Product Description
Valu-Jack VJ 491 Seal Kit for KD-5500 manual pallet jacks contains piston, rod and wiper seals for hydraulic pump unit maintenance. Suitable for hydraulic cylinders with 0.75–1.00 inch bore and 0.50–0.63 inch rod diameter, constructed from NBR and urethane compounds, compatible with systems rated up to 3000 PSI.
Compatibility: Fits pallet jacks made by Valu-Jack, model KD-5500. Alternate model: KD-5500. SKU: VJ 491
Specifications
Material & Construction
| Material | NBR and urethane compounds |
| Seal Construction | Compression-molded with precision ground edges for dynamic hydraulic sealing |
Part Numbers & Compatibility
| Make | Valu-Jack |
| Model | KD-5500 |
| Part Number | VJ 491 |
Wheel Dimensions
| Rod Diameter | 0.50–0.63 inch |
Performance Specifications
| Pressure Rating | Up to 3000 PSI |
Additional Specifications
| Seal Components | Piston seal, rod seal, wiper seal |
Frequently Asked Questions
Q: What equipment does the VJ 491 fit?
A: The VJ 491 is designed for Valu-Jack manual pallet jacks with model numbers KD-5500, or KD-5500.
Q: What materials are used in the VJ 491 seals?
A: The VJ 491 seals are made from NBR and urethane compounds, providing resistance to hydraulic fluids and durability in high-pressure applications.
Q: When should the VJ 491 seal kit be replaced?
A: Replace the VJ 491 seal kit when you notice hydraulic fluid leaks, loss of lift pressure, or sluggish pump operation. Routine replacement during major pump rebuilds helps extend equipment life.
Q: What are the benefits of using the VJ 491 seal kit?
A: The VJ 491 ensures proper hydraulic sealing, prevents fluid leaks and maintains optimal pump performance in Valu-Jack manual pallet jacks.
Q: What types of seals are included in the VJ 491 kit?
A: The VJ 491 contains piston, rod and wiper seals designed for hydraulic pump unit maintenance.
