Caterpillar original 0R-3418 Fuel Injector Nozzle for Excavator, Fits 3304 3304B 3306 3306B Engines, Replacement for 8N-7005, Cross Reference 0R-1740 104-9453 original new injector

Built for the fuel-system demands of heavy-duty Caterpillar equipment, the CAT 0R-3418 diesel fuel injector nozzle is a new, OEM-equivalent component for high-pressure direct injection. It is commonly associated with Caterpillar C6.4, C7, and 3126 Series engine platforms, as well as industrial, generator, and construction equipment diesel engines. Equipment applications may include CAT 320C, 320D, 323D, 324D, 325D, 329D, and 330D excavators, together with loaders, generator sets, mining equipment, earthmoving machinery, and industrial power systems.

Within the injector assembly, pressurized fuel moves through precision-machined internal channels to the nozzle tip. When the required injection pressure is reached, the needle valve lifts and fuel passes through microscopic spray holes, atomizing into fine droplets before entering the combustion chamber. Accurate nozzle geometry and uniform spray patterns are designed to support consistent injection, improved combustion efficiency and engine response, optimized power output, and reduced fuel consumption. Proper atomization can also contribute to lower exhaust emissions and reduced carbon buildup, while precision engineering supports consistent performance throughout service life.

Manufactured from high-strength hardened alloy steel using precision CNC machining, the nozzle combines wear resistance with anti-corrosion surface treatment for harsh operating environments. Micron-level machining tolerances support stable fuel delivery and durability. Cross references 211318, 3264700, and 326-4700 assist parts identification, while neutral or customized packaging supports B2B sourcing requirements.