Product Description
CR 44648-SUPER Super Seal Kit is engineered for complete hydraulic unit rebuilds on Crown PTH50 manual pallet jacks, providing direct OEM-equivalent replacement for all major internal seals, O-rings, backup rings, spacers, and gaskets. Manufactured from abrasion-resistant nitrile and PTFE, this kit supports system pressures up to 3000 PSI and bore diameters common to Crown models, restoring optimal hydraulic function and sealing integrity.
Specifications
Hydraulic
| Fluid Compatibility | Mineral oil-based hydraulic fluid, ISO 32 or equivalent (Crown factory spec) |
| Seal Pressure Rating | Rated for static and dynamic pressures up to operating limits of the PTH50 hydraulic system |
Material
| Seal Material | Nitrile (NBR) elastomer, PTFE backup rings, fiber-reinforced gaskets |
Part Numbers
| Manufacturer Part Number | CR 44648-SUPER |
| OEM Part Number | 044648-SUPER |
| Zoro Reference Number | G904897673 |
| Cross-Reference Part Numbers | Equivalent to 44648-SUPER, replaces CR 44648AM, fits Crown PTH50 (older and newer hydraulic units) |
| Compatible Equipment | Direct fit for Crown model PTH50 manual pallet jack (hydraulic unit) |
Frequently Asked Questions
Q: What does the 044648-SUPER seal kit contain?
A: The 044648-SUPER is a complete hydraulic unit rebuild kit for Crown PTH50 manual pallet jacks. It includes all major internal seals, O-rings, backup rings, spacers, and gaskets required for full hydraulic pump and cylinder restoration.
Q: What pressure rating does the 044648-SUPER seal kit support?
A: The kit is engineered to support system pressures up to 3000 PSI, which is typical for manual pallet jack hydraulic systems. The nitrile and PTFE sealing materials provide reliable performance at standard load-rated pressures.
Q: What pallet jack models does the 044648-SUPER fit?
A: The 044648-SUPER is a direct OEM-equivalent replacement for Crown PTH50 manual pallet jacks. It is compatible with both older and newer generation Crown PTH50 hydraulic units, including equipment that previously used CR 44648AM seals.
Q: What materials are the seals in the 044648-SUPER kit made from?
A: Seals and O-rings are manufactured from abrasion-resistant nitrile and PTFE. Nitrile provides flexibility and chemical resistance to hydraulic fluid, while PTFE offers superior wear resistance and low friction for pump and cylinder pistons.
Q: Does the 044648-SUPER kit include seals for both the pump and cylinder?
A: Yes. The kit provides complete internal seal coverage for full hydraulic unit rebuilds on Crown PTH50 jacks. This includes pump inlet and outlet seals, cylinder rod and cap seals, backup rings, spacers, and all associated gaskets.
Q: What cross-reference part numbers match the 044648-SUPER seal kit?
A: The 044648-SUPER is equivalent to and replaces Crown part CR 44648AM. It also cross-references to Zoro reference number G904897673 for parts lookup compatibility. All numbers identify the same complete seal kit for Crown PTH50 models.