Hydraulic Pump 708-7W-00350 Fan Motor Komatsu

Product Overview

708-7W-00350 hydraulic fan motor is OEM interchangeable cooling drive component exclusively designed for Komatsu large mining excavator PC1250-8, PC1250-8r and PC1250sp-8.As the core power unit of excavator cooling system, this electro-proportional variable hydraulic fan motor drives radiator cooling fan and realizes stepless speed adjustment automatically according to engine coolant and hydraulic oil temperature. It balances cooling efficiency and fuel consumption intelligently, effectively preventing engine and hydraulic pump overheating during long-hour heavy-duty mining, quarry and earthmoving construction.

Product Highlights

✅ Intelligent Proportional Variable Speed Cooling Control

Built-in DC12V proportional solenoid valve realizes real-time stepless fan speed adjustment based on system temperature. Fan speed rises at high temperature and reduces at low temperature to cut unnecessary engine load and save fuel.

✅ 100% OEM Matching Plug-and-Play Installation

All mounting hole layout, oil port caliber and spline output shaft comply with Komatsu factory original standards. No cutting, drilling or hydraulic pipeline modification required, complete on-site replacement within 30 minutes to reduce machine downtime.

✅ Reinforced Anti-Vibration Heavy-Duty Motor Housing

Thickened integral cast iron shell with strong shock and vibration resistance, adapts harsh mine and quarry environments, prevents shell deformation and internal hydraulic leakage.

✅ Multi-Layer High-Temperature Anti-Leakage Sealing System

Imported fluorine rubber composite oil seals with built-in dust-proof gaskets, stable sealing performance within -20℃ ~ +98℃ oil temperature, thoroughly solves oil leakage faults of old fan motors.

✅ Triple Strict Factory Performance Inspection

Each motor passes static pressure leakage test, speed linearity calibration test and full-load continuous aging test, all defective products are screened out to lower after-sales failure rate greatly.

✅ Dual Supply Versions: Brand New & Remanufactured

Two options to fit different procurement budgets. Remanufactured motors retain intact original housing, all worn internal pistons, valve plates, bearings and seals are replaced with brand-new precision parts, cost-effective for bulk orders.

✅ Exclusive Compatibility For PC1250 Series Large Excavators

Perfectly matched cooling drive component for Komatsu PC1250-8, PC1250-8r, PC1250sp-8 mining excavators, single unit fits three mainstream models for easy spare parts inventory management.

✅ Low Vibration & Low Noise Stable Operation

Internal piston assembly adopts precision grinding and dynamic balance treatment, reduces running mechanical vibration and noise, extends service life of radiator, fan blade and peripheral hydraulic pipelines.

✅ Effectively Protect Whole Machine Hydraulic & Engine System

Adaptive constant temperature cooling keeps coolant and hydraulic oil within standard working range, avoids overheating damage of engine cylinder, main pump and sealing components, cuts long-term overhaul frequency of construction equipment.

✅ Complete Global After-Sales Warranty & Flexible Shipping

6-month global quality warranty for non-artificial damage. Multiple shipping solutions including sea freight, air freight and international express are supported, mass stock enables 1-3 working days fast shipment, tiered wholesale discount available for large quantity orders.

Condition: Brand new

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