Caterpillar excavator 3443942 hydraulic pump Rexroth A11VLO190 hydraulic piston pump

High-Efficiency Power for Caterpillar Excavators: The 3443942 Hydraulic Pump Based on the A11VLO190 Pump Platform

Modern Caterpillar excavators depend on stable, high-pressure hydraulic performance to handle heavy digging, lifting, and continuous-duty earthmoving operations. At the core of this performance is the 3443942 hydraulic pump, a precision-engineered variable displacement unit built on the proven A11VLO190 pump design. This pump functions as a primary transmission component inside the Caterpillar hydraulic system, ensuring accurate flow control, pressure stability, and efficient energy conversion across every working cycle.

The A11VLO190 pump structure provides exceptional mechanical strength through advanced cylinder-block metallurgy, high-precision swashplate geometry, and reinforced pistons designed for long-term durability. This allows the 3443942 hydraulic pump to maintain performance even under the severe shock loads typical of deep trenching, rock excavation, and high-impact demolition operations seen across Caterpillar machine lines documented at www.cat.com.

Engineered for Extreme Conditions in Agriculture, Construction, Engineering & Mining Machinery

While the pump is primarily used in Caterpillar excavators, its technical characteristics make it equally suitable for a wide range of machinery:

Agricultural Machinery
Large tractors, silage harvesters, and hydraulic sprayers rely on stable displacement pumps for multi-function control. The A11VLO190 pump delivers smooth flow modulation during continuous work cycles such as plowing or lifting heavy implements.

Construction Machinery
Wheel loaders, drilling rigs, and bulldozers often face shock loads, rapid duty-cycle changes, and extreme outdoor temperatures. The 3443942 hydraulic pump provides consistent hydraulic performance, even in dusty urban job sites or high-temperature construction zones.

Engineering Machinery
Foundation equipment, pipe-laying systems and mobile cranes require pumps with precise pressure responsiveness and overload protection. The variable-displacement design ensures efficient energy use and stability during complex motion control.

Mining Machinery
Mining excavators and underground loaders operate in abrasive, humid, and high-vibration environments. The pump’s explosion-resistant housing, high-pressure endurance, and thermal shock resistance allow it to function reliably where many standard pumps fail.

Durability, Protection & One-Year Warranty

Our factory produces the 3443942 hydraulic pump with enhanced sealing technology, anti-explosion casing, and high-pressure tolerance, giving it exceptional survivability in harsh working conditions. Every unit includes a one-year warranty and undergoes rigorous bench testing before shipment. Full technical data and downloadable PDF specifications are available at www.baolilai-pump.com/contact_us/, with product overviews at www.baolilai-pump.com.

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FAQ

1. What makes the A11VLO190 pump design suitable for Caterpillar excavators?

It offers precise variable-displacement control, high structural rigidity, and excellent pressure stability under continuous heavy-load excavation.

2. Can the 3443942 hydraulic pump be used in non-Caterpillar machines?

Yes, as long as the hydraulic system requirements match the displacement and pressure range. Many agricultural, construction, and mining machines use compatible configurations.

3. How does this pump perform in extreme environments?

It features anti-explosion housing, wear-resistant pistons, and reinforced sealing, enabling reliable operation in heat, dust, vibration, and high-load environments.

4. Where can I get technical drawings or flow curves?

All downloadable PDFs are available at www.baolilai-pump.com/contact_us/.