- EN
| Parameter | Specification |
|---|---|
| COGENG Part Number | 5010575 |
| OEM Equivalent | Liebherr 5010575 |
| Product Type | 3/2-Way Hydraulic Solenoid Valve |
| Valve Configuration | 3-way, 2-position |
| Voltage | 24V DC (Liebherr standard) |
| Mounting Type | Direct fit, cartridge or subplate mounted |
| Application | Pilot control, attachment switching, implement control |
| Compatible Models | Wide range of Liebherr excavators and heavy equipment |
| Reference Number | Part Name | Description & Function |
|---|---|---|
| 1 | Solenoid Coil Assembly | 24V DC encapsulated coil that creates the electromagnetic field to shift the 3/2-way spool mechanism. |
| 2 | Coil Locking Nut | Secures the coil firmly to the valve body. Prevents vibration-related loosening in heavy equipment applications. |
| 3 | Valve Housing (Body) | High-strength steel body with three precision-machined ports (Pressure P, Working A, Tank T) for 3/2-way flow control. |
| 4 | 3/2-Way Control Spool | Hardened steel spool with two switching positions and three connection ports. Directs flow between P-to-A or A-to-T. |
| 5 | Return Spring | Robust return spring that automatically resets the spool to its normal/de-energized position for fail-safe operation. |
| 6 | Sealing Elements | Viton/Nitrile O-rings and static seals ensuring a completely leak-proof interface with zero external leakage. |
| 7 | Manual Override | Push-type mechanical override pin enabling manual actuation of the 3/2-way function without electrical power. |
| 8 | DIN Connector Port | Standardized DIN 43650 electrical connection port for secure, weather-resistant wiring harness integration. |
| Brand | Part Number |
|---|---|
| COGENG | 5010575 |
| Liebherr | 5010575 |
| Interchange | 5010576, 5010577, 5010578, 5010579 |
| Port Designation | Function |
|---|---|
| Port P (Pressure) | Inlet from hydraulic supply |
| Port A (Actuator) | Outlet to cylinder/actuator |
| Port T (Tank) | Return to reservoir |
| Position 1 (Normal/Off) | P blocked, A to T (actuator exhausts) |
| Position 2 (Energized/On) | P to A, T blocked (actuator pressurizes) |
| Parameter | Specification |
|---|---|
| Voltage Rating | 24V DC |
| Current Draw | 0.6 - 1.2 A @ 24V DC |
| Coil Resistance | 18 - 35 Ω @ 20°C |
| Duty Cycle | 100% continuous rating |
| Insulation Class | Class F (155°C) / Class H (180°C) |
| Protection Rating | IP65 / IP67 / IP69K |
| Electrical Connection | Deutsch DT type (2-pin) |
| Surge Protection | Built-in suppression diode |
| Power Consumption | Approx. 18-28 W |
| Parameter | Specification |
|---|---|
| Valve Type | 3-way, 2-position (3/2-way) |
| Maximum Operating Pressure | 350 bar (5,075 psi) |
| Pilot Pressure Range | 10 - 30 bar (145 - 435 psi) |
| Flow Capacity | Up to 30 L/min (8 GPM) - High flow design |
| Response Time (On) | ≤ 45 ms |
| Response Time (Off) | ≤ 35 ms |
| Leakage (Internal) | ≤ 3 drops/min @ rated pressure - Leak-proof design |
| Fluid Compatibility | Mineral oil, synthetic hydraulic fluids |
| Parameter | Specification |
|---|---|
| Valve Body Material | High-strength steel / zinc-nickel plated |
| Spool Material | Hardened alloy steel (58-62 HRC) |
| Seal Material | NBR / HNBR / FKM (Viton) |
| Spring Material | Stainless steel |
| Port Thread Size | Liebherr standard pilot line threads |
| Mounting Interface | Liebherr standard / ISO 4401 |
| Weight | 0.45 - 0.70 kg (1.0 - 1.5 lbs) |
| Dimensions (L×W×H) | 70 × 50 × 55 mm (approx.) |
| Parameter | Rating |
|---|---|
| Operating Temperature | -40°C to +90°C (-40°F to +194°F) |
| Storage Temperature | -40°C to +105°C (-40°F to +221°F) |
| Vibration Resistance | 15G @ 50-500Hz |
| Ingress Protection | IP67 / IP69K |
| Corrosion Protection | 500+ hours salt spray - Durable construction |
| Model | Series | Application |
|---|---|---|
| R914 | Compact Excavator | Pilot control, attachment switching |
| R916 | Medium Excavator | Pilot control, attachment switching |
| R920 | Medium Excavator | Pilot control, attachment switching |
| R924 | Medium Excavator | Pilot control, attachment switching |
| R926 | Medium Excavator | Pilot control, attachment switching |
| R930 | Large Excavator | Pilot control, attachment switching |
| R934 | Large Excavator | Pilot control, attachment switching |
| R936 | Large Excavator | Pilot control, attachment switching |
| R940 | Large Excavator | Pilot control, attachment switching |
| R944 | Large Excavator | Pilot control, attachment switching |
| R954 | Mining Excavator | Pilot control, attachment switching |
| R964 | Mining Excavator | Pilot control, attachment switching |
| R974 | Mining Excavator | Pilot control, attachment switching |
| R980 | Mining Excavator | Pilot control, attachment switching |
| R996 | Ultra-class Excavator | Pilot control, attachment switching |
| Model | Series | Application |
|---|---|---|
| L506 | Compact Loader | Pilot control, implement control |
| L508 | Compact Loader | Pilot control, implement control |
| L509 | Compact Loader | Pilot control, implement control |
| L514 | Medium Loader | Pilot control, implement control |
| L518 | Medium Loader | Pilot control, implement control |
