161-8919 hydraulic fan motor For CAT 966H wheel loader

product parameters

Part No：161-8919
Type：Axial Piston Hydraulic Fan Motor
Displacement：38 cc/rev
Applicable Equipment：CAT 966H Wheel Loader, compatible with 966G,972H,980F,825G
Control Mode：Hydraulic pressure proportional control
Material：High-strength cast iron housing, alloy steel piston & cylinder block, copper alloy valve plate, roller bearing, FKM fluorine rubber sealing rings
Surface Treatment：Precision machining, surface hardening, anti-corrosion coating
Drive Method：Hydraulic oil drive
Feature：OEM replacement fan motor, high starting torque, low internal leakage, stable rotation, direct drop-in fit, matched with supporting fan pump for cooling system
Working Temperature：-25℃ ~ +120℃
Package：Independent anti-rust packing + Standard export wooden case
Storage suggestion：Keep dry, avoid moisture, rust and collision, indoor constant temperature storage, stay away from corrosive gas

・161-8919 axial piston hydraulic fan motor, OEM replacement, perfectly matched with supporting fan pump for CAT966H wheel loader cooling system
161-8919 hydraulic fan motor is custom fitted for CAT966H wheel loader cooling circuit. It converts hydraulic pressure into rotary torque to drive cooling fan. Stable torque output ensures fan can adjust speed flexibly under continuous heavy loading and stockpiling operation, preventing engine overheating.
・Precision hardened piston and cylinder block assembly, stable torque output and low flow pulsation
Alloy steel piston and cylinder block adopts precision grinding and surface hardening process. It maintains steady torque output under variable inlet pressure. Volumetric efficiency stays high to guarantee consistent fan rotation for cooling circuit.
・High-rigidity cast iron housing with stress relief treatment, excellent anti-vibration and pressure impact resistance
Cast iron housing after stress relief annealing eliminates internal residual stress. It can resist continuous vibration and cyclic pressure impact on quarry and stockyard sites. The housing is not easy to deform, slowing down wear of internal piston, valve plate and bearing components and extending service life.
・Strong anti-overload performance, fast speed response to protect radiator and engine assembly
This fan motor features strong overload tolerance and rapid response to pressure changes. It provides stable rotary power for cooling fan. It maintains cooling hydraulic system operating normally, preventing radiator overheating caused by insufficient fan torque or speed attenuation, ideal replacement for overhaul and daily maintenance of CAT966H wheel loader.

FAQ 

Q1: What CAT wheel loader models does 161-8919 fan motor fit?
A1: Mainly for CAT966H wheel loader, also interchangeable for CAT966G,972H,980F,825G. Verify part number before ordering.

Q2: What is the main working feature of this loader fan motor?
A2: It adjusts fan speed automatically according to engine temperature. When loading heavy materials, fan speed rises to enhance heat dissipation and protect engine under heavy load.

Q3: What symptoms show that the fan motor has internal wear?
A3: When loading heavy materials, fan speed drops obviously, engine temperature rises, and there is visible oil leakage at the seal position.

Q4: What should be prepared before installing this fan motor?
A4: Clean the hydraulic oil tank and pipeline thoroughly, replace hydraulic filter element. Check the fan blade for deformation before assembly.

Q5: What maintenance suggestions for wheel loader fan motor in quarry working environment?
A5: Shorten oil and filter replacement cycle. Inspect oil contamination regularly, avoid dust entering hydraulic circuit and scratching internal friction parts.

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