Product Description
Industrial hydraulic seal kit, manufacturer part number YA-505136049, designed for Yale fork truck lift and freelift cylinders. Includes rod seal, piston seal, wiper, and O-ring elements constructed of high-grade NBR and polyurethane. Suitable as a direct replacement for OEM 505136049 and YT505136049 in Yale lifting equipment.
Specifications
Application
| Compatible Models | Yale forklift models equipped with OEM lift cylinder part number 505136049 |
Material & Construction
| Backing/O-Ring Material | Nitrile (NBR) and thermoplastic polyurethane (TPU) |
Part Numbers
| Manufacturer Part Number | YA-505136049 |
| OEM Part Number | 505136049 |
| Alternate Part Number | YT505136049 |
| Cross-Reference Part Numbers | Replaces Yale 505136049, equivalent to YT505136049 |
Frequently Asked Questions
Q: What components are included in the YA-505136049 hydraulic seal kit?
A: The YA-505136049 seal kit includes four core elements: rod seal, piston seal, wiper, and O-ring. All sealing surfaces are constructed from high-grade NBR (nitrile rubber) and polyurethane materials rated for industrial hydraulic pressure applications. This complete assembly replaces the entire seal stack in Yale lift and freelift cylinder systems.
Q: Is the YA-505136049 compatible with models other than Yale?
A: The YA-505136049 is designed as a direct replacement for Yale OEM part 505136049 and equivalent YT505136049. While it is a Yale-specific seal kit, verify your cylinder bore dimensions and rod diameter match this kit before ordering. It is not a universal fit and should not be substituted in other brands without dimensional confirmation.
Q: What is the lifespan of the NBR and polyurethane seals in this kit?
A: Typical lifespan depends on operating conditions, fluid type, temperature, and pressure. NBR seals in standard industrial hydraulic service generally perform for 2,000 to 5,000 operating hours. Polyurethane components tend to last longer in clean hydraulic oil but degrade faster in cold storage or wet environments. Monitor for external leakage as the primary failure indicator.
Q: Are cross-reference part numbers YT505136049 and OEM 505136049 identical to YA-505136049?
A: Yes. YA-505136049, YT505136049, and Yale OEM part 505136049 are equivalent seal kits. They contain the same component specifications and seal stack configuration. Order YA-505136049 as the current manufacturer part number; the cross-references confirm compatibility if you encounter equipment documentation using alternate numbering.
Q: What hydraulic fluids are compatible with the NBR and polyurethane materials in this kit?
A: NBR and polyurethane seals in this kit are compatible with standard mineral-based hydraulic oils (ISO VG 46 and similar), petroleum-based systems, and most industrial hydraulic fluids. Do not use in fire-resistant phosphate ester or water-in-oil emulsion systems without verifying material compatibility first. Always confirm fluid type in your Yale equipment documentation.
