CAT 593-3841 / 656-9431 Hydraulic Piston Pump
Product Overview
The CAT 593-3841 / 656-9431 Hydraulic Piston Pump is a genuine Caterpillar OEM hydraulic piston pump engineered to convert mechanical power into hydraulic energy by generating high-pressure hydraulic fluid flow for demanding machine applications. Designed for exceptional efficiency, durability, and precision, this pump supplies pressurized hydraulic fluid to cylinders, hydraulic motors, actuators, and other hydraulic components, ensuring reliable machine performance under severe operating conditions.
Manufactured to Caterpillar’s exact OEM specifications, the 593-3841 / 656-9431 Hydraulic Piston Pump features a robust ductile iron housing, precision-machined internal components, and a splined drive shaft for dependable power transmission. As a direct OEM replacement, it provides seamless integration with Cat hydraulic systems while maintaining factory performance, reliability, and productivity.
Key Features
- Genuine Caterpillar OEM Hydraulic Piston Pump
- Related Part Numbers:
- 593-3841
- 656-9431
- Converts mechanical energy into hydraulic power
- High-pressure hydraulic piston pump design
- Precision-machined internal components for efficient operation
- Splined drive shaft for reliable torque transmission
- High-strength ductile iron housing
- Delivers consistent hydraulic flow and pressure
- Designed for demanding construction and mining applications
- Factory-engineered for Cat hydraulic systems
- Direct OEM replacement for simplified installation
- Built for long service life and dependable performance
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 593-3841 / 656-9431 |
| Product Type | Hydraulic Piston Pump |
| Pump Type | Hydraulic Axial Piston Pump |
| Function | Converts mechanical power into hydraulic energy |
| Drive Type | Splined Shaft |
| Housing Material | Ductile (Spheroidal) Iron |
| Overall Length | 15.98 in (406 mm) (656-9431) |
| Overall Width | 11.02 in (280 mm) (656-9431) |
| Weight | 195 lb (88.47 kg) (656-9431) |
| Internal Thread | 5/8″-11 UNC-2B, M12 |
| Shaft Teeth | 13 |
| Installation | Direct OEM replacement |
| Brand | Caterpillar (CAT) |
Application Information
The CAT 593-3841 / 656-9431 Hydraulic Piston Pump is designed to generate and regulate hydraulic pressure within Caterpillar hydraulic systems. It draws hydraulic fluid into the pump chamber and pressurizes it through reciprocating piston movement driven by a rotating splined shaft.
The pump supports:
- Hydraulic cylinders
- Hydraulic motors
- Hydraulic actuators
- Boom, stick, and bucket hydraulic functions
- High-pressure hydraulic circuits
- Precision machine movement and control
Its rugged construction enables reliable operation in environments exposed to high pressures, heavy loads, vibration, dust, and extreme temperatures while maintaining consistent hydraulic performance.
Compatible Caterpillar Equipment
The CAT 593-3841 / 656-9431 Hydraulic Piston Pump is compatible with the following Caterpillar equipment:
Excavators
- 395
- 395 MH
- 3101 (Material Handler configuration)
Compatibility should always be verified using the machine Product Identification Number (PIN) or serial number before ordering, as hydraulic pump configurations may vary by machine arrangement.
Additional Compatibility Information
The 593-3841 / 656-9431 Hydraulic Piston Pump is a configuration-specific hydraulic component. Before installation, verify:
- Machine model
- Product Identification Number (PIN)
- Machine serial number
- Existing hydraulic pump part number
- Hydraulic system configuration
- Pump mounting arrangement
- Splined shaft specifications
- Hydraulic port configuration
- Required software or calibration requirements (if applicable)
Changes to the original machine configuration may affect compatibility. Confirmation through Caterpillar parts information or an authorized Cat dealer is recommended.
Benefits
Installing a genuine CAT 593-3841 / 656-9431 Hydraulic Piston Pump helps:
- Deliver reliable high-pressure hydraulic performance
- Maintain smooth and precise hydraulic operation
- Improve machine productivity and efficiency
- Reduce downtime caused by hydraulic pump failure
- Support accurate control of hydraulic functions
- Extend the service life of hydraulic system components
- Simplify maintenance with an OEM direct-fit replacement
- Ensure OEM-quality fit, durability, and long-lasting hydraulic performance
- Brand New / Genuine Surplus Caterpillar Part
- Professionally inspected before dispatch
- Ready for immediate shipment (subject to stock availability)
Worldwide Shipping
We maintain ready-to-ship inventory for many Caterpillar parts. Orders are dispatched the same business day upon receipt of bank payment, with fast worldwide delivery available via DHL and FedEx.
Disclaimer: We are an independent supplier of genuine surplus Caterpillar parts. We are not an authorized Caterpillar distributor or dealer. All trademarks, product names, and model numbers are used solely for identification purposes.
