247-8968 Fan Pump for Caterpillar 374D excavator

product parameters

Part No：247-8968
Type：Hydraulic Axial Piston Variable Fan Pump
Applicable Equipment：CAT374D Excavator / Construction Machinery Cooling System
Peak Instantaneous Pressure：34MPa
Displacement：40cc/r
Rated Flow：65–85 L/min
Maximum Output Speed：2650 rpm
Rated Output Torque：115 N·m
Start Torque：≥122 N·m
Working Temperature：-20℃ ~ +120℃
Hydraulic Oil Viscosity Range：16~100 mm²/s
Filtration Precision Requirement：≤10μm
Feature：Variable displacement proportional control, stable output, low internal leakage, high temperature resistance, low vibration, quick response
Internal Structure：Precision nine-piston axial piston structure, high-precision valve plate pairing
Sealing Grade：High-temperature resistant fluororubber full sealing, zero leakage standard
Protection Grade：IP54 dustproof and waterproof
Material：High-strength wear-resistant alloy steel (pump housing), bearing steel (piston & shaft)
Package：Independent anti-rust packing + Standard export carton
Storage suggestion：Keep dry, avoid moisture, rust and collision, indoor constant temperature storage

• High strength forged pump housing. Made of premium wear-resistant alloy material, subjected to multiple heat treatment processes including quenching and tempering. Strong compression and deformation resistance, excellent fatigue resistance under cyclic pressure impact. Not easy to leak oil under long-time high pressure and high temperature, guarantees stable continuous hydraulic output even under intermittent heavy load cycles.
• Precise variable proportional control. Matches original machine hydraulic control logic perfectly. Output flow changes dynamically following coolant water temperature and hydraulic oil temperature. Real-time automatic adjustment avoids unnecessary power consumption when cooling demand is low, effectively reduces idle power loss and saves fuel consumption. Fast response of proportional valve ensures timely fan speed adjustment.
• Strong adaptability to harsh working conditions. Optimized internal oil passage design with smooth flow path and low flow turbulence. High precision matched internal components and upgraded sealing assembly. Adapt to high temperature, heavy load, dusty, muddy construction sites. Effectively reduce premature wear, scratching and early failure caused by contaminated hydraulic oil.
• Strict multi-stage inspection before shipment. Each pump is tested for torque, flow stability, pressure impact test and static sealing. Running state monitored throughout testing process. Smooth rotation, low noise and low pulsation, consistent batch performance. Unqualified products will be eliminated strictly before packing.

FAQ 

Q1: Which machine does 247-8968 fan pump fit? Can it replace other part numbers?
A1: It is specially designed for CAT374D excavator cooling system. Not universal for other CAT models. Mismatched parts may cause slow fan response, poor heat dissipation, engine high temperature and hydraulic component wear. Please carefully verify machine model and OEM part number before purchase.

Q2: What tests are performed before shipment?
A2: Every fan pump is 100% tested on professional hydraulic bench. Tests include pressure resistance, flow stability, proportional response, high-temp sealing and internal leakage inspection. Simulated heavy-load working conditions to guarantee stable and consistent performance after installation.

Q3: What is your warranty, and what is excluded?
A3: 12-month warranty under correct installation, proper hydraulic oil and normal operation. Warranty excludes damage from contaminated oil, metal impurities, wrong installation, unauthorized disassembly, overload operation and poor routine maintenance.

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