4328567 Hydraulic Main Pump for CAT M318D M320 M322D Wheel Excavator | GP Pump Replacement

Introducing the 4328567 Hydraulic Main Pump for CAT Wheel Excavators

The 4328567 Hydraulic Main Pump is a premium GP replacement component specifically engineered for CAT M318D, M320, and M322D wheel excavators. This high-performance hydraulic main pump delivers exceptional reliability, efficiency, and durability for your construction and excavation operations. Manufactured to meet stringent quality standards, it ensures optimal hydraulic system performance in the most demanding working conditions.

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Compatible Models and Applications
This hydraulic main pump is designed for perfect compatibility with CAT wheel excavator models including:

M318D Series:

• CAT M318D

• CAT M318D MH

• CAT M318D Material Handler

• CAT M318D Wheel Excavator

• CAT M318D Compact Excavator

M320 Series:

• CAT M320

• CAT M320 MH

• CAT M320 Material Handler

• CAT M320 Wheel Excavator

• CAT M320 D Series

• CAT M320 L Series

M322D Series:

• CAT M322D

• CAT M322D MH

• CAT M322D Material Handler

• CAT M322D Wheel Excavator

• CAT M322D Compact Excavator

This unit serves as a direct replacement for part numbers 4328567 and 432-8567, ensuring perfect fitment and performance compatibility with all specified CAT wheel excavator models.

Key Features and Benefits

• Premium Construction: Built with high-strength materials to withstand extreme excavation conditions

• Precision Engineering: Manufactured to exact CAT specifications for seamless hydraulic system integration

• Enhanced Efficiency: Optimized hydraulic flow design ensures maximum power output and fuel efficiency

• Superior Durability: Advanced sealing technology protects against contamination and wear

• Smooth Operation: Precision-balanced components minimize vibration and noise

• Corrosion Resistance: Multi-layer surface treatment protects against rust and environmental damage

• Easy Installation: Direct OEM replacement design reduces downtime and installation complexity

• Temperature Resilience: Designed to maintain performance in extreme temperature conditions

Technical Specifications

• Maximum Operating Pressure: 350 bar

• Flow Capacity: 180 L/min

• RPM Range: 800-2200

• Temperature Range: -40°C to +100°C

• Port Connections: SAE standard fittings

• Mounting Pattern: Direct bolt-on compatibility

• Weight: 38 kg

• Material: High-grade cast iron and steel

Why Choose Our 4328567 Hydraulic Main Pump?
Our hydraulic main pump undergoes rigorous quality testing and validation processes. Each unit is precision-engineered to deliver reliable performance that matches or exceeds OEM standards. The pump features:

• Comprehensive pressure testing to ensure leak-free operation

• Performance validation under simulated working conditions

• Quality materials selection for extended service life

• Compatibility testing with CAT hydraulic systems

• Quality certifications meeting international standards

Performance Advantages

• 15% improved efficiency over standard replacement pumps

• 30% reduction in noise levels compared to aftermarket alternatives

• Enhanced contamination resistance for longer service intervals

• Optimized for both standard and severe duty cycles

• Maintains stable hydraulic pressure across all operating conditions

Installation and Maintenance

• Direct replacement requiring no modifications

• Comprehensive installation guide included

• Standard maintenance intervals: 2,000 operating hours

• Recommended fluid: CAT hydraulic oil or equivalent

• Easy access to service points for routine maintenance

Frequently Asked Questions

1. Is this pump compatible with all M318D, M320, and M322D variants?
   Yes, it is designed to work with all standard and material handler versions of these models.

2. What’s the difference between 4328567 and 432-8567?
   These are alternative part numbers for the same genuine compatibility hydraulic pump.

3. How does this pump improve excavator performance?
   It ensures consistent hydraulic pressure delivery, which is critical for precise control, digging power, and overall machine efficiency.

4. What warranty coverage is provided?
   This pump comes with comprehensive warranty protection against manufacturing defects.

5. Are installation instructions included?
   Yes, detailed installation guidelines are provided with each unit.

Maintenance Recommendations

• Regular hydraulic fluid analysis every 500 hours

• System pressure checks during routine maintenance

• Filter replacement according to CAT recommendations

• Visual inspection for leaks every 250 operating hours

• Storage in clean, dry conditions when not installed

Conclusion
For CAT wheel excavator owners and maintenance professionals, the 4328567 Hydraulic Main Pump offers unmatched reliability, perfect compatibility, and exceptional value. This GP replacement unit ensures your equipment maintains optimal hydraulic performance, protecting your investment and maximizing productivity in demanding construction and excavation applications. With OEM-level quality and performance, this hydraulic main pump guarantees operational efficiency and reduced downtime.