311-9541 Excavator Hydraulic Main Pump Assembly Replacement for CAT Excavator Spare Parts
311-9541 Hydraulic Main Pump
,CAT Excavator Replacement Pump Assembly
,311-9541 Spare Parts Main Pump
311-9541 Excavator Hydraulic Main Pump Assembly
The 311-9541 Hydraulic Main Pump is a high-capacity replacement pump assembly engineered for CAT excavators. This complete hydraulic pump unit delivers superior high-flow performance and consistent pressure output, manufactured to meet rigorous CAT OEM specifications for the most demanding mining, quarrying, and heavy construction applications.
Key Features
- Part number 311-9541 direct replacement for CAT excavator hydraulic main pump systems
- High-displacement 140 cc/rev pump design for maximum hydraulic power delivery
- Maximum operating pressure of 35 MPa for heavy-duty mining and excavation operations
- Rated flow up to 250 L/min for responsive multi-function implement control under full load
- SAE standard mounting flange for direct bolt-on installation with existing CAT hydraulic connections
- Clockwise rotation configuration matching CAT OEM pump orientation specifications
- Precision-machined internal components with hardened wear surfaces for extended service life in harsh conditions
- Factory hydraulic bench-tested, pressure-calibrated, and flow-verified under full load to ensure reliable out-of-the-box performance
- 12-month comprehensive warranty with global after-sales technical support network
Technical Specifications
| Part Number | 311-9541 |
| Pump Type | Hydraulic Main Pump |
| Application | CAT Excavator |
| Max Pressure | 35 MPa |
| Max Flow | 250 L/min |
| Pump Displacement | 140 cc/rev |
| Rotation | CW |
| Mounting Type | SAE Flange |
| Net Weight | 100 kg |
| Warranty | 12 Months |
Compatible Equipment
- CAT 330 Series Excavators
- CAT 336 Series Excavators
- CAT 340 Series Excavators
- Other CAT excavator models compatible with 311-9541 pump specification
Quality Assurance
Each 311-9541 Hydraulic Main Pump undergoes comprehensive quality inspection including hydraulic bench testing under full load conditions, pressure calibration verification, flow rate testing, and leak-down analysis before shipment. Manufactured under ISO 9001:2015 certified quality management systems to ensure consistent performance and extended durability across every unit delivered.

Calidad original/OEM/utilizada para piezas de repuesto de excavadoras
Fabrica de excavadoras Komatsu Maquinaria partes principales bomba hidráulica motor oscilante de viaje partes del motor para excavadoras
Venta al por mayor de excavadoras, cajas de engranajes de oscilación hidráulica, piezas y motores de oscilación para Hyundai Yanmar Komatsu Hitachi XCMG Liugong SANY Volvo