Plain Hose 3970409 for QSB5.9 Engine

Keywords: 3970409 plain hose, QSB5.9 engine rubber hose, excavator diesel engine plain hose, construction machinery engine fluid pipeline spare parts

🔹Product Overview

Plain Hose Part No.3970409 is an essential pipeline spare part specially matched for QSB5.9 diesel engines, widely used on excavators and heavy‑duty construction machinery. It is applied for engine fluid circulation transmission, delivering coolant or oil medium reliably. Effectively solve medium leakage, pipeline aging and cracking problems caused by damaged original plain hose. Each plain hose is inspected for dimension and pressure‑resistance performance before export carton packaging and delivery.

🔹Detailed Specifications

🔹Key Features & Advantages

• High‑quality reinforced rubber material, excellent pressure‑resistance, oil‑resistance, coolant‑resistance and anti‑aging performance under heavy‑duty working conditions.
• Precise size and caliber production, perfect matching with original pipeline installation interface for quick assembly.
• Effectively eliminate fluid leakage, medium loss and peripheral component contamination caused by aging, cracking or bursting of original plain hose.
• Good flexibility and vibration‑resistant capability, adapt to long‑time engine vibration and temperature change environment, prolong service life.
• Perfect fit for QSB5.9 engine repair and overhaul projects.
• Stable interchangeability, can directly replace original OEM spare parts.

🔹Application Scope

Fit Equipment: Excavators and other heavy‑duty 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

• Export carton with shock‑proof protective packaging, avoid collision and scratch 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.