original 9Y3773 Fuel Injector for 3508 3508A 3512 E3512 3516 Excavator Diesel Engine Common Rail Injector 4P9075 4P9076 4P9077 7E6408 0R2429 original new injector

Engineered for heavy-duty diesel service, the 9Y3773 Fuel Injector Assembly delivers dependable performance across 3500 Series industrial power units. Cross-referenced with 0R2503, this mechanical diesel injector is manufactured to OEM-equivalent standards using high-strength alloy steel with anti-corrosion treatment, ensuring long operational lifespan under continuous-duty conditions. It is fully compatible with 3508B, 3512A, 3512B, and 3516B engines used in generator sets, marine propulsion systems, mining power units, and offshore oil platforms.

The 9Y3773 injector provides high-precision fuel atomization and optimized combustion efficiency, reducing fuel consumption and controlling exhaust emissions. Its stable injection characteristics support excellent cold start performance and reliable operation in demanding environments, from European marine fleets and Middle East oil & gas operations to African mining projects and Southeast Asian power plants. Superior wear resistance and consistent spray patterns help operators avoid common failures such as hard starting, black smoke, white smoke, and power loss caused by internal injector wear or restricted fuel delivery.

Each unit is supplied brand new with a 12-month warranty and is ready for direct installation following OEM torque specifications. Recommended practices include cleaning the injector bore, replacing seals and washers, bleeding the fuel system, and verifying injector balance. B2B buyers, distributors, and OEM service partners can rely on this injector for large-volume procurement supporting industrial power generation and marine applications worldwide.