original 306-9390 Common Rail Fuel Injector for C6.6 Engine 928HZ 938H Wheel Loader Excavator Diesel Injector 3069390 292-3790 10R-7673 2645A749 original new injector

Engineered to deliver dependable performance in demanding diesel applications, this high-pressure common rail fuel injector (OE 306-9390 / 10R-7674) is designed as a direct-fit replacement for C6, C6.4, and C6.6 industrial, marine, and generator engines. Cross-referenced numbers include 320-0690, 310-9067, 306-9380, 292-3780, 292-3790, 320-0688, 321-0990, 321-3600, 382-0480, 2645A749, 2645A751, 2645A734, 2645A735, and 2645A719, giving procurement teams broad interchangeability across construction, mining, marine, agricultural, and power generation platforms.

Manufactured to OEM standards, the injector features precision flow calibration, a superior spray pattern, high-pressure durability, and a low-leakage design that supports stable fuel delivery and excellent cold-start performance. These characteristics translate into improved fuel atomization, higher combustion efficiency, reduced particulate emissions, lower fuel consumption, enhanced engine response, and an extended engine service life. Compatible equipment includes 320D, 320DL, 320D2, 323D, 323DL, 324D, 325D, 928HZ, 938H, IT38H, 963D, 120M, 12M, generator sets, and stationary industrial power units.

Installation requires verifying part number compatibility, cleaning the injector bore, inspecting the fuel rail, replacing sealing washers and O-rings, following torque specifications, priming the fuel system, and performing ECM diagnostics with injector balance rate verification. Proper maintenance, including scheduled filter replacement, premium diesel use, contamination control, and periodic performance testing, prevents hard starting, rough idle, excessive smoke, misfire, and power loss.