Excavator Repair Kit O-Ring Service Kit for Caterpillar CAT

A complete O-Ring kit designed for excavator hydraulic system maintenance and sealing needs. Each set includes a wide range of sizes and materials to suit various applications including oil, water, heat, chemical, and pressure environments.

MaterialNBR/ PTFE/ Acm/ Vmq/ FKM/ HNBR/ EPDM/ Silicone etc
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Kinton Parts is trusted by professionals worldwide for delivering high-quality parts for excavators, bulldozers, and other construction machinery—with guaranteed performance and durability.

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Description

KINTON’s O-ring kits for Caterpillar excavators are precision-engineered sealing solutions tailored to fit a wide range of CAT models. Each kit includes a complete assortment of O-rings in multiple sizes, neatly organized in a compartmentalized box for easy identification and quick replacement. These kits are essential for maintaining hydraulic integrity, preventing fluid leakage, and extending the lifespan of critical components.

Material and Performance

All O-rings in the kit are made from high-grade Nitrile (NBR), Viton (FKM), or Silicone materials, chosen for their exceptional durability and fluid resistance. These elastomers are specifically selected based on their compatibility with hydraulic oils, greases, and extreme working temperatures.

  • NBR (Nitrile): Excellent resistance to petroleum-based fluids and abrasion. Ideal for general use.
  • FKM (Viton): High chemical and heat resistance. Suitable for demanding applications.
  • Silicone: Best for extreme temperature flexibility.

The materials comply with international standards for industrial sealing applications and offer long-term resilience under pressure, temperature fluctuations, and repeated motion.

Kit Contents & Sizing

Each Caterpillar O-ring kit includes:

  • 200–400+ pieces depending on the kit variant
  • Sizes ranging from small precision seals to large diameter O-rings
  • Color-coded or labeled sections for easy selection
  • Comes in a durable plastic box with clear indexing chart

The kit is compatible with a wide range of Caterpillar part numbers and can serve multiple applications, such as:

  1. Hydraulic cylinders
  2. Pumps and motors
  3. Valve blocks
  4. Filter heads and hose fittings

Compatibility

These kits are designed for use with Caterpillar hydraulic systems and are widely compatible with:

  • Excavators: CAT E320, E325, E330, E336, etc.
  • Bulldozers, Loaders, Backhoes and other CAT construction equipment
  • OEM Part Reference (for cross-check): Please contact us if you need help matching an existing part number

Quality Control

Each batch of O-rings undergoes rigorous quality inspection for:

  • Dimensional accuracy
  • Material hardness (Shore A rating)
  • Thermal resistance
  • Compatibility with hydraulic fluids

We guarantee consistency and performance under demanding operating conditions.

Benefits

  • Prevents costly hydraulic oil leaks
  • Speeds up maintenance and repair time
  • Suitable for mobile and workshop use
  • Organized for fast identification and restocking
  • Cost-effective alternative to individual seal sourcing

Storage & Handling Tips

  • Store in a cool, dry place away from direct sunlight
  • Avoid contact with solvents or contaminants
  • Always refer to OEM specs when replacing seals

Need Customization?

We offer OEM service and custom kits with your logo, special sizes, or material combinations upon request. Contact us to discuss your specific sealing needs.

Shipping & Delivery

SHIPPING & DELIVERY

At Kinton Parts, we ensure reliable, worldwide shipping of parts for excavators, bulldozers, and a full range of construction machines—safe, fast, and secure.

All products are securely packed using high-quality export cartons, reinforced wooden cases, or industry-standard palletized packaging to ensure maximum protection during transit and smooth handling during unloading.

Standard orders are typically shipped within 3–5 working days, while large or customized orders are usually dispatched within 7–20 days, depending on volume and production requirements.

We offer flexible global shipping options, including:

  • International sea freight for cost-effective bulk transport
  • Air freight for urgent orders
  • Courier delivery (DHL, FedEx, UPS) for small-volume or sample shipments

Our logistics team manages every shipment carefully, providing real-time updates and tracking information until your order arrives safely at your destination.

Need assistance choosing the best shipping method for your location and timeline? Contact our team — we’ll help you plan a smooth delivery experience.

excavator parts loading truck 4
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excavator parts loading truck 1

FAQ

Q: What are your main products?
A: We supply a full range of undercarriage and wear parts for excavators, bulldozers, and other heavy equipment. Our product line includes: Track rollers, carrier rollers, front idlers, sprockets, segments, track shoes, track chains, bolt and nuts, pins and bushings, bucket teeth and adaptors, filters, seal kits, swing bearing, and hydraulic cylinder—plus other essential replacement parts.

Q: Which countries do you export to?
A: Kinton Parts exports to over 60 countries worldwide, including:
USA, Canada, UK, Germany, Russia, UAE, Indonesia, Malaysia, Thailand, India, Pakistan, Bangladesh, Sri Lanka, South Africa, Colombia, Peru, and many others.

Q: Can I order a sample?
A: Yes, we accept trial orders. For parts in stock, samples can be shipped quickly. If you have technical drawings or existing samples, we also support customized production and mold development.

Q: How can I track my order after shipping?
A: Once your order is shipped, we will provide you with all necessary tracking information based on the shipping method. For express deliveries, you’ll receive a tracking number to follow the shipment online. For air or sea freight, we’ll send you the relevant documents such as the airway bill (AWB) or bill of lading (B/L), along with the packing list and commercial invoice to help with tracking and customs clearance.

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Trusted by professionals worldwide, Kinton Parts supplies premium-quality components for excavators, bulldozers, and more—with reliable quality you can count on.

BULLDOZER UNDERCARRIAGE PARTS FOR INQUIRY NOW