ISF3.8 Diesel Engine Fuel Injection Pumps 4037021

Keywords: 4037021 fuel injection pump, ISF3.8 engine high pressure fuel pump, diesel engine fuel injection pump assembly, excavator engine spare parts, construction machinery fuel system component, aftermarket replacement fuel pump

🔹Product Overview

Fuel Injection Pump Part No.4037021 is core high‑pressure fuel supply component for ISF3.8 diesel engine, widely fitted for excavators and heavy‑duty construction machinery. It pressurizes diesel fuel and delivers precise high‑pressure fuel to injectors, controls fuel injection volume and timing to ensure stable engine power output and good combustion efficiency. This replacement fuel pump resolves common failures including hard engine starting, power drop, excessive exhaust smoke, unstable idle speed and abnormal fuel pressure caused by original pump internal wear, valve damage and oil circuit blockage. Each fuel injection pump is strictly tested on pressure and overall performance before shipment.

🔹Detailed Specifications

🔹Key Features & Advantages

• High‑precision alloy components, excellent wear‑resistance, stable pressure output under heavy‑duty working conditions.
• Accurate fuel metering performance, improves engine power and reduces black smoke emission.
• Reliable internal sealing structure, effectively avoids fuel leakage and pressure loss.
• Exact mounting dimensions, direct replacement, suitable for ISF3.8 engine fuel system overhaul and repair.
• Perfectly solves hard start, insufficient power and unstable idling faults of original fuel pump.

🔹Application Scope

Fit Equipment: Excavators and heavy‑duty machinery equipped with ISF3.8 diesel engine ‑ Widely applied for engine repair workshops and routine equipment maintenance 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 box with shock‑proof inner packing, avoid scratch and collision 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.