Experience optimal engine performance with the ACDelco GM Original Equipment 55506244 High Pressure Diesel Fuel Injector Assembly. This precision-engineered component atomizes fuel into the engine's intake manifold or cylinders, ensuring quick throttle response and smooth cold starts. Manufactured to strict GM OE specifications, this fuel injector offers the reliability and durability you expect from a genuine GM part. Measuring 3.25 inches in width, length, and height, it features a machined exterior finish and a robust metal construction. With an NPT outlet connection type and a 3/8 inch outlet connection size, it's designed for seamless integration into your vehicle's fuel system.