501-6706 Hydraulic Cylinder Seal Kits 5016706 for Caterpillar Backhoe Loader 428E 432E 416F 420F 422F CAT Excavator Repair
501-6706 Hydraulic Cylinder Seal Kit – OEM-Compliant Seals for Construction and Industrial Hydraulic Systems
Product Overview
The 501-6706 Hydraulic Cylinder Seal Kit is a precision-engineered sealing solution designed for hydraulic cylinders in construction equipment and industrial machinery. This kit restores cylinder performance by preventing leaks, reducing contamination, and ensuring reliable operation under standard hydraulic pressure conditions.
Technical Specifications
| Parameter | Specification |
|---|---|
| Compatible Equipment | Excavators, Loaders, Industrial Presses, Material Handling Systems |
| Pressure Range | 0–25 MPa (3,625 PSI) |
| Temperature Tolerance | -20°C to +100°C (-4°F to +212°F) |
| Dynamic Seals Material | High-Performance Nitrile Rubber (NBR) – Compatible with ISO VG 46/68 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, Press Actuators |
Kit Components & Functions
| Component | Function |
|---|---|
| 1. Piston Seal (NBR U-Cup) | Maintains pressure integrity between cylinder chambers. |
| 2. Rod Seal (Double-Lip) | Prevents external leakage and contamination in dusty environments. |
| 3. Wiper Seal (NBR) | Removes debris during piston rod retraction. |
| 4. Guide Rings | Minimizes metal-to-metal friction 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 Performance: NBR material resists wear from frequent hydraulic cycles.
✅ Complete Repair Solution: Includes all seals required for full cylinder overhaul.
✅ Cost-Effective Maintenance: Extends cylinder lifespan at a fraction of replacement costs.
Products categories
-
7X-2783 Hydraulic Cylinder Seal Kit 7X2783 for Caterpillar Excavator Backhoe Loader CAT 120G 120H 130G 140G 160H 416C 426C 428B
-
42N-6C-13340 Bucket Cylinder Hydraulic Seal Kit 42N6C13340 for Komatsu Excavator WB146-5 WB146PS-5 WB156-5 WB156PS-5 WB91R-5 WB91R-5E0 WB93R-5 WB93R-5E0 WB93S-5 WB97S-5 WB97S-5E0
-
215-2023 Efficient Steering Cylinder Hydraulic Seal Kit 2152023 for Caterpillar Excavators and Loaders 414E, 416D, 416E, 416F, 420D, 420E, 420F
-
514-1734 Hydraulic Cylinder Seal Kit 5141734 for Cat Excavator 426 Backhoe Loader