Product Description
CL 1808151 is an OEM Clark U-Cup hydraulic seal for manual pallet jack pump assemblies, designed for piston sealing applications on models such as the CJ55. Manufactured from high-performance polyurethane for use in hydraulic lift cylinders in manual pallet trucks.
Compatibility: Fits pallet jacks made by Clark, model CJ55. SKU: CL 1808151
Specifications
Material
| Primary Seal Material | Polyurethane elastomer |
Part Numbers
| OEM Part Number | CL 1808151 |
| Manufacturer Part Number | CL 1808151 |
| Compatible Models | Clark manual pallet jack, including CJ55 |
Frequently Asked Questions
Q: What is the CL 1808151 and what does it seal?
A: The CL 1808151 is an OEM U-Cup hydraulic seal manufactured by Clark for manual pallet jack pump assemblies. It provides piston sealing in the hydraulic pump and is designed to prevent internal leakage of hydraulic fluid while maintaining pressure during lift and lower cycles on models such as the CJ55.
Q: What material is the CL 1808151 made from?
A: The CL 1808151 is manufactured from high-performance polyurethane elastomer. Polyurethane provides excellent resistance to hydraulic fluid degradation, temperature fluctuations, and repeated compression cycles typical in manual pallet truck lift cylinders.
Q: Which Clark models require the CL 1808151?
A: The CL 1808151 is compatible with Clark manual pallet jacks including the CJ55 model and other CJ-series equipment with the same pump geometry. Verify your specific model and pump assembly revision before ordering to ensure correct fitment.
Q: How long does a polyurethane U-Cup seal like the CL 1808151 typically last?
A: Lifespan depends on operating conditions, hydraulic fluid quality, and load cycles. In typical warehouse use, polyurethane seals last 3 to 5 years. Harsh conditions, contaminated fluid, or frequent heavy loading reduce this interval. Replace if the jack loses pressure, leaks, or becomes difficult to pump.
Q: Is the CL 1808151 available as part of a seal kit?
A: Yes, the CL 1808151 is typically included in Clark CJ55 hydraulic seal kits along with wipers, O-rings, and other sealing components. You can also order it individually by SKU if you need only the U-Cup seal for repair.
Q: Are there equivalent cross-reference numbers for the CL 1808151?
A: Use the Clark OEM part number CL 1808151 for accurate replacement. While some aftermarket suppliers may reference this seal for multiple manual pallet jack brands, verify compatibility with your equipment documentation before substituting with non-OEM alternatives.
