Caterpillar original 212-3464 common rail diesel fuel injector nozzle assembly for C10 C12 NT855 engine replacement for OEM original new injector

The Caterpillar 212-3464 fuel injector is an OEM-grade electronic unit injector engineered for Caterpillar C10 and C12 diesel engine platforms. Designed as a direct replacement for part numbers 212-3464, 10R-0957, and 20R-2057, this injector delivers precision fuel metering and consistent atomization to support stable combustion across demanding operating conditions. Its rugged construction and corrosion-resistant materials ensure long service life in heavy-duty industrial and mobile equipment applications.

This injector is purpose-built to enhance engine efficiency, power output, and cold-start reliability while helping reduce fuel consumption and exhaust emissions. Each unit undergoes factory performance testing to verify injection pressure stability and flow consistency, meeting OEM equivalent standards. The component integrates seamlessly with the engine's electronic control module, providing accurate fueling response for trucks, excavators, generator sets, marine propulsion systems, and other industrial power units equipped with C10 or C12 engines.

Installation requires clean injector bores, replacement of sealing components, and verification of the injector harness and ECM compatibility. Technicians should apply OEM torque specifications, perform an injector cutout test following installation, and inspect for fuel leakage after startup. Routine maintenance includes using clean diesel fuel, regular fuel filter replacement, water separator drainage, and periodic injector diagnostics to sustain optimal performance and prevent common symptoms such as excessive exhaust smoke, power loss, and elevated fuel consumption.