original 212-3463 Common Rail Diesel Fuel Injector for Excavator C10 C12, Replacement for 153-7923 194-5083 0R-8773 original new injector

Engineered specifically for the C12 platform, the 212-3463 electronic unit injector delivers a direct OEM-fit solution across the C12, C12 ACERT, C10, 3176, 3176B, 3176C, and 3196 diesel engine families. The EUI architecture consolidates high-pressure fuel generation, electronically controlled injection timing, integrated fuel metering, and high-efficiency atomization into a single assembly, ensuring precise combustion calibration that matches factory engine control parameters. Verified cross-references include 194-5083, 137-2500, 147-0373, 203-7685, 10R-0963, 10R-9235, 10R-1268, 0R-8773, and 390092X, allowing fleet operators to consolidate SKUs across mixed engine populations without calibration reprogramming.
Built for extreme-duty combustion environments, this injector sustains injection pressures exceeding 20,000 PSI (1,400 Bar) while maintaining computer-calibrated injection quantity across the full engine operating range. Premium hardened-steel internal components, advanced anti-corrosion surface treatment, and thermal-stable solenoid architecture ensure reliable performance under continuous high-exhaust-gas-temperature conditions found in mining haul trucks, articulated dump trucks, and large diesel generator sets. The assembly is validated for heavy-equipment applications including excavators, wheel loaders, motor graders, vocational trucks, oilfield power units, and auxiliary marine engines, delivering consistent fuel delivery and long service intervals demanded by industrial fleet operators.
Installation follows standard service procedures. Pre-installation requires verification of the part number against the engine serial number, replacement of sealing washers, and replacement of O-rings. The installer must disconnect the batteries, remove the valve cover and injector hold-down, extract the existing injector, inspect the injector bore, install the new unit, torque to specifications, perform injector trim calibration where applicable, prime the fuel system, and verify engine operation upon start-up. The 212-3463 installs without modification, restoring factory-rated power output, fuel efficiency, and emissions performance for C12-series powered equipment operating in construction, mining, power generation, and oilfield service environments.