The YNF17029 (170-9946) Blade Cylinder Seal Kit is designed for CAT 312C excavators, providing a complete sealing solution for the boom and swing (blade) hydraulic cylinder. Manufactured with high-quality rubber and polymer materials, this kit ensures leak-free operation, smooth cylinder movement, and reliable performance under heavy-duty working conditions.

• Compatible with CAT 312C excavators

• Direct replacement for OEM part number 170-9946

• Includes a full set of seals, O-rings, and wear rings for complete blade cylinder maintenance

• Made from premium NBR, PU, and PTFE materials resistant to hydraulic oil, heat, and pressure

• Ensures stable and leak-free operation of the blade cylinder

• OEM-standard dimensions for precise fitment and easy installation

• Suitable for routine maintenance or full cylinder overhaul

• Enhances blade cylinder durability and overall excavator performance

• Machine model: CAT 312C

• Component: Blade / Boom / Swing Hydraulic Cylinder

• Ideal for construction, earthmoving, and heavy-duty excavation operations

• Installation guidance and technical assistance

• Pre-shipment photos and size confirmation

• Stable long-term supply for distributors and repair shops

• Custom blade cylinder seal kits available upon request

• Seals packed individually in protective bags

• Export-standard cartons for safe delivery

• Neutral or YNF branded packaging available

• Supports mixed shipments with other parts

Q1: Can this kit fit other CAT models?
A: It is designed specifically for CAT 312C. Please provide OEM numbers or photos for compatibility verification.

Q2: What is the expected service life?
A: The seals are designed for long-lasting performance under normal and heavy-duty hydraulic operations.

Q3: Can this kit be shipped with other parts?
A: Yes, mixed orders are fully supported.