233-9205 Hydraulic Cylinder Seal Kit 2339205 for Caterpillar Backhoe Loaders Cat 120K 120M 140G 140H 160H 160M 12H 12M 140M 14H 14M 16H 16M+
233-9205 Hydraulic Cylinder Seal Kit – OEM-Compliant Seals for Construction and Industrial Hydraulic Systems
Product Overview
The 233-9205 Hydraulic Cylinder Seal Kit is a precision-engineered sealing solution designed for hydraulic cylinders in construction equipment and industrial machinery. This kit provides reliable leak prevention and restores hydraulic performance in standard earthmoving, material handling, and industrial applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Compatible Equipment | Excavators, Loaders, Bulldozers, Industrial Presses |
| Pressure Range | 0–25 MPa (3,625 PSI) |
| Temperature Tolerance | -20°C to +100°C (-4°F to +212°F) |
| Dynamic Seals Material | High-Grade Nitrile Rubber (NBR) – Compatible with ISO VG 46/68 hydraulic oils |
| Static Seals Material | NBR O-Rings – Resists mineral-based hydraulic fluids |
| Guide Components | PTFE-Reinforced Nylon – Low friction, wear-resistant |
| Certifications | ISO 9001 (Quality Management System) |
| Compatibility | Boom/Arm/Bucket Cylinders, Lift/Tilt Systems, Stabilizer Legs |
Kit Components & Functions
| Component | Function |
|---|---|
| 1. Piston Seal (NBR U-Cup) | Maintains pressure integrity between cylinder chambers. |
| 2. Rod Seal (Double-Lip) | Prevents external leaks and contamination in dusty or wet environments. |
| 3. Wiper Seal (NBR) | Removes debris during piston rod retraction. |
| 4. Guide Rings | Reduces friction between piston and cylinder for smooth operation. |
| 5. O-Rings | Static sealing for cylinder ports and end caps. |
| 6. Backup Rings | Supports primary seals to prevent extrusion under pressure. |
Key Features & Benefits
✅ OEM-Compatible Design: Precision-machined to match original equipment specifications.
✅ Durable Construction: NBR material resists wear from frequent hydraulic cycles.
✅ Complete Repair Kit: Contains all seals required for full cylinder overhaul.
✅ Cost-Efficient: Avoids costly downtime with fast, reliable repairs.
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