Caterpillar original Diesel Engine Parts Fuel Injector Cross Reference 20R-3477, 20R-3483, 392-0219, 375-4106 Replacement for OEM, for 3512B/3516B Construction Machinery original new injector

Engineered as a premium fuel injection component for Caterpillar 3500 Series diesel engines, the 375-4106 Fuel Injector Group (Injector GP-Fuel) is optimized for the 3512B platform and fits verified configurations of 3512C, 3516B, 3516C and other 3500 Series engines. Fabricated from high-strength alloy steel to meet OEM specifications, it delivers precisely metered, high-pressure fuel atomization to stabilize combustion, optimize fuel efficiency, reduce exhaust emissions, and sustain reliable engine output even under extreme heavy-duty operating conditions.

This injector is compatible with Caterpillar’s advanced diesel fuel injection systems, and shares standardized cross-reference identifiers across OEM, remanufacturing and aftermarket supply chains to streamline parts sourcing and maintenance workflows. It supports a broad scope of industrial use cases across power generation, marine, mining, oil and gas, and construction sectors, powering equipment ranging from standby generators and marine propulsion systems to offshore drilling units, mining machinery and stationary industrial power plants.

Prior to installation, engine serial number compatibility must be confirmed, and all official Caterpillar service procedures and torque specifications should be strictly followed. Best practices for extended service life include using ultra-clean diesel fuel, replacing fuel filters on a regular schedule, monitoring exhaust smoke levels and preventing fuel contamination. Backed by a 12-month warranty, this OEM-equivalent injector helps industrial operators reduce unplanned downtime and maintain consistent equipment productivity.