Caterpillar original 280-0574 4CR-5532 4CR5532 fuel injector 10R-7672 10R7672 for 320D excavator 3204 engine replacement part original new injector

The Caterpillar C15 Fuel Injector 280-0574 is an OEM-quality electronic unit injector engineered for demanding diesel engine applications. Built with precision fuel metering and high-pressure injection capability, this injector delivers consistent atomization and accurate fuel delivery across the full operating range of CAT C15 and C15 ACERT engines. The hardened alloy steel construction ensures industrial-grade durability, while advanced corrosion resistance extends operational lifespan in harsh environments such as mining, marine, and oil & gas operations.

This replacement injector is fully compatible with a wide range of Caterpillar equipment, including heavy-duty trucks, excavators, wheel loaders, generator sets, and industrial power units. It serves as a direct cross reference for 10R1273, 2530616, 3282574, 3879433, and 20R2053, making it a versatile solution for fleet maintenance and engine rebuild programs. The EUI technology enhances fuel economy and reduces emissions, meeting the performance expectations of modern on-highway and off-highway applications.

Proper installation and maintenance are essential for optimal injector performance. Operators should use clean diesel fuel, replace fuel filters regularly, drain water separators, and monitor fuel pressure to prevent contamination-related failures. Before installation, the injector bore must be cleaned thoroughly, sealing washers replaced, and O-rings lubricated. Calibrated torque tools should be used during assembly, followed by ECM calibration verification, fuel leak inspection, and an injector balance test to ensure reliable operation throughout the service interval.