CAT 5649803(564-9803) Hydraulic Piston Pump | Fits 336 395 548 558 MH3295
CAT 5649803(564-9803) Hydraulic Piston Pump | Fits 336 395 548 558 MH3295
In Stock & Ready for Global Express Dispatch
Request a Quick Quote✓ Premium CAT Quality Spec | ✓ 100% Direct Fit | ✓ Fast Global Shipping
High-pressure main axial piston hydraulic pump assembly engineered as a direct OEM-compatible replacement for Caterpillar 564-9803 (5649803 / 564 9803). Precision-manufactured to exact Caterpillar metallurgical and flow displacement standards, this heavy-duty variable displacement axial piston pump restores full hydraulic system power, smooth swashplate control, and peak working efficiency for Caterpillar heavy excavators, forestry equipment, and material handlers operating under demanding conditions.
Product Highlights
- Part Number: CAT 564-9803 / 5649803
- Direct Fit OEM Replacement: Mounting flange pattern, drive shaft spline count, regulator valve interface, and hydraulic port locations strictly align with original Caterpillar factory specifications for seamless drop-in installation.
- Heavy-Duty Piston Assembly: Built with high-strength alloy castings, precision-ground pistons, hardened swashplate assemblies, and heat-resistant viton seals engineered to handle extreme pressure spikes, continuous heavy duty cycles, and harsh environments.
- Optimal Hydraulic Performance: Delivers precise variable displacement and fast load-sensing response to power main boom lifting, stick digging, swing circuits, and heavy attachment hydraulics.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 564-9803 / 5649803 |
| Equipment Brand | Caterpillar (CAT) |
| Pump Type | Variable Displacement Axial Piston Hydraulic Pump |
| Application | Heavy Excavators & Forestry Equipment Main Hydraulic System |
| Warranty | 12 Months Warranty |
Compatible Models & Equipment
This premium replacement hydraulic axial piston pump is precision-engineered to fit the following Caterpillar heavy machinery platforms:
- Caterpillar Hydraulic Excavators: 336, 395, 3101
- Forestry Machinery & Log Loaders: 548, 558, FM548, FM558
- Material Handlers: MH3295
Key Applications
- Main Hydraulic Pump Replacement: Direct replacement for worn, noisy, or pressure-losing factory Caterpillar axial piston pumps during routine or major equipment overhaul.
- Digging & Swing Power Restoration: Eliminates internal oil bypass and overheating, fully restoring original digging forces, cycle speeds, and hydraulic valve response times.
- System Care & Reliability: Protects downstream main control valves, hydraulic cylinders, and motors from harmful metal wear debris.
Why Choose Our CAT Replacement Hydraulic Pumps?
- ISO Certified Production: Manufactured under strict ISO 9001 quality guidelines and 100% factory pressure, dynamic flow, and power-limiter tested prior to packaging.
- Cost-Effective Aftermarket Solution: Direct factory pricing offering OEM-level flow capacity and service life without high OEM dealer markups.
- Global Express Shipping: Fully stocked for fast international air dispatch to minimize costly equipment downtime on site.
- Dependable Warranty: Supported by a full 12-month quality warranty with dedicated technical support from heavy machinery hydraulic specialists.
Frequently Asked Questions (FAQ)
Q: Is this axial piston pump a direct replacement for CAT part number 564-9803?
A: Yes, this variable piston pump assembly is a 100% direct-fit replacement engineered to match original Caterpillar mounting specs, shaft configurations, and hydraulic flow for 564-9803 (5649803).
Q: Will this pump fit my CAT 336 excavator, 548/558 forestry machine, or MH3295 material handler?
A: Yes, it is fully compatible with CAT 336, 395, 3101 excavators, 548, 558, FM548, FM558 forestry processors, as well as MH3295 material handlers.
Q: What is covered under the 12-month warranty?
A: Our 12-month warranty covers material defects, housing failure, shaft shear, swashplate damage, and internal pressure loss under standard working conditions.
Q: How fast can this main hydraulic pump be delivered?
A: In-stock pumps are typically dispatched within 3–5 business days, with global air express options available for urgent machine-down situations.
Need a Quote for CAT 564-9803 Piston Pump?
Contact us today for factory-direct pricing, stock confirmation, and fast international delivery options.
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