Perkins original Perkins 203-3464 Diesel Engine Fuel Injector 161-1785 116-5425 170-5252 229-5918 C10 C12 Excavator Parts new injector original new injector

The Perkins C12 fuel injector 203-3464 / 2033464 is engineered as a direct OE replacement for the Perkins C12 12.0L inline six-cylinder diesel engine platform, which operates on an electronically controlled unit injection fuel system. With cross references including 10R-1003, 212-3463, 317-5278, 281-7152, 20R-0055, 212-3465, 212-3468, 317-5279, 166-0149, 10R-1258, and 187-6549, this injector assembly supports flexible sourcing for heavy-duty truck, bus, excavator, generator set, marine propulsion, mining, agricultural, and off-road equipment applications. Industrial-grade construction delivers precision fuel metering, fine atomization, and stable idle performance across the engine's commercial marine rating range of 340–490 bhp at 1800–2300 rpm.

This replacement injector is suitable for B2B diesel parts distribution, fleet maintenance operations, engine rebuild programs, and heavy equipment service channels serving Perkins C12 powered vehicles and machines. The component is designed for engine-specific fitment and replacement-ready installation, supporting power recovery, fuel economy improvement, and smoke reduction in working engines. Compatible with heavy-duty trucks, buses, construction machinery, mining equipment, agricultural machinery, marine diesel engines, generator sets, industrial power units, and off-road equipment fitted with the C12 series engine.

Proper installation and maintenance require clean diesel fuel, scheduled fuel filter replacement, regular water separator draining, and clean fuel tank condition. Before fitting, confirm the injector part number, engine model, injector code, and engine serial number, then replace O-rings and sealing washers. Follow the official Perkins service manual for torque values and installation sequence, then perform leak inspection, idle testing, and diagnostic code scanning after start-up to ensure reliable operation in heavy-duty service.