The YNF16879 lift cylinder seal kit (10G-63-02010 / 101-63-02010) is engineered for the lifting hydraulic cylinder of Komatsu D21A-6 bulldozers and compatible demolition attachments. This complete seal kit restores the cylinder’s sealing capability, prevents hydraulic oil leakage, and ensures stable lifting performance under continuous heavy-duty operation.
Manufactured with high-quality rubber, polyurethane, and PTFE composite materials, each seal is designed to withstand high pressure, extreme temperature variations, and abrasive contamination. The kit includes all essential sealing components such as piston seals, rod seals, dust seals, O-rings, backup rings, and wear rings—ensuring full restoration of cylinder reliability.
This seal kit is frequently used by machinery repair centers, demolition equipment maintenance teams, and aftermarket distributors needing a durable, cost-effective replacement with OEM-equivalent performance. YNF Machinery ensures stable quality, competitive prices, and consistent stock availability.
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FAQs：
Q: Is this seal kit compatible with Komatsu D21A-6?
A: Yes, it directly replaces 10G-63-02010 / 101-63-02010 seals.
Q: Does this kit fit demolition equipment lifting cylinders?
A: Yes, widely used for multiple demolition lifting cylinders of similar size.
Q: What is the minimum order quantity?
A: MOQ is 1 set for urgent maintenance needs.
