Caterpillar 576-3072 Pump Assembly for 390F 390F L 374F L Hydraulic Excavators | Main Hydraulic Pump
Genuine Cat® 576-3072 Main Hydraulic Pump Assembly for 390F, 390F L, and 374F L excavators. OEM replacement for optimal hydraulic performance, digging power, and reliability.
High-Performance Main Hydraulic Pump for Cat® Large Excavators
Genuine Caterpillar Pump Assembly (Part# 576-3072) is the heart of the hydraulic system in Cat® 390F, 390F L, and 374F L hydraulic excavators. This complete pump assembly ensures optimal hydraulic flow and pressure for superior digging power, lift capacity, and smooth multi-function operation in the most demanding mining and heavy construction applications.
Technical Specifications & Compatibility:
- ⚙️ OEM Part Number: 576-3072
- 🔧 Compatible Models:
- Cat 390F Hydraulic Excavator
- Cat 390F L Hydraulic Excavator
- Cat 374F L Hydraulic Excavator
- ⛓️ Pump Type:
- Variable displacement axial piston pump
- Dual or triple pump configuration (as per OEM design)
- 🛡️ Flow Capacity: Designed to meet high flow demands for boom, stick, and bucket circuits, as well as travel and swing functions.
- 📏 Pressure Rating: Built to operate at Cat’s specified high-pressure settings (exact rating proprietary to Caterpillar).
- 🧰 Construction: High-strength cast housing, hardened steel pistons and swash plate, precision bearings.
Key Features & Benefits:
✔️ Optimal Machine Performance: Delivers the precise hydraulic flow and pressure required for maximum productivity and fuel efficiency.
✔️ Durability & Reliability: Built to Caterpillar’s strictest quality standards to withstand extreme pressures and continuous operation.
✔️ Perfect Fit & Function: OEM guarantee of seamless compatibility with your excavator’s hydraulic system and control electronics (e.g., pump regulators).
✔️ Complete Assembly: Sold as a fully assembled unit, including housing, rotating group, and valves, simplifying installation and reducing downtime.
✔️ Preserves System Integrity: Using a genuine pump protects other expensive hydraulic components (cylinders, motors, valves) from damage caused by improper flow or contamination.
⚠️ Important Notice:
Replacing a main hydraulic pump is a major repair. For optimal results:
- System Flush: If the previous pump failed, it is highly recommended to flush the entire hydraulic system to remove contamination.
- Filter Replacement: Always replace all hydraulic filters (suction, return, and pressure) upon installation of a new pump.
- Check Pump Control: Ensure the pump regulators and electronic controls are functioning correctly to prevent premature failure of the new pump.
- Use Recommended Hydraulic Oil: Only use Cat HYDO Advanced Oil or an equivalent oil meeting Cat’s specification to ensure longevity and performance.
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