418-03-33241 Hydraulic Fan Motor For Komatsu WA100 wheel loader

418-03-33241 Hydraulic Fan Motor For Komatsu WA100 wheel loader Featured Image
  • 418-03-33241 Hydraulic Fan Motor For Komatsu WA100 wheel loader

Short Description:

 708-1S-11212 hydraulic main pump is aftermarket replacement spare part for Komatsu PC50MR-2 mini excavator, also compatible with PC40MR-2, PC35MR-2 and PC45R-8.

Product Detail

Product Tags

description

418-03-33241 high-precision hydraulic fan motor is dedicated to the cooling circuit system of Komatsu WA series wheel loaders. Driven by the equipment hydraulic system, it outputs stable rotating power to drive the engine radiator and hydraulic oil radiator fan assembly. Adopting mature fixed-displacement gear hydraulic structure, the motor features stable torque output, sensitive speed regulation response and low flow pulsation. During heavy-load earthwork loading and long-distance transfer operations, the motor automatically increases fan speed to enhance heat dissipation and avoid system overheating; during no-load standby and light-load operation, it reduces speed intelligently to lower invalid power consumption and reduce equipment fuel consumption.
The motor shell is made of high-strength cast iron with stress relief annealing treatment, which effectively eliminates internal casting stress, resists structural deformation and fatigue damage caused by long-term vibration and temperature alternation of the loader. The internal precision friction pair adopts surface hardening and anti-wear treatment, which can adapt to slight impurity pollution of hydraulic oil in complex construction sites and maintain stable operating accuracy for a long time. Equipped with high-performance FKM fluorine rubber sealing components, it has excellent high-temperature resistance, low-temperature toughness and anti-aging properties, effectively preventing internal leakage and external oil seepage.

product parameters

Part No：418-03-33241
Product Type：Fixed Displacement Hydraulic Gear Fan Motor
Applicable Equipment：Komatsu WA100-5, WA150-5, WA200-5, WA250-5 Wheel Loader
Control Mode：Fixed displacement hydraulic drive, automatic speed regulation with hydraulic flow
Theoretical Displacement：30 cc/rev
Nominal Working Pressure：21 MPa (210 bar)
Max Instantaneous Peak Pressure：24 MPa (240 bar)
Rated Working Speed：2200 rpm
Max Allowable Speed：2600 rpm
Working Medium：ISO VG46 Anti-wear Hydraulic Oil
Working Temperature Range：-20℃ ~ +105℃
Main Material：High-strength cast iron housing, hardened alloy steel friction pair, FKM fluorine rubber seal
Surface Treatment：Precision grinding, surface hardening, stress relief annealing, anti-rust and anti-corrosion coating
Installation Method：Standard flange fixed installation, direct plug-and-play
Interchangeability：1:1 OEM original interchangeable, no modification required
Product Condition：Brand new aftermarket part, 100% hydraulic bench tested

advantage

• Optimized 30cc displacement design, exclusive matching for WA series loader heat load
The 30cc moderate displacement is calibrated for WA series wheel loaders’ continuous heat generation during earthwork and transfer. It balances heat dissipation and power consumption, delivering sufficient fan drive torque for heavy loads to avoid overheating, while cutting invalid power loss and reducing fuel consumption.
• Reinforced cast iron housing, strong resistance to vibration and thermal deformation
This motor adopts thickened high-strength cast iron housing with stress relief annealing to eliminate residual stress. It withstands long-term high-frequency vibration, cold-heat alternation and impact loads, preventing shell deformation and cracking to adapt to harsh outdoor construction environments.
• Hardened precision friction pair, excellent anti-wear and anti-pollution performance
Internal gear and valve plate pairs adopt high-quality alloy steel with surface quenching hardening. It delivers outstanding wear and pollution resistance, operating stably with slightly contaminated hydraulic oil, lowering internal wear and extending motor service life effectively.
• High-temperature resistant FKM sealing system, zero leakage operation
Equipped with premium FKM fluorine rubber seals, it features excellent temperature resistance and aging resistance. It maintains stable sealing under long-term high-pressure and high-temperature cycles, solving internal and external oil leakage and reducing daily maintenance costs.

FAQ 

Q1: Which equipment does 418-03-33241 fan motor fit?
A1: This hydraulic fan motor is specially applicable to Komatsu WA100-5 wheel loader, and fully compatible with WA150-5, WA200-5, WA250-5 series wheel loader models. It is recommended to confirm the equipment serial number before purchasing to ensure accurate matching.

Q2: What is the core function of this fan motor?
A2: It is the core power component of the loader cooling system. It converts hydraulic energy into mechanical energy to drive the radiator fan, dynamically adjusts fan speed according to hydraulic pressure and flow, and precisely controls engine coolant temperature and hydraulic oil temperature to prevent equipment overheating during heavy-load continuous operation.

Q3: What are the typical failure symptoms of aging or worn fan motor?
A3: Common faults include insufficient fan speed and poor heat dissipation leading to high water temperature and high oil temperature, unstable fan rotation with jitter, abnormal meshing noise inside the motor, slow speed response under heavy load, internal hydraulic leakage causing weak fan power, and external oil seepage of the shaft seal.

Q4: What inspections need to be completed before installing a new fan motor?
A4: First, check the quality and cleanliness of the hydraulic oil, replace deteriorated and contaminated hydraulic oil and filter elements. Second, inspect the cooling system relief valve, control valve and hydraulic pipeline for blockage, damage or stuck spool. Finally, fully flush the hydraulic pipeline and oil tank to remove metal debris and impurities, and complete air bleeding after installation.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.

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