Cummins 3802748 Fuel Injector Assembly

The Cummins 3802748 fuel injector assembly is a precision-engineered component designed for high-pressure common rail and mechanical fuel systems across the Cummins B, ISB, and QSB engine series. It features a 7 mm nozzle tip diameter optimized for efficient fuel atomization and combustion in 3.9L, 5.9L, and 6.7L displacement engines. This injector assembly serves as a direct replacement for Cummins OEM part numbers 3802748 and 3930131. It is widely applied in construction machinery, heavy-duty trucks, marine propulsion, industrial power units, and agricultural equipment. The component is manufactured to meet ISO 9001 quality standards, available in both new and remanufactured conditions, ensuring reliable cold-start performance, emissions compliance, and durability under severe duty cycles. Cross-reference interchange includes part number 3930131.