Introducing the 7081S04252 Hydraulic Main Pump for Komatsu PC30 Excavators

The 7081S04252 Hydraulic Main Pump is a premium GP replacement component specifically engineered for Komatsu PC30 series excavators. This high-performance hydraulic pump delivers exceptional power, reliability, and efficiency for your construction and excavation operations. Manufactured to meet Komatsu’s exacting standards, this main pump ensures optimal hydraulic system performance in various working conditions.

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Compatible Models and Applications
This hydraulic main pump is designed for perfect compatibility with Komatsu PC30 excavator models including:

PC30 Series:

• Komatsu PC30MR-2

• Komatsu PC30MR-2S

• Komatsu PC30UU-2 (Urban Utility)

• Komatsu PC30R-2

• Komatsu PC30R-2S

• Komatsu PC30MR-3

• Komatsu PC30MR-3S

• Komatsu PC30UU-3

• Komatsu PC30R-3

• Komatsu PC30R-3S

• Komatsu PC30MR-4

• Komatsu PC30MR-4S

• Komatsu PC30UU-4

• Komatsu PC30R-4

• Komatsu PC30R-4S

Additional Variants:

• Komatsu PC30 Compact Excavator

• Komatsu PC30 Mini Excavator

• Komatsu PC30 Material Handler

• Komatsu PC30 with Blade

• Komatsu PC30 Zero Tail Swing

• Komatsu PC30 with Hammer Attachment

• Komatsu PC30 with Auger

• Komatsu PC30 with Grapple

This unit serves as a direct replacement for part numbers 7081S04252 and 708-1S-04252, ensuring perfect fitment and performance compatibility with all PC30 series excavators.

Key Features and Benefits

• Premium Construction: Built with high-quality materials to withstand demanding excavation conditions

• Precision Engineering: Manufactured to exact Komatsu specifications for seamless integration

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

• 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 labor costs

• Compact Design: Perfect fit for mini excavator applications without modification

• Temperature Resilience: Consistent performance in extreme temperature conditions (-20°C to 80°C)

Technical Specifications

• Part Number: 7081S04252

• Alternative Part Number: 708-1S-04252

• Type: Hydraulic Main Pump (Gear Pump)

• Maximum Operating Pressure: 28 MPa (280 bar)

• Flow Capacity: 45 L/min at 2000 RPM

• RPM Range: 1500-2200

• Port Connections: SAE 3000 psi standard fittings

• Mounting Pattern: Direct bolt-on compatibility

• Weight: 12.5 kg

• Material: High-grade aluminum alloy and steel components

• Fluid Compatibility: Mineral-based hydraulic oils ISO VG 46

• Rotation: Clockwise (as viewed from shaft end)

Performance Advantages

• 18% improved efficiency over standard replacement pumps

• 22% reduction in noise levels during operation

• Enhanced contamination resistance with built-in filtration protection

• Optimized for compact excavator applications and tight spaces

• Stable hydraulic pressure maintenance across all operating conditions

• Reduced heat generation for longer fluid life

• Quick response time for precise control operations

Installation and Maintenance

• Direct replacement requiring no modifications or adapters

• Comprehensive installation guide with torque specifications included

• Recommended service intervals: 1,500 operating hours

• Compatible with Komatsu original hydraulic fluids and equivalents

• Easy access to service points for routine maintenance and inspection

• Standard maintenance tools required for installation

• Standard break-in procedure: 50 hours of moderate operation

Why Choose Our 7081S04252 Hydraulic Main Pump?

• Perfect Compatibility: Exact OEM replacement ensures no fitment issues with all PC30 variants

• Quality Assurance: Rigorous testing under simulated working conditions including:

  • Pressure testing up to 35 MPa

  • Endurance testing exceeding 2,000 hours

  • Performance validation across temperature extremes

  • Vibration and shock resistance testing

• Durability: Premium materials and construction for extended service life (8,000+ hours)

• Warranty Protection: Comprehensive 12-month warranty against defects

• Performance Guarantee: Matches or exceeds original equipment performance specifications

• Global Availability: Supported by worldwide shipping and local inventory

Frequently Asked Questions

1. Is this pump compatible with all PC30 variants including older models?
   Yes, it is designed for all PC30 series models from MR-2 through MR-4 generations, including urban utility and zero tail swing versions.

2. What’s the difference between 7081S04252 and 708-1S-04252?
   These are alternative part numbers for the same genuine Komatsu component, with identical specifications and performance.

3. How does this pump improve excavator performance compared to aftermarket options?
   It ensures consistent hydraulic pressure delivery for precise control, smoother operation, and better fuel efficiency while maintaining OEM reliability.

4. What warranty coverage is provided with this pump?
   Comprehensive 12-month warranty covering manufacturing defects and performance issues.

5. Are installation instructions and technical specifications included?
   Yes, detailed installation guidelines with torque specifications and technical data are provided with each unit.

Maintenance Recommendations

• Regular hydraulic fluid analysis every 500 operating hours

• System pressure checks during routine maintenance intervals

• Filter replacement according to manufacturer specifications (every 500 hours)

• Visual inspection for leaks and wear during daily equipment checks

• Proper storage in clean, dry conditions when not in use

• Use of recommended hydraulic fluids for optimal performance

• Periodic inspection of mounting bolts and connections

Conclusion
For Komatsu PC30 excavator owners and maintenance professionals, the 7081S04252 Hydraulic Main Pump offers unmatched reliability, performance, and value. This GP replacement unit ensures your equipment maintains optimal hydraulic performance, protecting your investment and maximizing productivity in various construction applications. With OEM-level quality, perfect compatibility, and comprehensive warranty coverage, this hydraulic main pump is the ideal choice for keeping your Komatsu PC30 excavator operating at peak performance while minimizing downtime and maintenance costs.