Caterpillar original For C9.3 Engine Common Rail Fuel Injector 456-3579 for Sprayer Excavator 336E 336F Loader Replacement for OEM 417-3013, Cross Reference 324-5467 364-8024 original new injector

For procurement teams, heavy equipment maintenance supervisors and industrial parts distributors sourcing dependable fuel system components for Caterpillar C9.3 engine fleets, the CAT 456-3579 is a precision-engineered high-pressure common rail diesel fuel injector built for harsh operating conditions. It is compatible with Caterpillar C9.3, C9.3 ACERT and C9.3B engines, as well as engines for industrial power units, generator sets, marine power systems and construction equipment. As a core fuel injection component, it supports consistent fuel atomization, stable combustion and reliable engine performance across heavy-duty use cases.

Manufactured to meet strict OEM specifications, this injector delivers precise fuel metering even under the extreme pressure and temperature conditions common at construction, mining, power generation and marine worksites. Its high injection accuracy optimizes combustion efficiency, boosts engine power output, reduces fuel consumption and cuts NOx and particulate matter emissions. Industrial-grade construction offers corrosion resistance and an extended service life, while its OEM-matched design enables direct, modification-free fitment.

The 456-3579 injector fits a broad range of CAT heavy equipment, including excavators, wheel loaders, motor graders, rollers, generator sets and mining equipment, with global availability and worldwide technical support for B2B customers. Following official CAT installation guidelines and scheduled maintenance practices maximizes its service life, and standardized diagnostic procedures enable efficient fault identification to minimize equipment downtime.