CAT 4I1023 (4I-1023) Hydraulic Gear Pump for Caterpillar Excavators | Fits 320 312 315 317 318 311
CAT 4I1023 (4I-1023) Hydraulic Gear Pump for Caterpillar Excavators | Fits 320 312 315 317 318 311
In Stock & Ready for Global Express Dispatch
Request a Quick Quote✓ Premium Caterpillar Quality Spec | ✓ 100% Direct Fit | ✓ Fast Global Shipping
Premium hydraulic gear pump designed as a direct OEM-compatible replacement for Caterpillar (CAT) excavators, ensuring precise fluid flow, system pressure stability, and dependable power transmission. Engineered to deliver optimal volumetric efficiency, low noise performance, and exceptional service life in demanding construction and earthmoving applications.
Product Highlights
- Part Number: 4I1023 / 4I-1023
- Direct Fit OEM Replacement: Form, fit, mounting flange, and port configurations match original Caterpillar engineering specifications perfectly without requiring any modifications.
- Heavy-Duty Construction: Manufactured with high-strength cast iron body and precision-ground steel gears to withstand severe hydraulic pressures and continuous high-load operations.
- Optimized Hydraulic Efficiency: Precision internal tolerances minimize fluid bypass and heat generation, maintaining steady hydraulic response for smooth excavator control.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4I1023 / 4I-1023 |
| Product Type | Heavy-Duty Hydraulic Gear Pump |
| Brand Compatibility | Caterpillar (CAT) |
| Application | Pilot & Auxiliary Hydraulic System |
| Material | High-Strength Precision Cast Body & Alloy Steel Gears |
| Warranty | 12 Months Warranty |
Compatible Models & Equipment
This premium hydraulic gear pump is precision-engineered to fit the following Caterpillar excavators:
- 311 Series: Caterpillar 311-A / 311B
- 312 Series: Caterpillar 312-A / 312B / 312B L
- 315 Series: Caterpillar 315-A / 315-A L / 315B / 315B L / 315B FM L
- 317 Series: Caterpillar 317-A / 317-A N / 317 N / 317B L / 317B LN
- 318 Series: Caterpillar 318B / 318B N
- 320 Series: Caterpillar 320-A / 320-A L / 320 L
Key Applications
- Pilot & Auxiliary Hydraulic Power: Delivers continuous oil supply to excavator pilot control circuits, auxiliary lines, and steering/charging units.
- Hydraulic System Restoration: Eliminates slow joystick response, pressure drop, and sluggish attachment movement by restoring full hydraulic pressure.
- Severe Operation Reliability: Built to withstand harsh working environments in earthmoving, trenching, demolition, and forestry applications.
Why Choose Our Aftermarket CAT Hydraulic Gear Pumps?
- Guaranteed OEM Quality: Manufactured under strict ISO 9001 standards to meet or exceed original Caterpillar specifications for fit and operation.
- Cost-Effective Solution: Get maximum hydraulic efficiency and factory-grade performance at a fraction of the OEM dealer price.
- Ready to Ship: Fully stocked in our warehouse for fast global air freight delivery to get your machinery back to work quickly.
- Industry-Leading Support: Backed by a full 12-month replacement warranty and dedicated heavy equipment hydraulic specialists.
Frequently Asked Questions (FAQ)
Q: Is this gear pump a genuine Caterpillar part?
A: This is a premium-grade, OEM-compatible aftermarket replacement pump. It is built to exact Caterpillar dimensions and pressure ratings, serving as a direct drop-in replacement for part number 4I-1023 (4I1023).
Q: What is covered under the 12-month warranty?
A: Our 12-month warranty covers all manufacturing defects, structural material failures, and mechanical faults under standard hydraulic operating conditions.
Q: Should I flush the hydraulic system before installing this new pump?
A: Yes, we highly recommend flushing the hydraulic lines, replacing fluid filters, and filling the system with fresh hydraulic oil prior to startup to protect precision internal components.
Q: How long does international shipping take?
A: In-stock orders are processed and dispatched within 3–5 business days. Express shipping and international air freight options are available for urgent machine repair needs.
Need a Quote for CAT 4I1023?
Contact us today for the latest price, wholesale inquiries, and express global delivery options.
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