| L524 | Large Loader | Pilot control, implement control |
| L526 | Large Loader | Pilot control, implement control |
| L530 | Large Loader | Pilot control, implement control |
| L538 | Large Loader | Pilot control, implement control |
| L542 | Large Loader | Pilot control, implement control |
| L546 | Large Loader | Pilot control, implement control |
| L550 | Large Loader | Pilot control, implement control |
| L556 | Large Loader | Pilot control, implement control |
| L566 | Large Loader | Pilot control, implement control |
| L576 | Large Loader | Pilot control, implement control |
| L578 | Large Loader | Pilot control, implement control |
| L580 | Large Loader | Pilot control, implement control |
| L586 | Large Loader | Pilot control, implement control |
| Model | Series | Application |
|---|---|---|
| PR734 | Crawler Dozer | Blade control, ripper control |
| PR736 | Crawler Dozer | Blade control, ripper control |
| PR744 | Crawler Dozer | Blade control, ripper control |
| PR746 | Crawler Dozer | Blade control, ripper control |
| PR754 | Crawler Dozer | Blade control, ripper control |
| PR756 | Crawler Dozer | Blade control, ripper control |
| PR764 | Crawler Dozer | Blade control, ripper control |
| PR766 | Crawler Dozer | Blade control, ripper control |
| PR776 | Crawler Dozer | Blade control, ripper control |
| Function | Description |
|---|---|
| Pilot Shut-Off (PSO) | Safety cut-off for hydraulic pilot controls |
| Attachment Switching | Selects between hydraulic attachments (breaker, shear, auger) |
| Proportional Control | Smooth speed control for implement functions |
| Travel Speed Change | Shifts between high/low travel speeds |
| Differential Lock | Engages diff lock on wheel loaders |
| Auxiliary Hydraulic Control | Controls additional hydraulic circuits |
| Implement Select | Selects between implement functions |
Note: Verify compatibility with your equipment model and serial number before ordering. Contact COGENG with your machine details for exact application verification.
Installation decomposition diagram
| Step | Action | Key Component | Specification / Torque Guideline |
|---|---|---|---|
| 1 | System Preparation | Entire Hydraulic & Electrical System | Shut down equipment, relieve all hydraulic pressure, and disconnect battery power for safety. |
| 2 | Disconnect Electrical Plug | DIN Connector (Item 8) | Loosen retaining screw and unplug the wiring harness connector from the old solenoid valve. |
| 3 | Remove Old Valve | Old 3/2-Way Valve Assembly | Use correct-size wrench on the valve body hex to unscrew and extract the old valve from the manifold. |
| 4 | Clean Mounting Surface | Manifold Port & Threads | Remove all old seal material and debris. Clean the mounting surface thoroughly to ensure a leak-proof installation. |
| 5 | Install New Seals | Seal Kit (Item 6) | Lubricate new O-rings with clean hydraulic oil and fit them onto the COGENG CG-5010575 valve body. |
| 6 | Mount New Valve | COGENG Valve (Item 1) | Thread valve into port by hand, then tighten valve body hex to 40–50 Nm torque. Verify P, A, and T port alignment. |
| 7 | Secure Coil & Route Cable | Coil (Item 1) & Nut (Item 2) | Rotate coil housing to optimal cable routing position, then tighten locking nut to 5–7 Nm. |
| 8 | Reconnect & Functional Test | Electrical & Hydraulic Systems | Reconnect DIN plug and battery. Start equipment and cycle the 3/2-way valve function to confirm correct, leak-proof operation. |
Frequently Asked Questions
| FAQ Topic | Question | Answer |
|---|---|---|
| Function Explained | What is a 3/2-way solenoid valve? | A 3/2-way valve has 3 ports (Pressure, Working, Tank) and 2 positions. In rest position, flow goes A→T. When energized, flow switches to P→A. It's commonly used for controlling single-acting cylinders or pilot circuits. |
| Equipment Compatibility | What Liebherr equipment does the 5010575 fit? | This valve is designed for Liebherr excavators and various heavy equipment applications. Please verify your machine's parts manual or old valve stamping to confirm the 5010575 cross-reference. |
| Leak-Proof Design | What makes this a "leak-proof" valve? | COGENG uses precision-machined hardened spools paired with high-quality Viton/Nitrile seals. This combination ensures zero external leakage and minimal internal bypass, even under high-pressure, high-flow conditions. |
| Direct OEM Replacement | Is installation truly plug-and-play? | Absolutely. The CG-5010575 is a direct form, fit, and function replacement for the OEM part. Installation requires only basic tools, fresh seals, and standard torque procedures — no modifications needed. |
| Durability & Flow | How does this valve handle high-flow, heavy-duty cycles? | The internal galleries are optimized for high flow with minimal pressure drop. The hardened steel spool and body resist wear during continuous, demanding industrial cycles. |
| Shipping & Stock | How fast can I receive my order? | We keep the CG-5010575 in stock and ready to ship. Orders are dispatched the same or next business day via express courier for fast global delivery (typically 3–7 business days). |
Contact COGENG
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