Caterpillar original Fuel Injector 8N-7005 4W-7015 Replacement for OEM 4W-7016 Cross Reference 7W-7032 for 3304 3306 Engine Excavator 235 Loader 966D 966E original new injector

Built for demanding diesel fuel-system service, the CAT 8N-7005 nozzle injector is a high-precision component designed according to OEM specifications and industrial manufacturing standards. It meters and atomizes diesel into fine droplets, supporting controlled spray patterns, efficient air-fuel mixing and stable combustion. By replacing a worn injector nozzle, it can help maintain engine output, improve fuel economy and reduce fuel waste, black smoke, unburned hydrocarbons and carbon deposits. The part is intended for direct OEM replacement in high-pressure direct-injection systems.

Manufactured from high-strength precision alloy steel, the nozzle uses micron-level machining tolerances at the tip for consistent spray patterns. Hardened construction provides wear resistance under continuous high-pressure operation, while advanced surface treatment adds protection against water contamination, sulfur exposure and chemical degradation. Thermal stability helps preserve dimensional accuracy at high operating temperatures. These industrial heavy-duty characteristics suit continuous-duty service across mining, construction, power generation and transportation, where durability and consistent injection performance support equipment reliability.

Compatibility references include 8N7005, 8N7006, 0R-3417/0R3417 and 330-2756/3302756. Listed engine applications cover CAT C7, C9, C10 and 3126 platforms, with equipment uses including excavators, wheel loaders, bulldozers, generator sets, mining and agricultural machinery, and marine auxiliary engines. Before installation, clean the injector bore, remove carbon deposits, inspect fuel lines, replace damaged seals and verify seat condition; use the correct installation tools.