VP44 Fuel Injection Pump 3937690 for Engine QSB5.9

Keywords: 3937690 VP44 fuel injection pump, QSB5.9 fuel injection pump, diesel engine spare parts, excavator construction machinery replacement parts

Product Overview

VP44 Fuel Injection Pump Part No.3937690 is a high-precision fuel supply core component for QSB5.9 diesel engine. It controls fuel delivery volume and injection timing accurately to guarantee stable engine power, optimize combustion efficiency and reduce fuel consumption. It serves as perfect replacement part for QSB5.9 engine overhaul and maintenance on excavators and construction machines.

Detailed Specifications

Key Features & Advantages

• Precisely calibrated before delivery, accurate fuel metering and stable injection timing.
• High precision internal components, strong wear resistance and long service lifespan.
• Excellent fuel atomization effect, improves engine power and lowers exhaust emission.
• Strict performance testing, stable operation under heavy load working conditions.
• Direct replacement design, well matched for QSB5.9 engine overhaul assembly.

Application Scope

• Fit Equipment: Excavators and construction machinery equipped with QSB5.9 diesel engine
• Widely used for machinery repair shops, engine rebuilding factories and heavy‑duty equipment overhaul services.

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

• Shock-proof inner packing + export neutral carton, prevent collision 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.