247-7867 296-6714 Hydraulic Piston Pump for Caterpillar 416E 422E 428E 434E

LIC Hydraulic presents the 247-7867 and 296-6714 high-performance axial piston pumps, specifically engineered for Caterpillar (CAT) E-Series Backhoe Loaders. As the primary hydraulic power source for digging and loading operations, these pumps utilize advanced Load Sensing (LS) technology to optimize power delivery. Our units offer 100% seamless interchangeability with original CAT components. Featuring reinforced rotating groups and precision-ground valve plates, these pumps are 100% load-tested to withstand the most demanding construction site environments.

Technical Specifications & Compatibility

• OEM Part Numbers: 247-7867, 296-6714, 219-3929

• Machine Models:

  • Caterpillar 416E, 416F

  • Caterpillar 422E

  • Caterpillar 428E

  • Caterpillar 434E

  • Caterpillar 442E, 444E

• Control Type: Load Sensing Pressure Compensated (LSPC)

• Construction: High-tensile cast iron housing with nitrided internals.

Key Advantages

• Efficiency on Demand: The integrated LS compensator ensures the pump only delivers the flow required by the actuators, reducing parasitic engine load and improving overall fuel economy.

• Superior Contamination Resistance: Precision-engineered pistons and cylinder blocks provide exceptional durability against micro-particles, maintaining high volumetric efficiency over time.

• Robust Bearing Design: Equipped with heavy-duty tapered roller bearings to handle high radial and axial loads common in backhoe digging cycles.

• Quiet Operation: Advanced swashplate damping and valve plate slot geometry minimize hydraulic ripple and noise levels ($<78$ dB).

Expert Maintenance Tips

• Filtration Management: Backhoe loaders work in dusty conditions. Replace hydraulic filters every 1000 hours and maintain a cleanliness level of ISO 18/16/13 to avoid premature wear.

• Prime Before Startup: Always fill the pump case with clean oil through the uppermost drain port before starting the engine. A “Dry Start” will cause catastrophic failure within seconds.

• Circuit Flushing: If the previous pump failed due to internal breakage, the entire hydraulic system must be flushed. Residual metal shavings will destroy the new pump’s precision surfaces instantly.