Original 150-4453 386-1754 386-1774 392-0208 162-8813 Premium Common Rail Diesel Fuel Injector Assembly for C3500B Series Engine original new injector

Engineered as a direct replacement solution for 3500 Series heavy-duty diesel platforms, the 386-1774 Fuel Injector Assembly delivers precision fuel atomization and stable delivery pressure required by demanding industrial workloads. Fully interchangeable with 3861774, CAT3861774, 20R-1282, 11R-0667 and 392-0222, this injector is manufactured to OEM-level tolerances to guarantee proper spray pattern geometry, consistent injection timing and long-term sealing integrity across 3508B, 3508C, 3512B, 3512C, 3516B and 3516C engines.

Designed for high-load continuous-duty environments, the injector supports utility power plants, data center standby systems, prime power installations, offshore support vessels, cargo ships, marine gensets, surface and underground mining fleets, haul trucks, drilling rigs, fracturing units and construction power stations. Key performance benefits include enhanced engine power output, reduced fuel consumption, lower exhaust emissions and extended service intervals. The internal components are matched to withstand elevated combustion pressures typical of 3500 Series applications, minimizing carbon buildup, atomization loss and internal wear that commonly trigger black smoke or power loss.

For optimal service life, install with clean filtered fuel, replace all sealing components, verify fuel pressure specifications and perform a full leak inspection following commissioning. Always confirm engine serial number and arrangement number prior to ordering. Common field diagnostics addressed by this replacement include fuel leakage from worn seals, black smoke from poor atomization and power loss caused by restricted nozzle flow or fuel system contamination.