514-1734 Hydraulic Cylinder Seal Kit 5141734 for Cat Excavator 426 Backhoe Loader
514-1734 Hydraulic Cylinder Seal Kit – OEM-Compliant Replacement for Construction Equipment Cylinders
Product Overview
The 514-1734 Hydraulic Cylinder Seal Kit is a precision-engineered sealing solution designed for hydraulic cylinders in construction machinery, including backhoe loaders, excavators, and loaders. This kit provides a complete set of seals to restore cylinder performance, prevent leaks, and extend equipment lifespan in demanding earthmoving and excavation operations.
Technical Specifications
| Parameter | Specification |
|---|---|
| Compatible Equipment | Backhoe Loaders (Case 580N, John Deere 310SL), Excavators (20–30-ton class) |
| 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 standard mineral-based hydraulic fluids |
| Guide Rings Material | PTFE-Reinforced Nylon – Low friction, high wear resistance |
| Certifications | ISO 9001 (Quality Management System) |
| Compatibility | Boom/Arm/Bucket Cylinders, Stabilizer Legs, Loader Lift/Tilt Systems |
Kit Components & Functions
| Component | Function |
|---|---|
| 1. Piston Seal (NBR U-Cup) | Prevents internal leakage between cylinder chambers during operation. |
| 2. Rod Seal (Double-Lip NBR) | Blocks external fluid leaks and contamination ingress in dusty environments. |
| 3. Wiper Seal (NBR) | Removes dirt and debris from piston rod surfaces during retraction. |
| 4. Guide Rings (PTFE-Nylon) | Reduces metal-to-metal friction, ensuring smooth cylinder movement. |
| 5. O-Rings (NBR) | Provides static sealing for cylinder end caps and port connections. |
| 6. Backup Rings (NBR) | Supports primary seals to prevent extrusion under moderate pressure cycles. |
Key Features & Benefits
✅ OEM-Compliant Design: Exact dimensions match Case 580N and John Deere 310SL cylinders.
✅ Durable Performance: NBR seals withstand frequent digging and loading cycles.
✅ Complete Repair Solution: Includes all seals needed for full cylinder overhaul.
✅ Cost-Effective: Avoids expensive cylinder replacements with reliable leak prevention.
