Hydraulic Pump 708-7W-00320 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 stepless real-time fan speed adjustment. Automatically raise speed under high temperature and reduce speed at low temperature, lower redundant engine load and cut 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 required, complete on-site replacement within 30 minutes to reduce machine downtime and maintenance labor cost.

✅ Reinforced Shock-Resistant Heavy-Duty Motor Shell

Thickened integral alloy cast iron housing with outstanding anti-vibration and impact resistance, adapts harsh mine and quarry working conditions, effectively avoid 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 wear-resistant gaskets, stable sealing performance within -20℃ ~ +98℃ hydraulic oil temperature range, thoroughly solve oil leakage faults of old fan motors.

✅ Triple Strict Factory Performance Inspection

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

✅ Dual Supply Versions: Brand New & Remanufactured

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

✅ Exclusive Compatibility For PC1250 Series Large Excavators

Perfectly matched cooling drive component for Komatsu PC1250-8, PC1250-8r, PC1250sp-8 mining excavators, single motor 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, reduce mechanical vibration and running noise, extend service life of radiator, fan blade and peripheral hydraulic pipelines.

✅ Extend Whole Machine Service Life

Constant temperature adaptive cooling keeps engine coolant and hydraulic oil within standard temperature range, avoid overheating damage of engine cylinder, main hydraulic pump and sealing components, lower long-term equipment overhaul frequency.

✅ Global After-Sales Warranty & Flexible Shipping Support

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

Condition: Brand new

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