Perkins original Perkins 20R3483 Common Rail Fuel Injector 375-4106 Replacement for 3516C 3512C 3512B Engine new injector original new injector

The Perkins 3512B Fuel Injector 20R-3483 is an original equipment unit injector designed for the Perkins 3500 Series V12 diesel platform, including the 3512B, 3508B, 3508C, 3512C, 3516B, and 3516C engines. Built to OEM fuel system specifications, it features CNC-machined internal components with micron-level tolerances and a high-strength alloy steel body engineered for continuous industrial duty cycles in power generation, marine propulsion, mining haul trucks, oilfield compression, and heavy construction equipment.

Calibrated to deliver accurate fuel metering and excellent atomization, the injector promotes cleaner combustion, improved fuel efficiency, and stable injection performance across all engine loads. Special surface treatments provide corrosion resistance against fuel contamination and harsh operating environments, extending service life under demanding conditions. Direct OEM fitment ensures drop-in replacement without modification, and the unit is fully interchangeable with cross reference numbers 10R-4931, 10R-4932, 2490713, 10R2827, 0R3539, 20R3247, 3754106, 3861752, and 20R3483RX.

Routine maintenance includes the use of clean high-quality diesel fuel, regular fuel filter replacement, periodic injector balance testing, and monitoring of fuel consumption and exhaust smoke. During installation, the fuel system must be cleaned, the injector bore inspected, new O-rings and sealing components fitted, and Perkins torque specifications strictly followed. A post-installation leak test and engine diagnostic verification are required to confirm correct injector operation and long-term reliability.