Caterpillar original 30R-0004 Common Rail Injector 618-0751 for CAT C15 C27 C32 C18, Replacement for OEM 20R-2285, fits Tractor D10N D10T D10T2, Loader Cross Reference 374-0751 original new injector

Designed for Caterpillar’s heavy-duty diesel engine platforms operating in high-stress environments, the 30R-0004 electronic fuel injector is a precision-engineered replacement assembly built to deliver consistent, reliable performance. It is fully compatible with CAT C15, C15 ACERT, C16, and 3406E engine series, including industrial and marine-specific C15 variants. The injector fits a broad range of equipment used across core industrial sectors, such as heavy-haul transportation trucks, construction machinery, mining haul trucks, stationary generator sets, marine propulsion systems, and oilfield power equipment.

Integrated into Caterpillar’s high-pressure electronic fuel injection system, the 30R-0004 operates via ECM signal to activate its solenoid actuator, pressurize fuel, and atomize it through a precision nozzle before delivery to the combustion chamber. This controlled process enables precise fuel metering, optimized combustion, improved fuel efficiency, reduced emissions, stable idle, enhanced power output, and reliable cold-start performance. Its industrial-grade construction withstands extreme vibration, temperature fluctuations, and sustained high loads common in mining, construction, and marine operations for extended service life.

Manufactured to meet OEM-equivalent industrial grade specifications, each 30R-0004 injector comes with a 12-month warranty and is shipped in export-standard industrial packaging to prevent transit damage, with global aftermarket support available for B2B buyers. Note that cross-reference compatibility varies by engine serial number and arrangement code, so always verify your engine’s unique configuration before placing an order to avoid fitment issues.