230-9357 Hydraulic Bucket Cylinder Seal Kit 2309357 Fits Caterpillar 416D, 416E, 420D, 420E, 430D, 430E, 446D, 450E
Hydraulic Cylinder Seal Kit 230-9357 Heavy-Duty Seals for Construction Machinery
Product Overview
The Hydraulic Cylinder Seal Kit 230-9357 is a precision-engineered sealing solution designed for excavators, loaders, and bulldozers in general construction and earthmoving applications. This kit provides reliable leak prevention and durability under standard hydraulic pressures, ensuring extended service life for cylinders in typical construction environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Compatible Equipment | Excavators (e.g., 20–30-ton class), Wheel Loaders, Bulldozers |
| Pressure Range | 0–25 MPa (3,625 PSI) |
| Temperature Tolerance | -20°C to +100°C (-4°F to +212°F) |
| Dynamic Seals Material | Standard Nitrile Rubber (NBR) – Cost-effective for general hydraulic oils |
| Static Seals Material | NBR O-Rings (Compatible with mineral-based hydraulic fluids) |
| Guide Rings Material | PTFE-Impregnated Nylon (Balanced wear resistance and friction control) |
| Certifications | ISO 9001 (Manufacturing Quality Standards) |
| Compatibility | Boom/Arm/Bucket Cylinders, 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+) | Seals piston rod to prevent external fluid leakage and contamination ingress. |
| 3. Standard Wiper Seal(NBR+) | Basic debris exclusion for general construction site conditions. |
| 4. Guide Rings (PTFE-Nylon) | Reduces metal-to-metal contact, ensuring smooth piston movement. |
| 5. O-Rings (NBR+) | Static sealing for cylinder end caps and ports. |
| 6. Backup Rings (NBR+) | Supports primary seals to prevent extrusion under moderate pressure. |
Key Features & Benefits
✅ Cost-Effective Solution: Optimized for standard construction equipment maintenance budgets.
✅ Wide Compatibility: Fits 20–30-ton class excavators and loaders from major brands (verify OEM specs).
✅ Easy Installation: Pre-assembled kit with standard components for quick field repairs.
✅ Reliable Performance: Meets ISO 9001 quality standards for consistent durability.
