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272-6955 Main Hydraulic Pump for CAT 320D 323D Excavator - C6.4 Engine Power

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  2. 272-6955 Main Hydraulic Pump for CAT 320D 323D Excavator - C6.4 Engine Power
272-6955 Main Hydraulic Pump for CAT 320D 323D Excavator - C6.4 Engine Power
272-6955 Main Hydraulic Pump for CAT 320D 323D Excavator - C6.4 Engine Power
272-6955 Main Hydraulic Pump for CAT 320D 323D Excavator - C6.4 Engine Power

High-efficiency 272-6955 main hydraulic pump for CAT 320D, 320D L, and 323D excavators. Durable twin-piston design optimized for C6.4 engines. Reliable performance under high-pressure conditions.

  • Part Number： 272-6955
  • Product Name： Main Hydraulic Pump
  • Applicable Model： CAT 320D, 321D, 323D
  • Brand： For Caterpillar
  • Condition： Aftermarket New / Remanufactured / Genuine
  • Cross Reference： 2726955, 320D Main Pump, 272-6955XD
  • MOQ： 1 Unit
  • Warranty： 6 Months
Technical Specifications 272‑6955 ‑ Main Hydraulic Pump for CAT 320D/323D

272‑6955 Main Hydraulic Pump — Axial Piston Assembly

The 272‑6955 Main Hydraulic Pump is the core power unit of the hydraulic system for Caterpillar 320D series excavators. Designed for high‑flow performance and extreme‑pressure durability, this double variable‑displacement axial piston pump delivers precise multi‑function operation and powerful digging capacity under harsh construction‑site conditions.

1. Technical Specifications

Technical ParameterSpecification Details
Part Number272‑6955 (2726955)
Pump TypeDouble Variable‑Displacement Axial Piston Pump
ApplicationMain Hydraulic Drive System
Matching EngineCaterpillar C6.4 / C6.4 ACERT Diesel Engine
Main MaterialHeavy‑Duty Cast Iron Housing with Precision‑Machined Internal Rotating Group
Working PressureNominal 350 bar High‑Pressure Output

2. Machine Compatibility

This main hydraulic pump is fully compatible with the following Caterpillar excavator models:

  • Standard Excavators: 320D, 320D L, 320D GC, 320D LN, 323D, 323D L, 323D LN

  • Special‑Purpose Models: 320D FM Forestry Machine, 320D RR, 321D LCR

3. Key Features & Advantages

  • Precise Hydraulic Response: Calibrated to match original CAT control‑valve parameters, providing smooth, synchronized multi‑action operation and comfortable operator control feedback.

  • High Energy Efficiency: Variable‑displacement structure automatically adjusts flow output according to working load, reducing engine power consumption and lowering fuel usage.

  • Long‑Service‑Life Internal Components: Hardened pistons, valve plates and friction pairs minimize internal leakage, maintaining stable volumetric efficiency for long‑term operation.

  • Direct OEM‑Standard Replacement: Exact dimensional match to original parts for quick bolt‑on installation, greatly shortening machine downtime during maintenance.

Professional Installation & Maintenance Note
To extend the service life of the 272‑6955 hydraulic pump, a complete hydraulic‑system flushing and full filter replacement are required before installation. Clean hydraulic oil is essential to protect precision‑machined internal components from wear and damage.

For bulk wholesale, customized solutions and technical support:

Xuzhou Sinoswift Import & Export Co., Ltd.
Contact: +86 13701956981
Email: [email protected]

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