original 7W7026 Pencil Fuel Injector Nozzle for 3406 3406B 3408 3412 Diesel Engine Excavator 375 Dozer D9L 773D 7W-7026 7W7031 7W7032 original new injector

Engineered for demanding heavy-duty applications, the 7W7026 Fuel Injector Nozzle delivers OEM-grade performance for diesel engines operating in construction, mining, marine, and power generation environments. This precision-manufactured injector nozzle assembly serves as a direct replacement for OE number 7W-7026, with a comprehensive cross-reference interchange covering C7, C9, C10, C11, C12, and C13 engine families. Built from high strength alloy steel through precision CNC machining, this component is designed to withstand extreme pressure and temperature conditions common in industrial diesel service.

Micron-level nozzle machining ensures optimal spray pattern distribution and consistent fuel delivery, contributing to improved fuel economy and reduced operating costs. Superior wear resistance, achieved through hardened alloy steel construction and advanced surface treatment technology, extends service life while providing corrosion protection against fuel contamination. Precise fuel metering supports cleaner combustion and lower particulate emissions, helping fleet operators meet environmental compliance requirements. The 7W7026 nozzle is compatible with hydraulic excavators, wheel loaders, bulldozers, motor graders, mining trucks, generator sets, marine engines, and agricultural equipment.

Installation requires verifying the correct part number, cleaning the injector bore, replacing sealing washers, and tightening to OEM torque specifications before bleeding the fuel system. This part addresses common failure indicators including difficulty starting, excessive exhaust smoke, engine misfire, reduced power, and irregular idle. Backed by a 12-month warranty, the 7W7026 injector nozzle is available for global B2B distribution across major industrial markets.