Original Parker M5BF 2N03 B1M3 Hydraulic Motor
2 week ago
Product details
Genuine Parker Fan Motor for XCMG 900D, Model M5BF-2N03-B1M3
1. Basic Product Overview
This is an original genuine Parker fixed-displacement bent-axis hydraulic fan motor, factory OEM matched for XCMG 900D large wheel loader cooling fan drive system. Belonging to Parker M5BF series high-performance hydraulic orbital/piston fan motor lineup, it is specially developed for construction machinery radiator fan driving, featuring compact structure, high torque output, stable speed regulation and strong dustproof & shock resistance. It directly drives the cooling fan to control water tank, hydraulic oil radiator intercooling, ensures the whole machine hydraulic system and engine maintain normal working temperature under heavy-load continuous operation, widely used on XCMG large loaders, mining loaders and heavy-duty engineering vehicles as standard fan drive component.
2. Model Code Breakdown (M5BF-2N03-B1M3)
- M5BF: Core series — Parker heavy-duty hydraulic fan dedicated motor, high pressure resistance, low leakage design for cooling systems
- 2: Displacement code (fixed displacement customized for XCMG 900D fan matching)
- N: Mounting form: standard SAE flange mounting, integrated keyed output shaft
- 03: Port configuration & internal valve assembly code (built-in pressure relief logic matched to XCMG original hydraulic circuit)
- B1: Seal group grade: standard HNBR hydraulic oil seals, suitable for ISO VG46/VG68 anti-wear hydraulic oil
- M3: Rotation direction + internal bearing reinforced version, clockwise rotation, heavy-duty roller bearing upgrade
3. Main Technical Parameters
Item Specification
Brand & Origin Genuine Parker (USA/EU OEM production)
Applicable Machine XCMG 900D Wheel Loader
Model M5BF-2N03-B1M3
Type Fixed Displacement Hydraulic Fan Motor
Rated Working Pressure 21MPa
Peak Intermittent Pressure 28MPa
Rated Speed Range 50–2800 rpm
Max Output Torque Custom matched torque for XCMG 900D cooling fan
Hydraulic Fluid ISO VG46 / VG68 anti-wear hydraulic oil
Working Temperature -20℃ ~ +95℃
Mounting SAE standard flange mount
Output Shaft Keyed solid shaft (original OEM size)
Feature Built-in bypass/relief valve integrated, no extra valve block required
4. Working Principle
Hydraulic oil output from the machine’s fan hydraulic pump enters the inlet port of the Parker M5BF motor, pushes internal piston/rotor assembly to generate rotary mechanical torque, drives the cooling fan rigidly connected on the output shaft to rotate.
Combined with the machine’s temperature sensor and proportional valve, the system adjusts oil supply flow and pressure to realize stepless fan speed regulation: high speed under high temperature for forced heat dissipation, low speed under low temperature to save power consumption. Internal integrated pressure protection valve prevents overload stalling or motor burnout caused by fan jamming.
5. Core Advantages (Genuine Parker OEM Version)
1. Original Parker precision machining internal components, minimal internal leakage, long continuous service life under dusty high-vibration loader working conditions
2. Precisely calibrated displacement and torque perfectly matching XCMG 900D original hydraulic design, plug-and-play without circuit modification
3. Integrated overload protection valve inside, effectively protects motor and front fan blade from impact damage by foreign matter stuck
4. High-temperature resistant sealing system, stable performance in summer high-temperature construction and alpine cold start environments
5. Full interchangeable with old failed original part, same installation dimensions, shaft size and oil port position
6. Application Scenario
Exclusive OEM fan drive motor for XCMG 900D 9-ton large wheel loader, responsible for driving the entire cooling package (engine water radiator, hydraulic oil radiator, air conditioner condenser, intercooler assembly). Also compatible with some modified heavy mining loaders adopting Parker M5BF series fan configuration.
7. Common Fault & Replacement Instruction
Replace the whole genuine Parker motor assembly if presenting: fan no rotation / weak rotation speed, abnormal rattling noise, severe oil leakage from shaft seal/flange surface, internal seizure.
Cannot disassemble internal valve components privately; must use genuine Parker replacement to avoid mismatched pressure parameters leading to overheating of XCMG 900D whole machine.
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Ningbo Hengnuo Hydraulic Drive Co.,Ltd
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4 year
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hydraulic valve ,
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