CR 818263

Frequently Asked Questions

Q: What is the CR 818263 o-ring and what is its purpose?
A: The CR 818263 is a hydraulic seal o-ring manufactured by Crown as an OEM component. It is engineered to seal the hydraulic unit assembly in Crown PTH50 manual pallet jacks (serial numbers 7-512501 and above) and maintains system integrity to prevent fluid leakage.

Q: Which Crown pallet jacks require the CR 818263?
A: The CR 818263 is designed for Crown PTH50 manual pallet jacks manufactured with serial number 7-512501 or higher. Verify your equipment serial number before ordering, as this seal is specific to this model and serial range.

Q: What are the common failure symptoms for the CR 818263?
A: Hydraulic fluid leaks, loss of lifting pressure, or difficulty maintaining load are indicators that the CR 818263 o-ring may need replacement. Seals can degrade over time from pressure cycling, temperature changes, and contamination. If you notice fluid on the pump or cylinder, the seal should be inspected.

Q: Are there alternate or cross-reference part numbers for the CR 818263?
A: No. The CR 818263 has no known cross-reference or superseded part numbers. This is the factory OEM part for Crown PTH50 manual pallet jacks. When ordering seal kits or replacement components, use CR 818263 to ensure you receive the correct OEM part.

Q: Is the CR 818263 part of a larger seal kit?
A: The CR 818263 is a single component within the Crown PTH50 hydraulic assembly. It may be ordered individually or as part of a complete seal kit that includes the backup ring CR 818262, wiper CR 818261, and other related components. Consult the pump cylinder assembly diagram for your specific configuration.