Product Description
Yale OEM PU load wheel (single), part number YL 550091321. Polyurethane wheel; 3.25 inch diameter by 4.50 inch width; designed for manual Yale YA55 pallet jack application. Fits OEM shaft and bearing configuration; sized for ground-level transport with 95A durometer polyurethane tread; single replacement wheel.
Specifications
Material & Construction
| Wheel Material | 95A durometer polyurethane tread |
| Core Material | OEM structural polymer core |
| Bearing Material | Hardened steel |
| Hardness | Polyurethane Shore A 95 |
Part Numbers
| OEM Part Number | YL 550091321 |
| Cross-Reference Part Numbers | 550091321, 234# 550091321 |
| Replaces/Supersedes Part Numbers | Supersedes 550091320 (nylon load wheel) |
| Compatible Models | Yale YA55 manual pallet jack |
Frequently Asked Questions
Q: What are the specifications of the YL 550091321 PU load wheel?
A: The YL 550091321 is a single polyurethane load wheel with 3.25 inch diameter and 4.50 inch width. It features 95A durometer polyurethane tread with OEM structural polymer core material, designed for Yale YA55 manual pallet jack ground-level transport.
Q: Which Yale pallet jack models use the YL 550091321?
A: The YL 550091321 is designed for Yale YA55 manual pallet jack applications. It fits the OEM shaft and bearing configuration of this model. Verify your equipment model and load wheel dimensions before ordering.
Q: What part does the YL 550091321 replace or supersede?
A: The YL 550091321 supersedes the earlier YL 550091320 nylon load roller assembly. If your Yale YA55 pallet jack originally had a nylon load roller, this polyurethane wheel is the current OEM replacement specification.
Q: What is the 95A durometer polyurethane material used for?
A: The 95A durometer polyurethane tread on the YL 550091321 provides improved traction, wear resistance, and load-carrying performance compared to earlier nylon designs. This hardness rating is optimized for general-duty manual pallet jack applications and standard floor surfaces.
Q: Is the YL 550091321 a single wheel or a set?
A: The YL 550091321 is a single replacement wheel. If your pallet jack requires replacement of multiple wheels, order the quantity needed based on how many load wheels require replacement.