Product Overview
The Rexroth 4WRPH 6 C4 B40L-2X/G24Z4/M (Material Number: 0811404039) is a high-response, pilot-operated proportional directional valve from the Bosch Rexroth 4WRPH series. Designed for precise electro-hydraulic control of flow direction and magnitude, this valve utilizes a proportional solenoid with integrated position feedback to deliver fast, repeatable spool positioning. The “High-Response” designation indicates a specially optimized pilot stage and spool geometry that minimizes step response time, making it ideal for closed-loop position, velocity, and force control in demanding industrial and mobile hydraulic systems. The valve is a direct OEM-grade component, ensuring seamless integration into existing Rexroth-controlled circuits.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated, High-Response) |
| Model Designation | 4WRPH 6 C4 B40L-2X/G24Z4/M / 0811404039 |
| Nominal Size (NG) | 6 (NG6 / CETOP 3 / ISO 4401-03) |
| Spool Type / Configuration | C4 – Closed center, overlapping spool for precise position holding |
| Nominal Flow Rate | 40 L/min at Δp = 10 bar per land (B40L designation) |
| Operating Pressure | Up to 315 bar (system pressure, P/A/B ports); pilot pressure per 2X series |
| Actuation | Proportional solenoid, 24 V DC (G24), with integrated inductive position feedback |
| Electrical Interface | Z4 – Central connector, 4-pin (M12 or equivalent per Rexroth standard) |
| Mounting & Connection | Subplate mounting, ISO 4401-03-04-0-05 / CETOP 3 interface |
| Seal Material | NBR (standard); FKM available on request |
| Series | 2X (second generation, improved dynamics and service life) |
Engineering Features & Advantages
- Precision Performance: The integrated proportional solenoid, 24 V DC (G24), with integrated inductive position feedback ensures precise, repeatable control with low hysteresis and stable performance across the full working range.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- Direct Fit Replacement: Precision-manufactured to original Rexroth specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
The “High-Response” designation indicates a specially optimized pilot stage and spool geometry that minimizes step response time, making it ideal for closed-loop position, velocity, and force control in demanding industrial and mobile hydraulic systems.
PRODUCT IMAGES

Rexroth 4WRPH 6 C4 B40L-2X/G24Z4/M / 0811404039 High-Response Proportional 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 REXROTH 4WRPH 6 C4 B40L-2X/G24Z4/M / 0811404039 Solenoid Directional Valve. This Germany-made 24V DC hydraulic component features a high-performance spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.





