Core Features

• High-Temperature Coolant Transfer:            Efficiently delivers high-temperature coolant from the engine water jacket to the radiator,            ensuring complete cooling circulation and preventing engine overheating.

• Stable Pressure Regulation:            Maintains consistent cooling-system pressure, prevents vapor lock,            and supports uninterrupted coolant circulation under fluctuating engine loads.

• Flexible & Vibration-Absorbing Design:            Steel-wire reinforced structure provides axial displacement compensation (±15 mm),            reducing stress caused by vibration and thermal expansion.

• Leak-Proof Dual-Seal Protection:            Dual sealing lips and heavy-duty clamps ensure long-term leak-proof performance,            reducing coolant loss and environmental contamination.

• High Temperature & Corrosion Resistance:            Suitable for high-temperature and high-pressure coolant systems, with excellent resistance to coolant,            oil mist, dust, and chemical corrosion.

Product Advantages

• OEM-Level Fitment for Komatsu D65/D85:            Precisely matches original cooling system specifications, including hose length,            diameter, bend radius and connector angles for direct replacement.

• EPDM Inner Layer for Extended Lifespan:            Resistant to coolant corrosion, aging, and cracking with a service life ≥3000 hours.

• High Burst Pressure Reliability:            Steel-wire reinforcement ensures a burst pressure ≥0.8 MPa,            exceeding system pressure with a safety factor ≥2.5.

• Enhanced Sealing Durability:            Galvanized connectors combined with specialized clamps ensure leakage rates <0.05%,            ideal for heavy vibration and long-duty cycles.

• Fast & Easy Maintenance:            Modular structure allows on-site replacement in 15–20 minutes, minimizing downtime.

Installation & Maintenance Guidelines

1. Pre-Installation Inspection:            Check for cracks, bulging or aging. Ensure connectors are clean and apply coolant            to lubricate sealing lips.

2. Correct Clamp Torque:            Tighten clamps to 8–12 N·m. Avoid overtightening (damage risk) or undertightening (leak risk).

3. Scheduled Maintenance:            Inspect clamp tightness and leakage every 200 hours. Replace hose every 1500 hours or 1 year.

4. Avoid High-Temperature Contact:            Keep ≥50 mm distance from exhaust manifold or high-heat components to prevent thermal damage.

5. Cooling System Air Purge:            Remove trapped air before starting the engine to prevent air-lock–related overheating.

Suitable Scenarios & Core Value

This steel-wire reinforced coolant hose is ideal for heavy-duty operations in environments such as:

• Mining and quarrying sites

• Earthmoving and construction engineering

• Forestry and agricultural operations

• Wetlands and temperature-variable regions

Core Value:        Ensures stable cooling performance, prevents engine overheating, minimizes unexpected downtime,        and improves the operational efficiency and reliability of Komatsu D65/D85 machinery.