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Fuel Injector Plunger and Barrel Assembly
Mack

This assembly is a critical component in the fuel injection system, responsible for delivering precise amounts of fuel into the combustion chamber. Its high-precision manufacturing ensures optimal atomization and combustion efficiency, directly impacting engine power and fuel economy. The plunger and barrel work together to maintain consistent injection timing and pressure, which are essential for smooth engine operation. Proper functioning of this assembly reduces emissions and enhances engine longevity. Source One Parts Center offers this vital part to support engine maintenance and rebuild projects, ensuring your heavy-duty truck runs at peak performance with reliable fuel delivery.