Perkins original  Diesel Injector 4W-7017 8N-7005 8N7005 0R-1745 0R-3422 OR3422 for 3406B 3408 3408C 3412C 3304 3306 Excavator Replacement OEM original new original new injector

The Perkins 4W7018 Injector Nozzle is engineered as an OEM equivalent replacement component for Perkins 3304, 3306, and 3406 diesel engine series. Manufactured from heat-treated alloy steel using precision CNC machining processes, the 4W-7018 nozzle delivers consistent high-pressure fuel atomization and stable spray pattern performance required by industrial, marine, and power generation applications. Its precision-ground needle valve and optimized internal geometry contribute to improved combustion efficiency, reduced emissions, and reliable cold-start behavior across demanding operating environments.

Designed to meet OEM equivalent quality standards, the Perkins 4W7018 injector nozzle supports a wide range of heavy equipment platforms including excavators, wheel loaders, bulldozers, motor graders, mining trucks, drilling equipment, diesel generator sets, and marine propulsion engines. The corrosion-resistant construction and excellent wear resistance ensure long service life under continuous high-pressure fuel delivery conditions. With a 12-month warranty, the 4W-7018 component provides dependable performance for engine rebuild, overhaul, and routine injector service programs. Proper installation requires clean fuel system components, verification of injector opening pressure, and adherence to Perkins service manual specifications to achieve optimal atomization and stable engine operation.

This Perkins 4W7018 fuel injector nozzle is suitable for distributors, fleet operators, and service workshops seeking reliable diesel fuel injection system spare parts. The 4W-7018 part number is authorized for use in cross-reference applications involving Perkins 3304, 3306, and 3406 engine families. Best practices such as using clean diesel fuel, replacing filters regularly, preventing water contamination, monitoring injector balance, and conducting periodic fuel system inspections help maintain consistent performance and extend component life across construction, mining, marine, power generation, and industrial machinery deployments.