original 4377547 Common Rail Fuel Injector Replacement for 20R-2296 3508B 3512B 3516C 793C 793D Diesel Engine original new injector

Engineered as an OEM-specification fuel injector assembly for the 3512B V12 diesel platform, this component delivers precise fuel metering and full atomization across the entire 3500 Series engine family, including the 3508B V8, 3516B V16, and 3516C V16 variants. The direct injection design operates at a maximum pressure of 2200 bar, with a precision multi-hole nozzle that optimizes spray pattern geometry for complete fuel-air mixing. This results in improved combustion efficiency, reduced fuel consumption, and lower exhaust emissions under continuous heavy-load conditions typical of mining haul trucks, industrial generator sets, and marine propulsion applications.

Manufactured from high-grade steel alloys with hardened internal components and OEM-standard seals, the injector is built to withstand extreme operating environments from -40°C to +120°C. Each unit is precision-machined to match original factory tolerances, ensuring reliable performance in corrosive marine atmospheres, high-dust mining sites, and high-temperature oil and gas power systems. The robust construction supports a service life of 8,000 to 10,000 operating hours, making it a dependable choice for fleet operators and industrial maintenance programs worldwide.

Routine inspection every 500 hours, combined with regular fuel filter replacement and use of high-quality diesel, helps maintain consistent injection timing and spray pattern integrity. Installation follows a straightforward seven-step process covering engine cooling, bore cleaning, O-ring lubrication, torque application, fuel and electrical reconnection, priming, leak testing, and final performance verification. A 12-month warranty backs every unit, providing procurement teams and service workshops with confidence in long-term operational reliability for 3512B-powered equipment across global mining, marine, power generation, and construction sectors.