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CASE 799137J4 Hydraulic Gear Pump for Backhoe Loaders | Fits 580 580T 690 695

CASE 799137J4 Hydraulic Gear Pump for Backhoe Loaders | Fits 580 580T 690 695

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Premium hydraulic gear pump designed as a direct OEM-compatible replacement for Case backhoe loaders, delivering steady flow and high operating pressure. Engineered to support heavy-duty digging, loading, and steering operations, ensuring excellent volumetric efficiency, durability, and smooth power transmission under harsh jobsite conditions.

Product Highlights

  • Part Number: 799137J4
  • Direct Fit OEM Replacement: Form, fit, and function perfectly match original Case / CNH Industrial engineering standards without requiring any mounting modifications.
  • Heavy-Duty Construction: Built with high-strength precision housing and wear-resistant gears to withstand continuous hydraulic pressure and high-load operations.
  • Optimized Hydraulic Performance: Precision gear design minimizes internal fluid bypass, providing quick response for front loader arms, rear backhoe boom, and steering systems.

Technical Specifications

Parameter Specification
Part Number 799137J4
Product Type Heavy-Duty Hydraulic Gear Pump (Tandem / Double Pump)
Brand Compatibility Case / CNH Industrial
Application Main Hydraulic Work System & Steering Circuit
Material High-Strength Precision Alloy & Heavy-Duty Cast Iron
Warranty 12 Months Warranty

Compatible Models & Equipment

This premium hydraulic gear pump is precision-engineered to fit the following Case backhoe loaders:

  • Case Backhoe Loaders: 580 / 580T / 690 / 695

Key Applications

  • Backhoe Loader System Hydraulics: Drives hydraulic power to front loader lifting, bucket control, rear digging boom, and steering circuits.
  • Construction & Excavation Work: Maintains steady pressure and rapid cycle times during heavy trenching, earthmoving, and material handling.
  • System Performance Restoration: Restores hydraulic speed, torque, and smoothness lost to worn original gear pumps.

Why Choose Our Aftermarket Case Pumps?

  • Guaranteed OEM Quality: Manufactured under ISO 9001 quality standards to match or exceed original Case performance and service life.
  • Cost-Effective Reliability: Premium dealer-level quality and precise fitment at a competitive price.
  • Ready to Ship: Maintained in stock for fast dispatch to minimize costly machine downtime.
  • Expert Support: Backed by a 1-year warranty and dedicated heavy machinery hydraulic specialists.

Frequently Asked Questions (FAQ)

Q: Is this gear pump a direct replacement for Case part number 799137J4?

A: Yes, this is a premium OEM-compatible aftermarket replacement pump manufactured to exact Case specifications for direct drop-in installation.

Q: What is covered under the 12-month warranty?

A: Our 12-month warranty covers all material flaws, manufacturing defects, and operational failures under standard working conditions.

Q: Do I need to flush the hydraulic system before installing the new pump?

A: Yes, we highly recommend flushing the hydraulic system and replacing the hydraulic oil filter before installation to protect the internal precision gears from contamination.

Q: How long does international shipping take?

A: In-stock orders are processed and dispatched within 3–5 business days. Express shipping options are available for urgent machine repair needs.


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