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A Closer Look: Caterpillar 320C/D genuine products Main Pump Seal Kit 250-2503K Excavator Parts

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November 28, 2025
Category Connection: Hydraulic Pump Seal Kit
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Tags:
#349d CAT 320C pump repair kits #312c CAT 349D pump repair kits #312c 320 cat pump seal kit
Brief: Learn how this solution can streamline typical workflows and improve reliability. This video provides a detailed walkthrough of the Caterpillar 320C/D Main Pump Seal Kit 250-2503K, showcasing its specialized components and demonstrating how it withstands demanding hydraulic system conditions like high pressure, temperature, and oil corrosion.
Related Product Features:
  • Genuine replacement seal kit designed specifically for Caterpillar 320C/D excavator models.
  • Includes essential components: regulator O-ring, hose O-ring, main pump O-ring, and oil seal.
  • Constructed from high-quality HNBR, PU, and FKM materials for superior durability.
  • Specialized rubber formula ensures optimal performance in high-pressure and high-temperature environments.
  • Operates effectively within a wide temperature range from 55 to 150 degrees.
  • Backed by international certifications including CE and ISO standards.
  • Available with comprehensive after-sales online support for global distributors and repair shops.
  • Packaged securely in plastic bags inside elegant cardboard boxes for safe delivery.
Faqs:
  • Are you the authorized distributor of WYS seals in China?
    Yes, we are the officially authorized distributor of WYS seals in China, with 20 years of specialization in construction machinery sealing solutions.
  • What is the difference between WYS seals and other brands?
    WYS seals feature a specialized rubber formula that provides exceptional durability, with a failure rate more than 60% lower than ordinary brands, ensuring reliability in demanding conditions.
  • How to get samples from you?
    We support sample services; please contact our customer service team for detailed information on sample availability and ordering procedures.
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