Caterpillar original Caterpillar 373-4087 fuel injector replacement for OEM new injector original new injector

The Caterpillar fuel injector 373-4087 is engineered as a direct OEM replacement component for the CAT 3500 series heavy-duty diesel engine family, including the 3508, 3508B, 3512, 3512B, 3516, 3516B, and 3520 models. It carries the cross reference numbers 3734087, 392-0214, and 3920214, ensuring accurate fitment across a broad range of industrial Caterpillar applications. Built to original equipment specifications, this injector assembly delivers consistent performance in the most demanding operating environments.

Precision fuel metering technology ensures that accurate quantities of fuel are delivered to each cylinder during every combustion cycle, maintaining stable combustion pressure and consistent engine power output. Ultra-fine atomization of the fuel spray promotes complete combustion, which directly reduces fuel consumption and lowers exhaust emissions including particulate matter and NOx. These performance characteristics make the 373-4087 injector suitable for mining haul trucks, marine propulsion systems, offshore energy platforms, oil and gas operations, and industrial power generation equipment where reliability and efficiency are critical.

Manufactured from industrial-grade metallurgical materials with wear-resistant internal components, the 373-4087 is designed for long service life under continuous heavy-load operation. Corrosion-resistant construction allows the injector to perform reliably in marine and offshore environments exposed to salt and humidity, while high-temperature resistance supports sustained operation in high-output generator sets and propulsion engines. This fuel injector assembly provides a dependable replacement solution for maintenance professionals and fleet operators seeking OEM-equivalent performance for Caterpillar 3500 series diesel engines.