Caterpillar original Caterpillar 3512 E3512 Engine Common Rail Fuel Injector Assembly 6L4357 7E6408 9Y3773 4P9077 for C3500 Construction Machinery original new injector

Engineered exclusively for the CAT 3512A diesel engine platform, the Caterpillar 6L4357 is a brand-new high-pressure direct injection diesel fuel injector built to meet OEM-equivalent quality standards. Designed for cylinder head installation, it carries the core OE part number 6L4357 and cross-references to replacement part numbers 207-8724 and 208-8724, with full compatibility across all 3512A engine variants for industrial power, generator set, marine propulsion, oilfield power and mining equipment use.

Constructed from high-strength alloy steel with a corrosion-resistant coating, the injector features a precision needle valve, calibrated internal components and a high-pressure sealing system to deliver consistent performance across extreme temperatures, high injection pressures and variable load conditions. It operates via a six-stage direct injection cycle, metering fuel precisely and atomizing it into fine droplets to support complete, efficient combustion in even harsh industrial operating environments.

Suitable for a wide range of heavy-duty equipment including diesel generator sets, marine propulsion systems, mining trucks, drilling equipment, oilfield power systems and stationary power plants, the 6L4357 helps maintain engine power output, optimize fuel economy, reduce exhaust emissions and minimize unplanned downtime. It comes with a 12-month warranty, supports neutral or customized packaging, and is available for global aftermarket supply to support industrial, marine, power generation, mining and oil and gas operations.