Product Description
The HY 4077399 is a factory-spec polyurethane load wheel assembly engineered for Hyster electric lift trucks. This direct replacement wheel features a 3.25-inch diameter by 4.5-inch width polyurethane tread (95A–97A Shore hardness) bonded to a steel core with sealed bearings and integrated string guards. The durable design with riser support provides reliable performance in demanding material handling operations. Cross-reference part numbers include 4081635, 4151465, 2790398, 2790052, and others for interchangeability verification.
Specifications
Material & Construction
| Core Material | Steel |
| Wheel Tread | Polyurethane (95A–97A Shore) |
| Finish | Machined steel core with molded polyurethane tread |
| Sealed Bearings | Yes |
| String Guards | Yes |
| Riser | Yes |
Dimensions
| Diameter | 3.25 inches |
| Width | 4.5 inches |
Part Numbers
| Part Number | HY 4077399 |
| Alternate Part Number | HY4077399 |
| Cross-Reference Part Numbers | 4081635, 4151465, 2790398, 2790052, 3161067, S01803220011, 4222701, S01145840040, 2793095 |
| Supersedes | 4081635 |
| Equivalent Part Numbers | HY 4077399-XL, 310700-203-KIT |
Frequently Asked Questions
Q: What are the dimensions of the HY 4077399 poly load wheel assembly?
A: The HY 4077399 has a 3.25 inch diameter and 4.5 inch width. These dimensions must be verified against your mast assembly specification to confirm fitment before ordering.
Q: Which Hyster electric lift truck models is the HY 4077399 load wheel compatible with?
A: The HY 4077399 is engineered for Hyster electric lift trucks. Verify compatibility against your specific model designation and compare cross-reference part numbers to confirm fitment.
Q: What materials are used in the HY 4077399 load wheel assembly?
A: The HY 4077399 features a polyurethane wheel tread bonded to a steel core with sealed bearings. This construction provides durability in material handling operations while protecting bearings from contamination.
Q: What are the cross-reference part numbers for the HY 4077399?
A: Cross-reference numbers for the HY 4077399 include 4081635, 4151465, 2790398, 2790052, 3161067, S01803220011, 4222701, S01145840040, and 2793095. The HY 4077399 supersedes 4081635. Always verify interchangeability before substituting parts.
Q: How long do polyurethane load wheels typically last in service?
A: Polyurethane wheel lifespan depends on duty cycle, load weight, floor conditions, and maintenance. Replace wheels when polyurethane shows visible wear, cracking, or deterioration affecting load capacity or alignment.
Q: Are there different polyurethane compounds available for the HY 4077399?
A: The HY 4077399 uses standard polyurethane tread. Specialized high-traction compounds are available for wet floor or cold storage applications. Verify material specifications against your operating environment before ordering.