Caterpillar original  387-9441 Diesel Common Rail Injector for C7 C9 Engine, Replacement for OEM Fuel Injector Assembly original new injector

Engineered for professional diesel powertrain service, the 387-9441 Fuel Injector is a direct fitment solution for C7 Series diesel engines, including C7 marine and C9 marine engine applications. Manufactured with OE-style dimensional accuracy, this Injector GP delivers precision fuel metering, fine spray atomization, and heavy-duty construction suitable for continuous-duty industrial operation. It is available in original, OEM, and reman replacement channels, giving fleet operators and distributors flexible sourcing options.

Broad cross-reference coverage—including 20R-8067, 10R-7226, 328-2587, 295-9166, 280-4174, 10R4761, 10R7223, 328-2576, 10R4762, and 10R4763—makes this injector a versatile stock item for construction machinery, medium-duty trucks, marine propulsion units, diesel generator sets, mining support equipment, and agricultural or forestry diesel platforms. It directly addresses common diesel faults such as hard starting, rough idle, misfire, black or white smoke, power loss, and high fuel consumption caused by poor atomization, injector imbalance, or internal leakage.

Installation should be performed by a qualified diesel technician after confirming engine serial number, arrangement number, and original injector code. Recommended service includes clean fuel supply, filter and water separator maintenance, injector balance testing, spray and leakage inspection, and diagnostic scanning. Export-ready packaging and quality inspection capability support global distribution across North America, Europe, the Middle East, Africa, South America, Southeast Asia, and Oceania.