Excavator O-Ring Kit for Hitachi

This O-ring kit is designed specifically for Hitachi excavators, offering a comprehensive selection of durable seals to ensure leak-free performance in hydraulic systems. Each kit includes multiple sizes to meet routine maintenance and emergency repair needs across various Hitachi models.

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

O-rings are essential for maintaining tight hydraulic seals within excavator systems. This kit provides a wide range of O-ring sizes to:

  • Seal hydraulic fittings, couplings, pumps, cylinders, and valves
  • Prevent fluid leakage and system pressure loss
  • Support efficient repair and maintenance on-site
  • Extend the lifespan of hydraulic components

Whether you’re replacing a single ring or rebuilding multiple connections, this assortment ensures you're always equipped.

High-Performance Material & Resistance

The O-rings in this kit are made from premium-grade Nitrile Rubber (NBR) or Fluorocarbon (Viton) depending on your selection:

🔹 Nitrile Rubber (NBR/Buna-N)
Temp Range: -30°C to 125°C
Features: Excellent oil resistance, affordable, ideal for general use in oil/water systems.

🔹 Fluororubber (FKM/FPM)
Temp Range: -20°C to 250°C
Features: Outstanding chemical, fuel, and high-temperature resistance.

🔹 Silicone (VMQ)
Temp Range: -60°C to 225°C
Features: FDA & RoHS compliant, great for heat and food-grade environments.

🔹 EPDM (Ethylene Propylene Diene Rubber)
Temp Range: -50°C to 150°C
Features: Excellent ozone, steam, and weather resistance, ideal for outdoor systems.

🔹 Neoprene (CR)
Temp Range: -44°C to 120°C
Features: High mechanical strength and fatigue resistance.

🔹 FFKM/FFPM (Perfluoroelastomer) (optional or available by request)
Temp Range: -42°C to 327°C
Features: Premium sealing for extreme chemicals and temperatures; long service life.

Complete Kit Contents

This Hitachi O-Ring Box typically includes:

  • 200–500 pcs (varies by kit type)
  • Variety of sizes covering most Hitachi hydraulic systems
  • Clear size labeling on each compartment
  • Durable plastic case with seal-resistant compartments
  • Optional OEM or custom configuration available

Note: Contents may vary depending on the kit model. Contact us for exact part list.

Model Compatibility

Suitable for use with a wide range of Hitachi excavators, including but not limited to:

  • EX60 / EX120 / EX200 / EX300 / EX400
  • ZX70 / ZX120 / ZX200 / ZX330 / ZX450
  • ZAXIS series and more

These kits are ideal for on-site maintenance crews and service workshops handling multiple models.

Application Scenarios

These O-ring kits are used during:

  • Hydraulic line repairs and hose replacements
  • Cylinder rebuilds and valve servicing
  • General excavator overhaul and preventative maintenance
  • Emergency fixes in field conditions

Built for construction, mining, demolition, and utility equipment operators.

Maintenance Tips

  • Store kits in a cool, dry environment to maintain elasticity
  • Always clean sealing surfaces before replacing O-rings
  • Replace O-rings when showing signs of flattening, hardening, or cracking
  • Avoid reusing old or expanded seals to prevent leakage

Why Choose Our Hitachi O-Ring Kit?

  • Tailored for Hitachi models
  • Premium sealing materials (NBR/Viton)
  • Easy-to-carry and organized storage box
  • Compatible with most hydraulic applications
  • Supports efficient field service and emergency repairs

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.

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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