Caterpillar original C4.4 Engine Common Rail Diesel Injector 370-7287, Cross Reference 20R-2480 for Excavator 312E 420F, Replacement for OEM 295050-0421 original new injector

Engineered as a precision fuel delivery component for CAT C4.4 diesel platforms, the Caterpillar 370-7287 high-pressure common rail injector delivers industrial-grade reliability for demanding heavy-duty operation. Built with a wear-resistant high-strength steel alloy body and multi-hole nozzle, it supports operating pressures between 1600 and 2000 bar to deliver uniform fuel atomization, optimize combustion efficiency, reduce fuel consumption and cut exhaust emissions. Its OEM-grade design meets or exceeds original Caterpillar specifications, enabling stable performance under extreme load and temperature conditions ranging from -20°C to 120°C.

This injector is compatible with all 4.4L CAT C4.4 diesel engine variants, covering both turbocharged and non-turbocharged configurations for industrial, construction, agricultural and power generation use cases. It interchangeably matches verified cross-reference and replacement numbers including 287-4973, 287-4972, 10R-7220, 326-4754, 326-4765, 326-4770 and 326-4771 to simplify part matching. It fits a wide range of CAT equipment, such as 305E2/308E2/309D excavators, 906H/908M loaders, 226D/232D skid steers and C4.4 diesel generator sets.

Certified to ISO 9001 and CE standards, the 370-7287 injector comes with a 12-month warranty and is engineered for easy, standardized installation with a 30–35 Nm torque specification and M14x1.5 fuel line connection. Routine maintenance follows OEM recommended intervals to minimize unplanned equipment downtime. For fleet operators, maintenance service providers and industrial parts distributors, it offers a cost-effective, long-lasting replacement solution that balances regulatory compliance, consistent performance and reduced long-term operational costs.