Caterpillar original 294-3500 2943500 Diesel Common Rail Fuel Injector for C15 C18 Engine Truck Construction Machinery original new injector

The Caterpillar 294-3500 fuel injector is an OEM-grade electronic unit injector (EUI) designed for the CAT C15, C15 ACERT, and C16 diesel engine platforms. Engineered to deliver precise fuel metering under demanding operating conditions, this injector supports consistent combustion efficiency, improved fuel economy, and stable engine output across heavy-duty on-highway and off-highway applications. It is also compatible with selected Caterpillar 3406E configurations used in industrial, generator, and marine service environments.

Manufactured to original equipment specifications, the 294-3500 incorporates high-precision nozzle machining and superior atomization technology to ensure uniform fuel spray patterns. Heavy-duty construction materials provide excellent high-temperature resistance and long-term corrosion protection, while internal electronic components maintain accurate injection timing and metering for reliable cold-start performance and reduced exhaust emissions. This unit is a direct-fit replacement for authorized cross references including 10R-8501, 387-9433, 295-1408, 328-2576, and 387-9427.

Suitable for heavy-duty trucks, mining trucks, excavators, wheel loaders, dozers, generator sets, oilfield equipment, marine propulsion systems, and industrial compressors, this injector offers OEM-level reliability and durability for both replacement and overhaul programs. Routine fuel filter replacement, scheduled fuel system inspection, and periodic electronic diagnostics are recommended to maintain peak injector performance and extend overall engine service life.