diesel engines.