280-7013 Steering Cylinder Hydraulic Seal Kit 2807013 for Caterpillar Backhoe Loader CAT 434E 444E 450E 440 450F 450
280-7013 Seal Kit – Support OEM & ODM-Compatible Hydraulic Seals for Construction Machinery Repair Caterpillar Backhoe Loader CAT 434E 444E 450E 440 450F 450
Product Overview
The 280-7013 Seal Kit is a comprehensive sealing solution designed for hydraulic cylinders in construction machinery, including excavators, and loaders. This kit restores hydraulic performance by preventing leaks and contamination, ensuring reliable operation under standard working conditions.
Technical Specifications
| Parameter | Specification |
|---|---|
| Compatible Equipment | Tractors, Excavators (20–30-ton class), Loaders |
| Pressure Range | 0–20 MPa (2,900 PSI) |
| Temperature Tolerance | -20°C to +90°C (-4°F to +194°F) |
| Dynamic Seals Material | Nitrile Rubber (NBR) – Compatible with ISO VG 32/46 hydraulic oils |
| Static Seals Material | NBR O-Rings – Resists mineral oil and mild contaminants |
| Guide Components | PTFE-Impregnated Nylon – Low friction, wear-resistant |
| Certifications | ISO 9001 (Quality Management System) |
| Compatibility | Lift/Tilt Cylinders, Bucket/Blade Actuators, Stabilizer Systems |
Kit Components & Functions
| Component | Function |
|---|---|
| 1. Piston Seal (NBR U-Cup) | Prevents internal leakage between hydraulic chambers. |
| 2. Rod Seal (Double-Lip) | Blocks external leaks and dust ingress in construction environments. |
| 3. Wiper Seal (NBR) | Removes debris during rod retraction. |
| 4. Guide Rings | Reduces friction for smooth piston movement. |
| 5. O-Rings | Static sealing for ports and end caps. |
| 6. Backup Rings | Supports primary seals to prevent extrusion under pressure. |
Key Features & Benefits
✅ OEM-Compatible Design: Precision-engineered to match original equipment specifications.
✅ Durability: NBR material withstands frequent use in demanding environments.
✅ Complete Repair Kit: All seals required for full cylinder overhaul.
✅ Cost-Effective: Extends equipment lifespan without costly replacements.
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