Hydraulic Pump 708-1W-00210 Fan Motor Komatsu

Product Overview

708-1W-00210 hydraulic fan motor is OEM-certified heavy-duty cooling replacement part custom-built for Komatsu PC78-5, PC75-3 and PC75uu-3 excavators.

As the indispensable power component of radiator cooling assemblies suited for these three excavator variants including the compact ultra-short tail PC75uu-3 model, this electro-proportional hydraulic fan motor dynamically adjusts fan rotational speed responding to real-time fluctuations of engine coolant and internal hydraulic oil temperatures. It delivers dependable heat dissipation across abundant construction work scenarios, such as municipal trench excavation, residential landscape refurbishment, mid-sized foundation digging, confined indoor renovation and rural farmland earthmoving projects. Adaptive speed control effectively prevents engine thermal overload amid frequent start-stop operation cycles on busy construction sites, while cutting redundant fan rotation during brief idle intervals to achieve noticeable fuel savings.

Product Highlights

✅ Triple-Model Adaptive Proportional Speed Tuning

Built-in compact DC12V proportional solenoid delivers smooth stepless speed tuning that matches distinct heat output features of PC78-5, PC75-3 and narrow-tail PC75uu-3. Fan speed automatically rises throughout heavy continuous digging for efficient heat removal, and drops during frequent work pauses to minimize idle power consumption and recurring fuel costs.

✅ Universal OEM Mount Layout Adaptable to Differing Engine Bay Sizes

Downsized reinforced mounting flanges, finely threaded hydraulic ports and precision splined shafts perfectly fit the engine compartment space of all three applicable excavator versions, including the tighter layout of PC75uu-3. No destructive frame cutting or pipeline remodeling is required in replacement procedures, drastically shortening machine downtime on construction sites.

✅ High-Strength Shock-Resistant Cast Iron Housing

Thickened cast iron shell absorbs repeated micro-vibration produced by excavation strokes and bumpy off-road trips, preventing casing cracks and loosening of delicate internal hydraulic components even under long-duration daily workloads.

✅ Versatile Seal System Fit for Complex Job Conditions

Stacked premium fluorine rubber oil seals and outer compact dust gaskets block concrete dust, garden soil particles and thick trench muck, slowing seal degradation for urban trench works, courtyard landscaping and muddy rural construction plots alike.

✅ Multi-Step Rigorous Factory Quality Control

All finished products pass a 22MPa 30-minute pressure retention leak test, accurate linear speed calibration and 2.5 hours of continuous full-load aging screening. Hidden manufacturing defects get eliminated pre-delivery to lower the frequency of subsequent field maintenance.

✅ Dual Procurement Schemes for Various Budget Demands

Factory-new units satisfy strict official maintenance standards from authorized Komatsu service centers; remanufactured versions comprehensively renew worn internal hydraulic core components, bringing prominent cost advantages for wholesalers that maintain large excavator spare inventories.

✅ Cut Inventory Pressure via Broad Model Compatibility

One single spare is compatible with three mainstream excavator variants, greatly reducing required SKU quantities, simplifying warehouse stock categorization and releasing capital locked in scattered spare stocks.

✅ Precision Dynamic Balancing for Internal Rotors

Mini rotating inner assemblies receive professional dynamic balancing processing to suppress vibration and operational noise, reliably safeguarding fragile radiator fins installed inside narrow engine bays especially for the ultra-short tail PC75uu-3.

✅ Extended Service Lifespan of Entire Hydraulic Loops

Stable thermal stabilization keeps medium-displacement engines and matched hydraulic fittings within optimal temperature bands, decelerating ageing of tiny pump internals, slim rubber hoses and peripheral seals under repeated startup-shutdown work rhythms.

✅ Reliable Cross-Border Shipping Adaptability

Compact overall dimensions reduce international freight expenditure, shock-absorbing industrial packaging remains stable across sea, air and regular parcel transportation. Tiered bulk purchase discounts are available, backed by standard 6-month global warranty excluding man-made damage and faulty installation.

Condition: Brand new

Other model specifications

Technical Specifications:

Specifications：