194-8384 / 283-5992 Hydraulic Fan Pump for Caterpillar 330C excavator

product parameters

Part No：194-8384 / 283-5992
Product Type：Hydraulic Fan Gear Pump
Applicable Machine：Caterpillar 330C, 330CL, 330C FM, 330C MH Excavator
Pump Structure：External gear pump, fixed displacement
Displacement：32 cc/rev
Main Material：High-strength cast iron pump housing, alloy steel gear pair, copper alloy sliding bearing, fluororubber sealing components
Rated Working Pressure：220 bar
Max Instantaneous Peak Pressure：250 bar
Recommended Operating Hydraulic Oil：AW32 / AW46 anti-wear hydraulic oil
Allowable Oil Viscosity Range：10 ~ 500 mm²/s
Overall Dimension：225mm ×162mm ×148mm
Net Weight：Approx.13.2kg
Interface Specification：Standard hydraulic oil port, inlet port Φ24mm, outlet port Φ18mm
Accessories：Comes with complete matching sealing kits (O-rings, backup rings)
Testing Standard：100% full-load bench flow, pressure and internal leakage calibration test
Packaging：Independent anti-rust packaging + neutral export carton
Storage Requirements：Dry indoor storage environment, relative humidity ≤75%, avoid moisture, dust, corrosive gas and direct sunlight. Long-term storage needs periodic anti-rust inspection.

• **Stable hydraulic output, reliable temperature control for heavy-duty working conditions**
Consistent hydraulic flow is maintained under sudden load fluctuations. Even under long continuous heavy loads in dusty, high-temperature construction sites, the pump delivers steady power to the cooling fan, keeping engine temperature within the safe working window. It effectively eliminates the risk of engine overheating, cylinder scuffing and power derating caused by insufficient cooling during heavy-duty excavation, hauling and climbing operations.
• **Precise flow regulation, lower energy consumption**
Hydraulic flow matches cooling demand dynamically. When the engine is cold or operating under light load, the fan consumes less power, reducing parasitic power loss of the main hydraulic system. Less heat buildup inside the hydraulic circuit helps cut fuel consumption, reduce overall machine running costs and improve fuel economy for long-hour jobs.
• **Premium wear-resistant core components, strong anti-pollution capacity**
The gear pair and sliding bearings are made of high-alloy steel and copper alloy with ultra-precision grinding treatment. The surface hardness and wear resistance are greatly improved. It can tolerate fine solid particles mixed in hydraulic oil, slowing down abrasive wear of internal parts. This reduces the risk of premature pump failure caused by contaminated oil and greatly extends service life, minimizing unexpected downtime of excavators.
• **Full bench testing for every unit, excellent performance consistency**
Each finished pump undergoes strict full-load bench testing of flow, pressure curve and internal leakage before shipment. Strict machining tolerance control ensures uniform performance across batches. Individual performance deviation is kept minimal. It is ideal for bulk maintenance and fleet overhaul, avoiding inconsistent cooling effect from different replacement pumps.

FAQ 

Q1: What equipment is the 194-8384 / 283-5992 fan pump suitable for?
A1: It fits Caterpillar 330C excavator cooling hydraulic system, also compatible with 330CL, 330C FM, 330C MH. It is fully interchangeable with part number 1948384 and 2835992. Please confirm machine model before installation to avoid mismatch, wrong model may lead to poor cooling performance.

Q2: What failures can this fan pump solve?
A2: It can effectively repair common cooling system faults: engine overheating, fan rotating slowly, fan no rotation, pump abnormal knocking noise, high hydraulic oil temperature. These symptoms are usually caused by aging, gear wear or internal leakage of original fan pump.

Q3: Can support bulk wholesale and customized packaging?
A3: Support factory direct bulk wholesale, sufficient stock. Custom LOGO packaging and exclusive neutral packaging available for large orders, fast shipment, suitable for foreign trade, repair shops and equipment supporting business. We can offer competitive prices for bulk orders.

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