Hydraulic Pump 708-7S-00820 Fan Motor Komatsu

Product Overview

708-7S-00820 hydraulic fan motor is OEM interchangeable cooling drive component specially matched for Komatsu large mining excavator PC1250-8, PC1250-8r and PC1250sp-8.As the core power component of excavator cooling system, this proportional variable hydraulic fan motor drives radiator cooling fan, realizing stepless automatic speed adjustment according to engine coolant and hydraulic oil temperature. It intelligently balances cooling efficiency and engine fuel consumption, effectively avoiding engine and hydraulic system overheating failure during long-hour heavy-load mining, quarry and earthmoving construction operations.

Product Highlights

✅ Intelligent Proportional Variable Speed Cooling Control

Built-in proportional solenoid valve realizes real-time stepless fan speed adjustment based on system temperature. Speed rises automatically under high temperature and drops at low temperature, reducing extra engine load and cutting fuel consumption.

✅ 100% OEM Matching Plug-and-Play Installation

All mounting hole layout, oil port size and spline output shaft fully match Komatsu original factory standards. No cutting, drilling or pipeline adjustment needed, complete on-site replacement within 30 minutes to reduce equipment downtime and maintenance labor cost.

✅ Reinforced Shock-Resistant Heavy-Duty Motor Housing

Thickened integral alloy cast iron shell with excellent anti-vibration and impact resistance, adapts to harsh mine and quarry working conditions, effectively avoiding shell deformation and internal hydraulic leakage.

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

Imported fluorine rubber composite oil seals matched with built-in dust-proof wear-resistant gaskets, stable sealing performance within -20℃ ~ +98℃ hydraulic oil temperature range, completely solve oil leakage faults of old fan motors.

✅ Triple Strict Factory Performance Inspection

Each fan motor undergoes static pressure leakage test, speed regulation linearity calibration test and full-load continuous aging test, all unqualified products are eliminated to greatly lower after-sales maintenance rate.

✅ Dual Supply Options: Brand New & Remanufactured

Two versions 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 accessories, cost-effective for bulk orders.

✅ Exclusive Compatibility For PC1250 Series Large Excavators

Perfectly matched cooling drive motor for Komatsu PC1250-8, PC1250-8r, PC1250sp-8 large mining excavators, single part covers three mainstream models for easy spare parts inventory management.

✅ Low Vibration & Low Noise Smooth Operation

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

✅ Protect Engine & Hydraulic System Service Life

Adaptive constant temperature cooling keeps coolant and hydraulic oil within normal working range, avoid overheating damage of engine cylinder block, main hydraulic pump and sealing components, lower long-term equipment overhaul frequency.

✅ Complete Global After-Sales Warranty & Flexible Shipping Support

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

Condition: Brand new

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