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The WG9412471050 hydraulic pump is a genuine SINOTRUK HOWO component engineered to deliver high‑pressure oil flow for power steering, tipping mechanisms, and other chassis hydraulic systems. As a critical element of the trusted Sinotruk howo parts family, this pump ensures precise control and reliable actuation under the extreme loads of mining, construction, and long‑haul operations. Manufactured from high‑strength cast iron with hardened gears, the WG9412471050 unit maintains tight clearances to generate consistent flow and pressure, even at low engine speeds. Its robust construction withstands continuous duty cycles, contamination, and thermal stress. Investing in this authentic component guarantees responsive steering, efficient dump body operation, and long‑term durability of your Howo chassis hydraulics.
Hydraulic Pump
Гидравлический насос
Bomba hidráulica
The WG9412471050 hydraulic pump features a precision‑machined cast iron housing and case‑hardened steel gears that maintain exact meshing tolerances for high volumetric efficiency. Its gear profile is optimized for low pulsation and quiet operation, while the integrated pressure relief valve protects the system from over‑pressure spikes. The pump is designed for continuous operation at pressures up to 18 MPa, delivering flow rates sufficient for power steering, dump trailers, and auxiliary hydraulic functions. All wetted parts are coated with a rust‑inhibiting finish to withstand harsh environments.
Each WG9412471050 pump undergoes rigorous testing, including pressure and flow validation on a hydraulic test stand. The housing is pressure‑tested to ensure no porosity, and the gears are inspected for surface finish and hardness. The pump is then assembled with high‑quality shaft seals and bearings, and each unit is performance‑verified to meet OEM specifications. This meticulous quality control guarantees reliable operation in demanding applications such as mining dump trucks and heavy‑haul tractor‑trailers.
The table below provides detailed technical data for the genuine SINOTRUK HOWO WG9412471050 hydraulic pump. These specifications are essential for verifying compatibility and understanding its performance capabilities.
| Parameter | Specification | Details |
|---|---|---|
| OEM Part Number | WG9412471050 | SINOTRUK HOWO Original Code |
| Product Name | Hydraulic Pump (Gear Type) | For chassis hydraulic systems |
| Displacement | 16 cm³/rev | Optimized for power steering & dump |
| Rated Pressure | 18 MPa (180 bar) | Continuous duty |
| Maximum Pressure | 21 MPa (210 bar) | Intermittent |
| Rated Speed | 2000 rpm | Max continuous |
| Flow Rate (at rated speed) | 32 L/min | Theoretical |
| Housing Material | High‑strength cast iron (GG25) | Corrosion resistant |
| Gear Material | 20MnCr5, case‑hardened | 58‑62 HRC |
| Shaft Type | SAE B 13T spline | Common for Howo PTO drives |
| Mounting Flange | SAE A 2‑bolt | Standard |
| Port Threads | Inlet: 1¼-12 UNF / Outlet: 1-12 UNF | O‑ring boss |
| Operating Temperature | -30°C to +90°C | Hydraulic oil dependent |
| Applicable Models | Howo T7H, A7, Howo‑7 with hydraulic systems | Verify PTO compatibility |
The WG9412471050 hydraulic pump is a direct OEM replacement for the power steering pump and auxiliary hydraulic pump used on Howo heavy‑duty trucks. It supplies pressurized oil to the steering gear, ensuring effortless maneuverability even at low speeds. In dump truck configurations, this pump powers the hydraulic hoist cylinder, enabling rapid and controlled tipping of the body. It is also used in applications with hydraulic retarders, winches, and other PTO‑driven equipment.
In the chassis context, the pump is typically driven by the engine via a PTO (power take‑off) and is mounted directly to the transmission or engine gear train. Its reliable flow and pressure are essential for maintaining steering response and safe operation of hydraulic implements. A worn or failed pump can result in heavy steering, slow dump cycles, or complete loss of hydraulic function. Using the genuine WG9412471050 ensures that your Howo truck maintains its original performance and safety standards.
When replacing the hydraulic pump, always inspect the PTO drive gear and coupling for wear. Use new O‑rings and gaskets. Prime the pump with clean hydraulic oil before installation to prevent dry running damage.
Correct installation of the WG9412471050 pump is critical to ensure proper hydraulic system function and long service life. Follow these steps:
Disconnect the hydraulic lines and cap them to prevent contamination. Remove the old pump. Clean the mounting surface thoroughly. Inspect the PTO drive splines for wear; replace if damaged.
Prime the new pump by filling the inlet port with clean hydraulic oil and rotating the shaft by hand. Install the pump with a new gasket or O‑ring. Torque mounting bolts to the specification in the service manual (typically 70‑90 Nm).
Reconnect the hydraulic lines. Fill the reservoir with recommended oil. Start the engine and let it idle, turning the steering wheel lock‑to‑lock to bleed air. Check for leaks and proper operation.
A failing hydraulic pump can compromise steering and auxiliary functions. Common signs that replacement is needed include:
If any of these symptoms are observed, immediate replacement with a genuine WG9412471050 pump is recommended. Continuing to operate with a worn pump can lead to complete system failure and unsafe vehicle operation.
Precision‑ground gears and calibrated relief valve ensure consistent flow and pressure, maintaining responsive steering and efficient implement operation.
Case‑hardened gears and durable cast iron housing resist wear and corrosion, reducing maintenance intervals and total cost of ownership.
Manufactured to original specifications, the pump bolts on without modification, saving installation time and ensuring correct alignment with the PTO drive.
To maximize the service life of your WG9412471050 hydraulic pump, follow these best practices:
By adhering to these guidelines, you ensure that the WG9412471050 pump performs optimally throughout its intended service interval.
Aftermarket hydraulic pumps often use lower‑grade materials, inaccurate gear profiles, and substandard seals, leading to premature failure, noise, and reduced efficiency. The genuine WG9412471050 is manufactured to the exact specifications of the original equipment, using premium cast iron and case‑hardened steel gears. Each pump is tested for flow, pressure, and leakage, guaranteeing that it will perform exactly as the original part.
By choosing authentic SINOTRUK HOWO parts, you protect your investment and ensure your truck maintains its reliability and resale value. The Sinotruk howo parts catalog includes a full range of chassis and engine components engineered for maximum durability. For fleet managers and owner‑operators who demand the best, the genuine WG9412471050 is the only responsible choice.
The WG9412471050 hydraulic pump is used across a wide range of Howo models: T7H, A7, and classic Howo‑7 series equipped with power steering and hydraulic dump systems. It fits trucks with SAE B spline PTO drives and SAE A 2‑bolt mounting flanges. Always verify the PTO model and hydraulic system pressure requirements before ordering.
Each WG9412471050 is individually packaged in a heavy‑duty cardboard box with foam inserts to prevent damage during shipping. The package includes the pump, a new shaft seal protector, and installation instructions. For bulk orders, pumps are supplied in sealed cartons with batch traceability.
Production of the WG9412471050 takes place in IATF 16949 certified facilities, using CNC machining and in‑process gauging. Statistical process control ensures that dimensional variations are kept to a minimum. Every batch is accompanied by a material certificate and hydraulic performance test report, guaranteeing that the pumps delivered are identical to those fitted on new Howo trucks at the factory.
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