original 20R-1276 Diesel Engine Fuel Injector Common Rail Fuel Injector for C3500 3508 3512 3516 Engine Spare Parts Replacement for OEM 392-0215 original new injector

Engineered for demanding heavy-duty operations, the 20R-1276 Fuel Injector delivers OEM-grade performance for 3512B, 3508B, and 3516B diesel engines deployed in mission-critical industrial, marine, and power generation environments. This electronically-controlled, high-pressure injector precisely meters and atomizes diesel fuel into the combustion chamber, ensuring optimal timing, complete fuel burn, and consistent engine output under continuous heavy load cycles. Fully cross-referenced with OE numbers 392-0215, 386-1767, 124-6351, 162-8811, 10R-1291, 0R-8893, and 0R-8691, it offers a reliable direct-fit replacement for global fleet operators and MRO buyers.

Operationally, fuel supplied from the high-pressure pump enters the injector body, where the electronic solenoid opens at precise timing, atomizing diesel through optimized spray patterns for efficient mixing with compressed intake air. The result is enhanced power output, sharper throttle response, reduced unburnt fuel and smoke emissions, and improved thermal efficiency. Typical applications include standby diesel gensets, prime power plants, commercial vessels, offshore support boats, mining haul trucks, heavy-duty loaders, offshore drilling rigs, and heavy industrial manufacturing facilities.

For maximum service life, use clean diesel fuel meeting OEM specifications and replace fuel filters frequently in dusty or mining environments. Installation requires fuel system depressurization, battery disconnection, injector bore cleaning, fresh seal installation, OEM torque values, leak testing, and ECU injection timing calibration. Diagnostic checks include spray pattern inspection for hard starts, nozzle atomization review for black smoke, and flow balance testing for power loss.