350-7075 hydraulic fan motor For Caterpillar 966,972,980K and 980M wheel loaders

350-7075 hydraulic fan motor For Caterpillar 966,972,980K and 980M wheel loaders Featured Image
  • 350-7075 hydraulic fan motor For Caterpillar 966,972,980K and 980M wheel loaders

Short Description:

369-6595 variable axial plunger pump is heavy-duty aftermarket hydraulic replacement for Caterpillar 986H and 986K large wheel loader with C15 engine.

Product Detail

Product Tags

description

350-7075 hydraulic fan motor is the key executive component of cooling hydraulic circuit for CAT 966,972,980K,980M wheel loaders. Driven by variable hydraulic flow from fan pump, it converts hydraulic pressure into rotary torque to drive cooling fan. The motor adjusts rotating speed in real time according to system temperature signal. It accelerates fan rotation under heavy load to boost heat dissipation, and reduces speed under light load to cut power consumption and fuel waste. Core internal piston, cylinder block, valve plate and sliding shoes are made of high-strength alloy steel, processed by precision grinding and nitriding hardening. The friction pair maintains stable performance under long continuous rotation and frequent speed variation. The cast iron housing undergoes stress relief annealing to eliminate residual stress, resisting impact and vibration from dusty construction and mining environment.

product parameters

Part No：350-7075
Product Type：Hydraulic Piston Fan Motor
Applicable Equipment：CAT 966, CAT972, CAT980K, CAT980M Wheel Loader
Control Mode：Hydraulic Variable Speed Control
Nominal Working Pressure：21 MPa (210 bar)
Max Instantaneous Peak Pressure：25 MPa (250 bar)
Working Medium：ISO VG46 Anti-wear Hydraulic Oil
Working Temperature Range：-25℃ ~ +110℃
Main Material：Cast iron housing, high-strength alloy steel core parts, FKM fluorine rubber seal
Surface Treatment：Precision grinding, nitriding hardening, stress relief annealing, anti-rust coating
Shaft Specification：Original standard splined shaft
Interchangeability：1:1 OEM original interchangeable, direct installation without modification
Packaging：Independent anti-rust packaging + export standard wooden case
Storage Environment：Dry indoor storage, moisture-proof, impact-proof, anti-corrosive gas

advantage

- Nitrided alloy steel friction pair, stable performance under frequent speed adjustment
Piston, cylinder block and valve plate adopt deep nitrided alloy steel. It maintains stable volumetric efficiency with repeated speed changes, cuts internal leakage and extends service life under cyclic loading.
- Temperature-responsive variable speed design, intelligent cooling and power saving
Motor speed automatically follows hydraulic flow signal related to oil temperature. It only consumes necessary power when cooling demand rises, reducing unnecessary power loss and lowering overall fuel consumption.
- Heavy cast iron housing, strong dust and vibration resistance for mining sites
Thick cast iron housing with stress relief treatment. It withstands continuous vibration, dust and temperature cycling in quarry environment, preventing housing deformation and cracking.
- High-grade FKM sealing assembly, reliable sealing under wide temperature range
Premium FKM seals resist high temperature and hydraulic oil aging. Stable sealing minimizes external oil seepage and internal leakage, keeping cooling hydraulic pressure stable.
- Full bench inspection before delivery, consistent performance and low failure rate
Each fan motor undergoes torque, rotating speed response and pressure retention testing. Strict QC ensures performance meets OEM cooling system specifications.

FAQ 

Q1: Which loader models does 350-7075 fan motor fit?
A1: This hydraulic fan motor is compatible with CAT 966, 972, 980K and 980M wheel loaders. It cannot be used for 980G/980H or other series. Confirm machine serial number before purchase.

Q2: Can I reuse the original fan blade after replacing this fan motor?
A2: Yes, if the fan blade is intact and well-balanced. You must inspect blade crack, deformation and dynamic balance before assembly. Damaged or unbalanced blade will shorten motor life.

Q3: What signs indicate this fan motor is faulty?
A3: Typical symptoms: fan cannot accelerate when temperature rises, radiator remains cold, hydraulic oil or engine coolant overheats, abnormal rattling noise from fan compartment, oil leakage on motor shaft or housing.

Q4: What hydraulic circuit checks should be completed before installing new fan motor?
A4: Inspect matched fan pump, pressure relief valve and filter element. Clean pipeline and remove metal debris. Check whether pressure setting of cooling circuit meets factory requirement.

Q5: Why does the new fan motor still overheat after installation?
A5: The problem may not come from motor itself. Check fan pump output flow, blocked radiator, clogged oil filter or air trapped in cooling hydraulic circuit. Air bleeding is mandatory 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.

our warehouse

our warehouse

Pack and ship

Pack and ship


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