Fuel Injector 0445110307 for Engine B3.3 QSB3.3

Keywords: 0445110307 fuel injector, B3.3 QSB3.3 common rail injector, QSB3.3 diesel fuel injector, excavator engine injector assembly, construction machinery engine spare parts, aftermarket replacement fuel injector

Product Overview

Fuel Injector Part No.0445110307 is high‑precision common rail fuel injector, compatible with B3.3 and QSB3.3 diesel engines. It atomizes high‑pressure diesel fuel and injects precise fuel quantity into combustion chamber at accurate timing, ensuring stable engine power output, good fuel atomization and high combustion efficiency. This replacement fuel injector solves typical failures such as difficult cold start, rough idling, insufficient engine power, excessive black smoke and fuel return overflow caused by internal valve wear, nozzle clogging and sealing failure. Every fuel injector has completed strict flow and injection performance testing before delivery.

Detailed Specifications

Key Features & Advantages

• High‑precision manufacturing, fully match B3.3 / QSB3.3 engine common rail fuel system.
• Accurate fuel metering and good fuel atomization effect, improve combustion efficiency and reduce fuel consumption.
• Reliable internal sealing performance, effectively avoid fuel leakage and excessive return oil.
• Fix hard starting, unstable idle speed and heavy black smoke, restore engine original power performance.
• Direct replacement part for engine overhaul and fuel system maintenance of construction machinery.

Application Scope

Fit Equipment: Excavators, loaders and other construction machinery equipped with B3.3, QSB3.3 diesel engine. ‑ Widely used in engine repair shops, heavy‑duty equipment refurbishment and fuel system overhaul projects.

Our Company Advantage

We are professional supplier of full‑range construction machinery spare parts, supplying engine parts, hydraulic parts, electrical parts, seal kits and complete overhaul kits. ‑ Large ready stock for various machinery spare parts ‑ Factory‑direct wholesale competitive price ‑ Mixed‑order & one‑stop spare‑parts procurement supported ‑ Professional part‑number matching technical support service

Packaging & Shipping

Neutral export carton with anti‑collision inner packing, prevent nozzle damage during long‑distance transportation ‑ Multiple shipping options: sea freight, air freight, international express for small trial orders ‑ Export documents such as Commercial Invoice, Packing List can be provided.

Contact Us

If you need more excavator spare parts or other construction machinery replacement components, please send your parts list to us. We will offer our best quotation for you quickly.