Hydraulic Pump 708-1S-00920 Fan Motor Komatsu

Product Overview

708-1S-00920 hydraulic fan motor is OEM-standard cooling replacement part made for Komatsu wheel loaders WA380, WA430, WA450 and WA470.

Working as the core power part of loader radiator cooling loops, this electro-proportional hydraulic fan motor automatically adjusts fan rotational speed responding to fluctuations of engine coolant temperature and hydraulic oil temperature. It delivers steady heat dissipation amid frequent loading, hauling and dumping cycles in quarries, freight yards and construction sites, effectively preventing engine overheating during long shifts and cutting redundant fuel consumption via intelligent speed tuning.

Product Highlights

✅ Intelligent Proportional Speed Regulation

Built-in DC12V proportional solenoid achieves stepless fan speed adjustment. Rotation speed rises under high-temperature heavy loading tasks and drops in low-load scenarios, lowering engine parasitic power wastage and cutting daily fuel expenditure.

✅ Precise OEM Dimensional Matching

Mounting flanges, threaded oil ports and output splines are fully consistent with original factory parameters. Field replacement can be completed quickly without extra drilling and welding, shortening loader downtime on busy construction sites.

✅ Vibration-Resistant Reinforced Housing

Monolithic thick cast iron shell buffers recurring mechanical vibration brought by bucket frequent lifting and bumpy unpaved roads, avoiding shell cracks and displacement of precision internal components.

✅ Multi-Layer Dustproof and Mudproof Seal Design

Tiered fluorine rubber oil seals together with outer dust gaskets adapt dusty quarry yards, concrete mixing stations and muddy construction zones, preventing abrasive grit from wearing internal sealing parts and extending service life.

✅ Multi-Step Factory Quality Control

All finished products pass pressure holding leak tests, speed accuracy calibration and extended full-load aging trials, filtering defective batches to decrease later maintenance frequency and expenses.

✅ Dual Procurement Options

Brand-new assemblies satisfy strict maintenance demands of large loader fleets; professionally remanufactured units renew all worn internal core structures, bringing obvious cost advantages for bulk wholesale orders.

✅ Wide Compatibility For Four Popular WA Loader Models

One spare part adapts WA380, WA430, WA450, WA470 mainstream wheel loaders, simplifying spare part classification and warehouse stocking work for distributors.

✅ Dynamically Balanced Smooth Operation

Precision-machined internal rotary components are processed with dynamic balancing treatment, lowering running vibration and noise as well as protecting fragile radiator fins and surrounding hydraulic pipelines.

✅ Stabilize Long-Term Whole-Machine Performance

Accurate thermal control keeps engine and main hydraulic assemblies staying within optimal working temperature bands, slowing aging of hydraulic pumps, rubber hoses and peripheral sealing pieces under cyclic heavy workloads.

✅ Flexible International Shipping and After-Sales Services

Sea freight, air freight and global express shipping selections are all available; tiered discounts are offered for bulk purchases, protected by standardized six-month worldwide warranty clauses.

Condition: Brand new

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