CAT 1140602 (114-0602) Piston Pump for Excavator | Fits 320-A 320 L 320N
CAT 1140602 (114-0602) Piston Pump for Excavator | Fits 320-A 320 L 320N
In Stock & Ready for Global Express Dispatch
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Premium hydraulic piston pump designed as a direct OEM-compatible replacement for Caterpillar (CAT) 320 series excavators, ensuring precise power distribution and high-pressure performance. Built to deliver superior volumetric efficiency, rapid hydraulic response, and an extended operating lifespan in demanding earthmoving, mining, and heavy excavation projects.
Product Highlights
- Part Number: 1140602 / 114-0602
- Direct Fit OEM Replacement: Form, fit, and port configurations match original Caterpillar engineering specifications precisely for seamless drop-in installation without modifications.
- Heavy-Duty Construction: Manufactured with high-strength alloy housings, hardened swashplates, and precision-ground internal pistons to withstand continuous high hydraulic pressure and harsh job site environments.
- Optimized Efficiency: Advanced valve plate and piston group design minimizes friction and oil leakage, maximizing overall hydraulic horsepower and optimizing machine fuel efficiency.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 1140602 / 114-0602 |
| Product Type | Heavy-Duty Main Hydraulic Piston Pump |
| Brand Compatibility | Caterpillar (CAT) |
| Application | Main Hydraulic Drive System (Boom, Bucket, Arm & Travel Functions) |
| Material | High-Strength Precision Alloy & Ductile Iron Castings |
| Warranty | 12 Months Warranty |
Compatible Models & Equipment
This premium hydraulic main pump is precision-engineered to fit the following Caterpillar 320 excavator models:
- Caterpillar 320-A / 320-A L / 320-A S / 320-A N
- Caterpillar 320 L / 320N
Key Applications
- Excavator Main Hydraulic System: Delivers essential high-pressure hydraulic fluid flow to power boom, stick, bucket movements, and travel motors.
- Heavy Duty Construction & Earthmoving: Engineered for continuous duty in heavy trenching, rock digging, demolition, and quarry operations.
- Hydraulic System Restoration: Eliminates slow hydraulic response, arm drift, high oil temperatures, and loss of breakout force caused by worn OEM pumps.
Why Choose Our Aftermarket CAT Pumps?
- Guaranteed OEM Quality: Manufactured under ISO 9001 quality management standards to match or exceed OEM specifications for fit and service life.
- Cost-Effective Solution: Get true dealer-level performance and durability at a fraction of the original equipment price.
- Ready to Ship: Fully stocked in our warehouse for quick worldwide dispatch to minimize costly excavator downtime on site.
- Industry-Leading Support: Backed by a 1-year warranty and supported by our technical team specializing in heavy machinery hydraulics.
Frequently Asked Questions (FAQ)
Q: Is this hydraulic piston pump a genuine Caterpillar part?
A: This is a premium aftermarket replacement hydraulic pump manufactured to exact CAT technical and physical specifications, providing a direct drop-in replacement for part number 114-0602.
Q: What is covered under the 12-month warranty?
A: Our 12-month warranty covers all material defects, manufacturing flaws, and performance failures under normal operating conditions.
Q: What steps should be taken before installing this pump?
A: We strongly recommend flushing the hydraulic tank and lines, replacing all hydraulic filters, and pre-filling the pump housing with fresh hydraulic oil prior to initial startup to avoid air cavitation or dry friction.
Q: How fast can this part be delivered?
A: In-stock items are usually dispatched within 3–5 business days. We provide express international air freight options for emergency repair situations.
Need a Quote for CAT 1140602?
Contact us today for current pricing, volume discounts, and expedited delivery options.
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