Product Overview
The CAT 485-9751 is a solenoid-actuated directional control valve engineered for precise hydraulic circuit switching in Caterpillar heavy equipment and compatible industrial hydraulic systems. As a standard directional control valve, it utilizes an electrically energized solenoid to shift an internal spool, directing pressurized hydraulic fluid to the designated work port for cylinder extension, retraction, or motor rotation. This valve serves as a critical control element in mobile and stationary hydraulic power circuits, providing reliable flow routing, load holding capability, and rapid response to electronic control signals. Manufactured to Caterpillar OEM specifications, the 485-9751 ensures exact form, fit, and function for drop-in replacement in compatible machine platforms.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Solenoid Directional Control Valve |
| Model Designation | CAT 485-9751 |
| Operating Pressure | Standard Industrial Grade (Up to 350 bar rated) |
| Mounting & Connection | Standard ISO / Manufacturer Interface |
| Actuation Method | Electromagnetic Solenoid (12V / 24V DC options) |
| Spool Configuration | Closed-Center / Tandem / Float (application-dependent) |
| Flow Rating | Up to 80 L/min nominal (dependent on spool variant) |
| Seal Material | Nitrile (NBR) / Fluorocarbon (FKM) for high-temp service |
Engineering Features & Advantages
- Precision Spool Metering: Hardened, precision-ground spool and bore deliver accurate flow control, minimal internal leakage, and consistent directional response across the full operating pressure range.
- Fast Solenoid Response: High-force electromagnetic actuator ensures rapid spool shifting for responsive implement control and reduced cycle times in demanding work circuits.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, including high-cycle duty, vibration, and thermal stress typical of heavy equipment hydraulic systems.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring straightforward installation without modification to manifold or circuit plumbing.
- Contamination Tolerance: Robust internal clearances and hardened wear surfaces maintain reliable sealing and spool movement in real-world hydraulic fluid conditions.
Typical Industrial Applications
The CAT 485-9751 solenoid directional valve is commonly deployed in heavy equipment hydraulic systems including excavator boom, arm, and bucket control circuits; bulldozer and loader implement actuation; mining and construction machinery directional control manifolds; and stationary industrial hydraulic power units requiring reliable solenoid-operated flow routing. It is also suitable for metallurgical presses, marine deck machinery, and CNC machine tool hydraulic circuits where precise directional control and OEM-level durability are essential.
PRODUCT IMAGES


CAT 485-9751 Solenoid Directional Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine CAT 485-9751 Solenoid Directional Control Valve. This US-made hydraulic component features a spool-type design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.