original 10R-7673 Diesel Fuel Injector 320-0677 10R-7671 2645A749 Common Rail Injector for C6.6 C6.4 C4.2 C4.4 320D 321D 323D Excavator Parts original new injector

Engineered for demanding heavy-duty applications, the 10R-7673 fuel injector delivers precision fuel delivery for C6 series diesel engines used across construction, mining, power generation, agricultural, and marine sectors. This industrial-grade common rail injector supports the full C6 family—C6.2, C6.4, C6.6, and C6.7—covering power ratings from 110 hp up to 250 hp, and is fully cross-referenced with authorized numbers including 10R7673, 326-4703, 3264703, 317-8878, 10R-7654, 10R7655, 0445110378, 7135-405, 148-654, and 23670-30120.

Built from high-strength steel alloy and CNC-machined to tight tolerances, the 10R-7673 features a multi-hole nozzle design that ensures an optimal atomized spray pattern for improved combustion efficiency and reduced emissions. It operates at injection pressures of 1600-1800 bar, delivers a flow rate of 85-95 L/h, and maintains response times below 1 ms across an operating temperature range of -40°C to 150°C. Thermal and vibration shock resistance enables continuous 24/7 operation, while ISO 9001 and ISO/TS 16949 compliance guarantees consistent OEM-grade performance and long service life.

Installation requires torque of 30-35 Nm, ECU calibration, and spray pattern verification for optimal results. Recommended maintenance includes injector inspection every 500 operating hours, fuel filter replacement every 250 hours, and periodic ultrasonic cleaning. Backed by a 12-month / 1000-hour warranty, this injector is the reliable replacement solution for fleet operators, OEMs, and industrial equipment distributors seeking dependable diesel performance.