265-4925 Fan Motor for Caterpillar CAT938H wheel loader

product parameters

Part No：265-4925
Type：Fixed Displacement Hydraulic Piston Fan Motor
Applicable Equipment：CAT938H Wheel Loader
Material：High strength cast iron housing, alloy steel piston assembly
Surface Treatment：Anti-rust coating, internal cavity flushing & cleaning
Control Mode：Hydraulic flow control
Feature：Large output torque, low internal leakage, smooth rotation, excellent shock resistance, high wear resistance
Working Temperature：-20℃ ~ +110℃
Max working pressure：28MPa
Displacement：Fixed displacement
Dimensional tolerance：ISO2768-m standard
Package：Independent anti-rust packing + Standard export carton
Storage suggestion：Keep dry, avoid moisture, rust and collision, indoor constant temperature storage, stay away from corrosive gas

• High-strength cast iron housing. Precision casting plus stress relief annealing treatment. Excellent structural rigidity and shock resistance. It reliably withstands fluctuating hydraulic pressure and cyclic torque impact during loader operation. It is not prone to deformation under continuous heavy-duty working conditions and maintains stable torque output.
• Precision lapped internal friction pairs. Pistons, slippers and valve plate are machined to tight tolerance. It achieves higher volumetric efficiency and lower internal leakage. Rotation runs smoothly, responding rapidly to hydraulic flow change to adjust fan speed.
• Strong adaptability to harsh construction environments. Outer surface is coated with anti-rust protective layer. It can resist dust, mud, temperature fluctuation and continuous vibration on job sites, reducing risks of abrasion, cavitation and premature wear during long service cycles.
• Strict multi-stage inspection before shipment. Each motor is tested on hydraulic bench to check pressure, output torque and external leakage. Shaft dimension and assembly quality are fully verified. Batch consistency is guaranteed, and non-conforming products are eliminated before packing.
• Protect the whole cooling hydraulic circuit. Stable torque output keeps fan running steadily. Prevent engine overheating, safeguard fan pump, hydraulic hoses and sealing components against sudden pressure spikes, cutting down secondary damage of cooling related parts.

FAQ 

Q1: Which machine does 265-4925 fan motor fit? Can it replace other part numbers?
A1: It is specially designed for CAT938H wheel loader. Not universal for other CAT models. Mismatched motors may cause insufficient fan torque, fan stalling, engine overheating, pressure surge and damage to fan pump. Please carefully verify machine model and OEM part number before purchase.

Q2: What tests are performed before shipment?
A2: Every fan motor is 100% inspected on hydraulic test bench. Tests include pressure test, torque measurement, internal & external leakage inspection and dimensional verification. Simulated load assessment to guarantee stable performance after installation.

Q3: Is special adjustment required after installation?
A3: Precisely manufactured according to OE dimensions, direct installation normally. After fitting, bleed air from hydraulic circuit. If engine temperature remains high, check system pressure and motor rotation condition.

Q4: What pre-installation work helps extend service life?
A4: Clean hydraulic pipeline thoroughly, flush old contaminated oil. Replace filters and check oil cleanliness. Inspect fan pump, hoses and seals. After installation, run no-load test and monitor pressure and temperature before heavy load work.

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