Hydraulic Cylinder Seal Kits for Komatsu Bulldozers Blade and Ripper
Reliable hydraulic seal kits for Komatsu bulldozer cylinders. Designed for blade lift, tilt, and ripper applications. Delivers leak-proof performance and extended seal life in tough working 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 | 20 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.
These hydraulic seal kits are engineered for Komatsu bulldozer cylinders, including blade lift, tilt, angle, and ripper applications. Whether you're resealing a worn cylinder or performing a complete rebuild, our kits provide a comprehensive solution to restore hydraulic integrity and prevent fluid leakage.
All kits include high-performance seals that resist heat, pressure, and contamination — ensuring long-term durability on construction and mining job sites.
Key Components in the Seal Kit
- Rod Seal – Prevents hydraulic fluid from escaping the cylinder
- Piston Seal – Ensures sealing within the cylinder bore
- Dust Seal / Wiper – Keeps dirt and debris out of the cylinder
- Wear Rings – Support lateral loads and prevent metal-to-metal contact
- Back-up Rings & O-Rings – Enhance overall sealing system stability
Sample Part Numbers for Reference
Here are a few common Komatsu seal kit part numbers used in bulldozers
| Part Numbers | |||||
|---|---|---|---|---|---|
| 707-99-36150 | 707-99-39710 | 707-99-43250 | 707-99-52160 | 707-99-53620 | 707-99-64250 |
Need a different part number? Send your cylinder code or bulldozer model — we’ll help confirm the correct kit.
Compatible Komatsu Bulldozer Models
These kits are suitable for many Komatsu bulldozers, including but not limited to:
- D31 / D37 / D39
- D65EX / D65PX / D65WX
- D85A / D85EX / D85PX
- D155AX / D275AX / D375A
Each kit is precision-matched to Komatsu OEM specs for easy installation and reliable fit.
Installation Methods
- Method 1: Mounting Pin Fit
Use a hydraulic press or mounting pin to slowly press seals into grooves, ensuring even placement. - Method 2: Cone + Pressure Plate
Insert seals using a cone-type expanding tool and compression plate. Lubricate before installation to avoid tearing soft sealing edges.
Tip: Clean all grooves thoroughly and inspect for scoring or damage before reassembly.
Material & Durability
Seals are made from polyurethane, PTFE, and nitrile rubber (NBR) to withstand:
- High-pressure hydraulic systems
- Outdoor temperatures and UV exposure
- Contaminants like sand, oil, and water
Application Scenarios
- Resealing bulldozer blade lift/tilt/angle cylinders
- Maintenance of ripper cylinders
- Preventing oil leaks and maintaining hydraulic force
- Use in roadbuilding, mining, earthmoving operations
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.
