Hydraulic Cylinder Seal Kits Compatible with Hyundai Excavator
High-performance hydraulic seal kits for Hyundai excavators, engineered for boom, arm, and bucket cylinders. Designed to restore optimal sealing efficiency and prolong cylinder life under demanding job site conditions.
| Material | NBR/ PTFE/ ACM/ VMQ/ FKM/ HNBR/ EPDM/ Silicone and etc |
|---|---|
| Working Temperature | -40–120℃(according to the material) |
| Pressure | Up to 690bar(10000psi) |
| Hardness | 90-95 Shore A |
| Color | Black/Orange/Brown/White/Brown |
| MOQ | 12 Pieces |
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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.
Our Hyundai hydraulic cylinder seal kits are precision-engineered to maintain optimal pressure retention and prevent fluid leakage in your excavator’s boom, arm, or bucket cylinder. Manufactured from high-quality materials including NBR, PU, PTFE, and reinforced nylon, each component is designed to endure high loads, abrasive conditions, and fluctuating temperatures commonly found in heavy-duty earthmoving operations.
Whether you're conducting routine maintenance or performing a complete cylinder rebuild, these seal kits provide an effective solution to restore your machine’s hydraulic integrity.
Compatible Models & Part Numbers
We supply seal kits compatible with a wide range of Hyundai excavator models and cylinder types. Below are common reference part numbers and applicable models:
| Part Numbers | |||||||
|---|---|---|---|---|---|---|---|
| R300LC-9 Arm cylinder seal kit | R210-7 Arm cylinder seal kit | ||||||
| 31NB-40550 | 31Y104032 | 31Y1-06561 | 31Y1-06731 | 31Y106841 | 31Y107751 | 31v1-09410 | 31Y1-14050 |
| 31Y1-15395 | 31Y115700 | 31Y1-15880 | 31Y1-20430 | 31Y124670 | 31Y124790 | 31Y1-26410 | 31Y126580 |
| 31Y128960 | 31Y129100 | 31Y1-30111 | 31Y1-32910 | 31Y133571 | 31Y115230 | 31Y1-28790 | |
For more part number matching or OEM code identification, feel free to contact us directly.
Installation Instructions
We provide two standard methods to install hydraulic cylinder seals. Choose based on your seal type and available tools.
Installation Method 1: Standard Press-Fit Assembly
- Use the mounting pin to align the seal components inside the cylinder bore.
- Use a ballast tool, locating cone sleeve, and auxiliary pressure plate to gradually compress and install the seal components into the gland without damaging the material.
This method is suitable for standard seals with medium flexibility, and reduces the risk of tearing during installation.
Installation Method 2: PTFE & O-Ring Installation with Calibration
O ring installation
PTFE Slip Ring Install
Calibration
- O-Ring Installation
Lubricate and place each O-ring into its groove using specialized tools to avoid twisting or over-stretching. - PTFE Slip Ring Installation
Gently expand the PTFE ring using a heated mandrel or forming tool, then place it over the piston or gland.
Allow it to cool and reshape into its groove precisely. - Calibration
Use pressing tools or calibration sleeves to compress and reshape the PTFE ring evenly, restoring its tight fit before cylinder reassembly.
This method is especially recommended for high-pressure or precision-fit PTFE seals and wear rings.
Quality Control & Packaging
All Hyundai seal kits undergo strict dimensional inspection, material hardness testing, and oil compatibility validation. Kits are packaged with individual sealing components clearly labeled and vacuum-sealed when necessary to preserve material integrity during storage and shipment.
We also offer customized labeling and barcode packaging for bulk or dealer orders.
Application Scenarios
Our hydraulic seal kits are widely used in Hyundai excavators across construction, demolition, quarrying, and agricultural projects. They are particularly effective in environments with:
- High-pressure hydraulic demands
- Repetitive cylinder motion
- Dirty or abrasive operating conditions
- Extreme temperature fluctuations
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.
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.
