Replacement Multi-Section Gear Pump for CAT 6E-6405
Product Overview
This replacement multi-section gear pump is fully interchangeable with Caterpillar OEM part number 6E-6405. It is a fixed-displacement tandem multi-section hydraulic gear pump, specially developed as an aftermarket alternative for CAT wheel loaders and integrated tool carriers.
Adopting coaxial integrated multi-section structure, one drive shaft simultaneously drives multiple gear assemblies. Independent pressure and flow output can be supplied to separate hydraulic circuits. Strictly duplicated original installation dimensions, shaft spline, port layout and overall outline, enabling direct drop-in replacement without modification to equipment.
Compatible Equipment: CAT 910F Wheel Loader, IT12F, IT14F Integrated Toolcarrier (3114 engine configuration).
Key Technical Specifications
- OEM Reference Part No.: 6E-6405
- Type: Multi-section external gear pump, fixed displacement
- Structure: Coaxial tandem multi-section design
- Rotation Direction: Matches original CAT specification
- Max continuous working pressure: 210 bar
- Rated speed range: 600 ~ 2400 rpm
- Medium: Standard anti-wear hydraulic oil
- Working fluid temperature: -20℃ ~ +85℃
- Recommended oil cleanliness: NAS 9 or above
- Shaft: Original matching spline input shaft
- Mounting interface, oil port position: 1:1 consistent with OEM 6E-6405
Working Principle
Power drives the input shaft to rotate. Multiple groups of meshing gear pairs operate synchronously inside the pump housing. The gear tooth cavities suck hydraulic oil from the common inlet, and deliver pressurized oil through independent outlets to different hydraulic loops.
Multiple pump sections work independently, providing separate oil supply for working circuit, steering circuit and pilot control circuit, simplifying overall hydraulic system layout of construction machinery.
Core Advantages
1. 100% interchangeable with CAT 6E-6405, direct installation, no machining or piping adjustment required
2. High-precision cast pump housing and wear-resistant alloy gear components, low internal leakage and stable volumetric efficiency
3. Optimized bearing and sealing assembly, outstanding durability under heavy-duty cyclic working conditions
4. Low vibration and moderate noise, stable pressure output with small flow pulsation
5. Cost-effective aftermarket alternative, greatly reduce maintenance and parts replacement cost compared with original OEM pump
6. Strict offline pressure & performance testing before delivery, consistent performance matching original specifications
7. Robust structure, good contamination resistance, suitable for harsh construction site working environments
Typical Applications
- CAT 910F Wheel Loader
- CAT IT12F Integrated Tool Carrier
- CAT IT14F Integrated Tool Carrier
- Other matching construction machinery equipped with 6E-6405 hydraulic multi-section gear pump
