419-03-33242 Hydraulic Fan Motor For Komatsu WA100 wheel loader

419-03-33242 Hydraulic Fan Motor For Komatsu WA100 wheel loader Featured Image
  • 419-03-33242 Hydraulic Fan Motor For Komatsu WA100 wheel loader

Short Description:

418-03-33241 hydraulic fan motor is an OEM-grade replacement part for Komatsu WA100-5, WA150-5, WA200-5 and WA250-5 wheel loaders.

Product Detail

Product Tags

description

419-03-33242 hydraulic fan motor adopts high-torque fixed displacement hydraulic structure, specially optimized for the high heat generation characteristics of WA320 medium and large loaders under full-load operation. Compared with small-tonnage fan motors, this model features higher output torque and stronger heat dissipation driving capacity, which can cope with the continuous heat accumulation of the whole machine during long-time heavy-load shoveling and transfer operations. The motor runs with low flow pulsation and sensitive speed regulation response, which can quickly increase fan speed for forced heat dissipation when the oil temperature rises, and reduce idle speed intelligently during light-load operation to reduce invalid power loss and effectively save fuel consumption.
The motor shell adopts thickened high-density cast iron structure with overall reinforcement treatment, which has excellent compression resistance and deformation resistance, and can resist strong vibration and impact load generated by WA320 loader during heavy-duty operation. The internal precision movement pair is made of high-strength alloy steel and processed by precision grinding and surface hardening technology, with super wear resistance and anti-fatigue performance.

product parameters

Part No：419-03-33242
Product Type：High-torque Fixed Displacement Hydraulic Fan Motor
Applicable Equipment：Komatsu WA320-5, WA320L-5 Medium and Large Wheel Loader
Structural Feature：Integrated reinforced shell, high-torque output design
Theoretical Displacement：36 cc/rev
Rated Working Pressure：22 MPa (220 bar)
Max Instantaneous Peak Pressure：25 MPa (250 bar)
Rated Working Speed：2300 rpm
Max Allowable Speed：2800 rpm
Starting Torque：≥45 N·m
Working Medium：ISO VG46 Anti-wear Hydraulic Oil
Working Temperature Range：-25℃ ~ +110℃
Leakage Standard：Zero visible leakage under rated pressure
Main Material：Reinforced thickened cast iron housing, hardened alloy steel movement pair, modified FKM composite seal
Installation Method：Standard flange vertical fixed installation
Interchangeability：1:1 OEM original full interchangeable

advantage

• 36cc high-torque displacement design, tailored for WA320 heavy-load heat dissipation. It delivers strong fan driving torque and rapid thermal response to control engine and hydraulic oil temperature, cutting fuel consumption during long heavy-duty operations.
• Integrally reinforced thick cast iron housing features excellent vibration and impact resistance, preventing shell deformation and oil leakage under harsh mining and earthmoving conditions.
• Hardened precision internal motion pairs have great wear and anti-pollution capacity. Stable operation is maintained even with slightly contaminated hydraulic oil, reducing internal wear and extending service life.
• Upgraded FKM composite seal offers high temperature and aging resistance. It effectively eliminates common failures including internal leakage and shaft oil seepage to lower maintenance frequency.
• Optimized gear profile reduces hydraulic pulsation and running vibration, protecting radiators and hydraulic pipelines from fatigue damage and improving system stability.
• 1:1 OEM mounting dimensions enable direct bolt-on replacement without pipeline modification, shortening machine downtime for on-site maintenance.
• Every unit undergoes full-condition bench tests for reliable torque output and stable speed regulation, ensuring consistent performance under continuous heavy workloads.

FAQ 

Q1: Which equipment does 419-03-33242 fan motor fit?
A1: This hydraulic fan motor is specially applicable to Komatsu WA320-5 and WA320L-5 wheel loader. 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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