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Identifying the Correct Part Number for a Caterpillar 320B Excavator with Serial Number 5MS00221
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Introduction
Accurately identifying the correct part number for specific components of heavy machinery, such as the Caterpillar 320B excavator, is crucial for effective maintenance and repair. The serial number of the machine plays a vital role in determining the exact specifications and compatible parts. In this case, the serial number 5MS00221 corresponds to a Caterpillar 320B model, which was part of Caterpillar's medium-sized hydraulic excavator lineup produced during the 1990s and early 2000s.
Understanding the Importance of Serial Numbers
Caterpillar assigns unique serial numbers to each piece of equipment, which are essential for identifying the machine's specific configuration, manufacturing details, and compatible parts. For the 320B series, serial numbers starting from 5MS00001 are used, indicating that 5MS00221 falls within this range. This specificity ensures that maintenance and replacement parts are tailored to the exact requirements of the machine, enhancing performance and longevity.
Common Components and Their Part Numbers
Several components of the Caterpillar 320B excavator have well-documented part numbers. For instance, the bucket cylinder seal kit for the 320B, 320B L, 320B LN, 320B N, and 320B S models with serial numbers 5MS00001 and up includes:
  • Cylinder Numbers: 1232044
  • Rod Diameter: 90 mm
  • Bore Diameter: 130 mm
  • Seal Kit Type: Type 1
This seal kit is designed to rebuild or repair the bucket cylinder, ensuring proper sealing and functionality. It's important to note that while this part is compatible with serial numbers starting from 5MS00001, it's always advisable to verify compatibility with the specific machine in question.
Utilizing Caterpillar's Parts Lookup Tools
To accurately identify part numbers for specific components, Caterpillar provides online resources such as the  and the . By entering the machine's serial number, users can access detailed parts diagrams and manuals, facilitating the identification of the correct parts for maintenance and repair tasks.
Conclusion
Determining the correct part number for a Caterpillar 320B excavator with serial number 5MS00221 involves understanding the machine's specific configuration and utilizing resources like Caterpillar's parts lookup tools. By ensuring the use of accurate part numbers, operators and technicians can maintain the machine's performance and extend its operational lifespan.
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Identifying the Correct Part Number for a Caterpillar 320B Excavator with Serial Number 5MS00221 - by MikePhua - 08-23-2025, 08:58 PM

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