Product Description
OEM Yale YL 505965509 oil seal for electric lift truck applications, manufactured to precise radial shaft sealing tolerances for Yale original equipment. MPN 505965509. No cross-reference or superseded part numbers available.
Specifications
Part Numbers
| OEM Part Number | YL 505965509 |
| Manufacturer Part Number | 505965509 |
| Alternate Manufacturer Reference | YT505965509 |
Frequently Asked Questions
Q: What is the function of the YL 505965509 oil seal?
A: The YL 505965509 is a radial shaft oil seal designed to prevent hydraulic or lubricating oil from leaking out of rotating shafts in Yale electric lift truck assemblies. It maintains system pressure and keeps contamination out of critical bearing and motor areas.
Q: What are the dimensional specifications for the YL 505965509 seal?
A: The YL 505965509 is manufactured to OEM Yale specifications for precise radial shaft sealing tolerances. Contact us with your equipment model and affected component for exact bore diameter, shaft diameter, and seal thickness to ensure correct replacement.
Q: Are there any cross-reference part numbers for the YL 505965509?
A: The part number 505965509 is the manufacturer designation, and an alternate reference YT505965509 may appear in some documentation. However, no other documented cross-references or superseded numbers are currently available. Always verify the specific seal for your equipment before ordering.
Q: What are the signs that the YL 505965509 seal is leaking?
A: Visual signs include oil pooling under the equipment, oil residue around the shaft or bearing housing, a drop in system fluid level, or visible seepage along the shaft at the seal location. Early detection and replacement prevent bearing damage and system failure.
Q: How often should the YL 505965509 seal be replaced?
A: Oil seals typically last 3 to 5 years depending on operating temperature, shaft speed, and oil condition. Replace proactively during major service intervals or immediately if leakage is observed. Worn seals should not be left in service as they allow oil loss and contamination.