Crown Seal Kit for Pallet Jacks
220028078
Guaranteed Fit. Check fit with us before you buy. If we confirm it fits your machine and it doesn’t, we’ll exchange or refund it: no restocking fee, return shipping on us. How it works
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Compatibility
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Visit our diagram page for part references to popular models
Product Description
220028078 Crown Seal Kit is a direct-fit hydraulic seal replacement assembly engineered for Crown manual pallet jacks, superseding Crown part 44648 and compatible with serial range 3-118400 to 3-183849. Kit features NBR and polyurethane seals for restoring maximum hydraulic pressure integrity in high-cycle warehouse pallet truck operation.
Specifications
Part Numbers & Compatibility
| Make | Crown |
| Manufacturer Part Number | 220028078 |
| Cross-Reference Part Numbers | Direct replacement for Crown 44648, equivalent to CR 44648 |
Additional Specifications
| Reference Drawing Number | 220028078, supersedes CR 44648 component assembly |
| Seal Material | Nitrile (NBR) and polyurethane energized elastomer seals |
| O-Ring Material | Nitrile (Buna-N) NBR per SAE J200 |
| Backup Ring Material | Polyurethane per ASTM D4065 |
Frequently Asked Questions
Q: What materials are used in the 220028078 seal kit?
A: The 220028078 features NBR and polyurethane seals designed for hydraulic pressure service. These materials provide reliable sealing across operating temperature ranges and resist degradation from standard hydraulic fluids.
Q: How do I know when to replace the 220028078 seal kit?
A: Signs that the 220028078 seal kit may need replacement include slow lifting, loss of pressure during loaded cycles, hydraulic fluid leaks around the pump housing, or an inability to hold load. These symptoms indicate the seal kit needs replacement to restore hydraulic performance.
Q: What should I consider when replacing the 220028078 seal kit?
A: When replacing the 220028078 seal kit, ensure you have the correct part number for your model. Verify compatibility with your specific Crown pallet jack before installation.
Q: What are the benefits of using the 220028078 seal kit?
A: The 220028078 seal kit is designed to restore hydraulic system integrity and maintain pressure performance in compatible Crown models. It ensures reliable operation under high-cycle warehouse conditions.