original 20R-1268 Fuel Injector Diesel Injector High Pressure Fuel Nozzle for C3500B 3508 3516 3512 3516B 3512B Marine Engine Parts 20R1268 original new injector

Engineered for continuous-duty industrial operations, the 20R-1268 fuel injector delivers precision fuel atomization and reliable high-pressure injection performance for 3500 Series diesel engines. Cross-referenced to 392-0204, 172-4675, 386-1756, 250-1304, 229-0200, 133-3345, 10R-1278 and 10R-1255, this OEM-grade assembly is a direct replacement for approved applications on 3512B, 3508B and 3516B V12 turbocharged, water-cooled electronic-injection engines used in marine, mining, oilfield and power generation service.

Manufactured to strict engineering tolerances, the injector features an optimized nozzle geometry that produces a superior spray pattern for complete combustion. High-strength alloy steel construction provides wear resistance, thermal stability under extreme operating temperatures, and corrosion protection suited to marine and offshore environments. The result is measurable operational benefit: increased combustion efficiency, improved fuel economy, reduced exhaust emissions, faster throttle response, better load acceptance and reduced carbon deposit formation over extended service intervals covering thousands of operating hours.

Typical field applications include prime and standby generator sets, cargo ships, tugboats, offshore drilling platforms, compressor stations, mine site power stations, cement plants, steel mills, chemical processing facilities and data center backup power systems. Recommended installation practice includes isolating the fuel system, cleaning the injector bore, fitting new seals and washers, applying specified torque values, priming the fuel system and performing leak and performance verification. Following OEM maintenance schedules, using clean high-quality diesel fuel and replacing filters regularly ensures maximum injector service life.