Perkins original Perkins 20R-3477 Diesel Common Rail Fuel Injector for 3512B 3516B Engine 5130B 5230B new injector original new injector

The Perkins 3512B fuel injector 20R-3477 is engineered as a direct OEM replacement component for the Perkins 3512B series diesel engine platform, supporting part numbers 10R-2106, 10R-2116, 328-9002, 330-0402, 249-0713, 387-9433, 522-5638, 20R3477RX, and 10R2106RX. Built to original Perkins fuel system performance standards, this injector assembly delivers precision fuel delivery with consistent spray patterns, optimized atomization, and stable high-pressure operation across demanding industrial, marine, mining, offshore, generator, and oilfield applications.

Manufactured using hardened steel technology and protective surface treatment, the 20R-3477 injector is designed to resist wear and corrosion in harsh operating environments such as marine propulsion systems, offshore platforms, and mining operations. The multi-hole nozzle design ensures even fuel distribution throughout the combustion chamber, reducing localized hot spots, minimizing carbon buildup, lowering vibration, and improving idle quality and load response for continuous heavy-duty service.

Each 20R-3477 injector is flow-tested to verify accurate fuel quantity delivery and assembled according to OEM-level tolerances to ensure reliable long-term performance. Installation follows standard procedures: shut down the engine, isolate the fuel supply, remove retaining hardware, extract the existing injector, inspect the bore and seating, install a new sealing washer, torque the new injector to OEM specification, reconnect fuel lines, bleed air, and verify smooth engine operation without leaks. Preventive maintenance significantly extends injector service life in industrial fleet operations.