Vickers VTM42 Hydraulic Vane Pump | VTM42 Power Steering Pump Replacement

Genlu Hydraulic proudly introduces our VTM42 Series high-performance hydraulic power steering vane pumps. This series is engineered to be a seamless, high-value replacement for the classic Vickers (Eaton) VTM42 series power steering pumps, widely utilized in heavy trucks, construction vehicles, and specialized mobile machinery. Known for their compact footprint, low noise profile, high volumetric efficiency, and stable oil supply across wide RPM ranges, the VTM42 is the heartbeat of responsive and reliable steering systems. Genlu guarantees 100% Drop-in Interchangeability in mounting flanges, drive shaft profiles, and port configurations compared to the original Vickers units. Each VTM42 pump undergoes rigorous 100% simulation performance testing to ensure optimal steering assistance without shuddering under high-load conditions.

Technical Specifications 

• Product Series: Vickers VTM42 Series Power Steering Hydraulic Pump

• Configuration Models: VTM42-50-40-08-NO-R-1-14, VTM42-40-25-10-F11-R1-14

• Rated Displacement: Available in various displacements (25cc, 40cc, 50cc, etc.)

• Rated Operating Pressure: 10 MPa – 14 MPa

• Max Operating Speed: 4000 rpm

• Steering Features: Integrated flow control valve and pressure relief device

• Mounting Interface: SAE Standard Flange

• Drive Shaft: Standard keyed or splined shaft (per specific model code)

Key Technical Advantages:

• Integrated Flow Control Technology: Features an internal precision flow control valve that automatically regulates output based on engine RPM. This ensures maximum assistance at low speeds and stabilized steering feel at high cruising speeds.

• Noise-Optimized Performance: Precision-ground vane/rotor components optimize fluid suction/discharge paths, significantly reducing the characteristic high-pitched whine and vibration often found in lower-quality steering pumps.

• High-Reliability Sealing System: Equipped with high-temperature Viton seals designed to handle the thermal cycling common in automotive steering circuits, ensuring leak-free performance in extreme climates.

• Shock Load Resilience: Vane components are hardened via precise heat treatment, allowing the pump to absorb instantaneous pressure spikes from steering linkages operating over rough, uneven terrain.

Application Areas:

• Heavy Transportation: Hydraulic power steering systems for heavy trucks, buses, and commercial transport vehicles.

• Construction & Municipal Machinery: Steering power sources for compact loaders, street sweepers, and utility equipment.

• Mobile Hydraulic Units: Compact hydraulic circuits where space is limited and acoustic comfort is mission-critical.

Expert Maintenance Tips:

• Flush the Entire System: Before installing a new pump, completely flush the power steering system to remove degraded oil and metallic debris. Existing contaminants in the system will cause rapid premature wear of the precision vane chambers.

• Cold-Start Air Bleeding: Post-installation, lift the vehicle’s front wheels. Cycle the steering from lock-to-lock manually while the engine is off to bleed air from the hydraulic circuit; this prevents cavitation damage and noise upon initial start-up.

• Regular Filter Maintenance: The lifespan of the VTM42 pump is directly tied to fluid cleanliness. Sync your steering fluid filter replacements with your vehicle’s scheduled maintenance intervals to ensure long-term reliability.